Engine: '99 1.8L
Turbo: GT2860RS
Manifold: BEGi Log
Downpipe Size/Style: BEGi Stainless SGDP
Exhaust Size: none yet, open DP
Intercooler Core Size: BEGi #2
Intake Manifold: Stock
Headwork: None
Engine Management: Brain MS3x
Other Spoolin' Helpers/Hurters: FAB9 COPs, Siemens/Deka 550cc's (BEGi)
Trans & Rear End Ratio: 6-speed, 3.909 LSD
Rear tire size: 205/45R17

FIFTH GEAR PULL:

RPM Boost(psi)

2000 0.5
2250 2.6
2500 3.0
2750 3.4
3000 3.8
3250 4.2
3500 5
3750 6.2
4000 6.9
4250 7.6
4500 7.9
4750 8.3
5000 8.7
5250 9.1
5500 9.2

Attachment 238613

I have the DIY EBC but not installed yet, and the wastegate actuator is the 7-11 psi adjustable one from BEGi. I installed the turbo yesterday and did 40 or so miles of VEAL, and this is what I ended up with. Next step is to make up an exhaust... Open DP is obnoxious...

Attachment 238614

I still have some beautifying to do, but it's all there... It was a BEGi S3 kit I got used off of a 96. Only things I needed to figure out was how to mount the braided coolant lines, and I had to rig a hanger to hold the end of the DP away from the bottom of the body since the flange doesn't line up to my current exhaust.

Engine: '95 1.8L oversised to 1884cc with supertech 9.0-1 pistons and wiseco rings, acl bearings, Gates waterpump, BE oilpump, manley rods, FM supersize happymeal with lightweight flywheel, all ARP bolts
Turbo: GT2860RS
Manifold: Sturovo log manifold
Downpipe Size/Style: Sturovo 70mm DP
Exhaust Size: sturovo 70mm decat+ 3" enthuzacar turbo exhaust
Intercooler Core Size: 60cmx30cmx7,6cm with FM piping
Intake Manifold: Stock
Headwork: reworked
Engine Management: reverant basic MS3
Other Spoolin' Helpers/Hurters: Siemens 400lph fuelpump/ 1000cc ev14 injectors
Trans & Rear End Ratio: 6-speed, 3.909 LSD
Rear tire size: 195-50-15

https://www.miataturbo.net/attachmen...ine=1419173828
https://dl.dropboxusercontent.com/u/...orquepower.jpg

Engine: '92 1/6L
Turbo: Volvo TD04HL-15g
Manifold: Custom flowish log
Downpipe Size/Style: 3 inch
Exhaust Size: 2.5 inch.
Exhaust Components: Corksport drift exhaust
Intercooler Core Size: 27"x5.5"x2.5"
Intake Manifold: Stock
Headwork: Stock
Engine Management: Megasquirt MS3+MS3x
Other Spoolin' Helpers/Hurters: Toyota COPs, RX8 injectors, EBC
Trans & Rear End Ratio: 5-speed, 4.1 LSD
Rear tire size: 205/50-15

FOURTH GEAR PULL:

RPM Boost(psi)
2250 4.3
2300 4.4
2400 4.5
2500 5.2
2600 6.0
2700 6.8
2800 7.7
2900 8.7
3000 9.5
3100 10.4
3200 10.8
3300 11.4
3400
3500
3600
3700

Closed loop EBC started about 3000 rpms and peaked at 11 psi. My target is 170kpa. Rest will be filled in when I turn up the boost.

http://i60.tinypic.com/34hyjdf.jpg

An update. Have since installed the DIY EBC and added a few feet of 2.5" straight pipe and a turn down.

2500 .1
2750 2.7
3000 4.0
3250 5.1
3500 6.5
3750 8.1
4000 9.5
4250 10.9

Huge improvements with EBC... this is in open loop boost control, haven't set up closed loop yet.

Engine: NA 1884cc forged
Turbo: TD04L
Manifold: Sturovo log
Downpipe Size/Style: 2.75"
Exhaust Size: 2.25
Exhaust Components: Stainless
Intercooler Core Size: BIG
Intake Manifold: Stock NB
Headwork: Stock NB head
Engine Management: Megasquirt3x
Other Spoolin' Helpers/Hurters: Wastegate spring only, lightweight flywheel out of the HM kit from FM
Trans & Rear End Ratio: 5-speed, 4.1
Rear tire size: 195/50/15

THIRD GEAR PULL:


RPM BOOST(PSI)
2000 0.6
2250 3.2
2500 4.9
2750 6.8
3000 8.0
3250 7.8
3500 7.3
3750 7.1
4000 7.1
4250 7.1
4500 7.3
4750 7.1
5000 7.1
5250 7.4
5500 7.9
5750 7.3
6000 7.5
6250 7.5
6500 7.5

Next thing will be EBC, it is wired in the the MS3x but have not used the option yet. And next run ill try 4th gear

3" exhaust is in the making

Update:

Engine: 01' 1.8L with functional VVT
Turbo: Precision 4828
Manifold: BEGI cast style with EGR
Downpipe Size/Style: Flyin' Miata turbine outlet with custom V-band outlet to custom 3" downpipe
Exhaust Size: Flyin' 3" custom pie-cut with Magnaflow 12578 muffler
Intercooler Core Size: Fab 9 stage 1
Charge Piping: 2.5" from turbo to throttle
Intake Manifold: Stock
Headwork: none
Engine Management: MS3x
Rear tire size: 225/45R15
Other helpers/hurters: closed loop EBC, still working on tune.

5th gear pull

RPM PSI

2109 1
2152 2
2271 3
2390 4
2550 5
2715 6
2940 7
3023 8
3142 9
3225 10
3335 11

https://www.miataturbo.net/attachmen...ine=1425862587

Here's mine:

Engine: 1.8 with 84mm Supertechs (9.0:1), BP4W head, BP5A intake cam, P&P, +1mm intake valves, stock-size exhaust valves.
Turbo: GTX2863R with .72 A/R EWG turbine housing
Manifold: FM
Downpipe: FM 3" with EWG merge at the bottom
Exhaust: FM 3" cat & muffler
Intercooler: FM (not sure of dimensions)
Intake manifold: 99/00 VICS with VICS operational
ECU: MSLabs MS3
Other: Skunk2 throttle body, 95 octane fuel
Tranny: 6-speed
Rear end: 3.636 Torsen
Tire size: 225/45R15
5th gear pull:

RPM KPA PSI
2050 115.6 2.3
2100 117.4 2.6
2150 118.3 2.7
2200 119.8 2.9
2250 121.3 3.1
2300 123.0 3.4
2350 124.5 3.6
2400 126.9 4.0
2450 128.9 4.2
2500 130.3 4.5
2550 132.0 4.7
2600 134.0 5.0
2650 135.9 5.3
2700 137.9 5.6
2750 139.8 5.9
2800 141.6 6.1
2850 143.2 6.4
2900 145.2 6.6
2950 147.0 6.9
3000 149.4 7.3
3050 151.3 7.5
3100 153.3 7.8
3150 155.5 8.2
3200 158.0 8.5
3250 161.2 9.0
3300 164.5 9.5
3350 168.7 10.1
3400 172.1 10.6
3450 177.8 11.4
3500 183.7 12.3
3550 189.7 13.2
3600 198.1 14.4
3650 208.0 15.9
3700 220.0 17.6

http://www.codrus.com/miata/fm2r/Apr...gear-spool.png

--Ian

Engine: '99 1.8L
Turbo: GT2860RS .86 A/R housing
Manifold: BEGi Log
Downpipe Size/Style: BEGi Stainless SGDP
Exhaust Size: 2.5" straight pipe, dump before rear axle
Intercooler Core Size: BEGi #2
Intake Manifold: Stock
Headwork: None
Engine Management: Brain's MS3x
Other Spoolin' Helpers/Hurters: FAB9 COPs, Siemens/Deka 550cc's (BEGi), DIY EBC, .035" oil restriction, TS Kompact BOV, foam air filter
Trans & Rear End Ratio: 6-speed, 3.909 LSD
Rear tire size: 205/50R15

FIFTH GEAR PULL:

RPM Boost(psi)

2500 0
2750 2.7
3000 4.3
3250 5.7
3500 7.5
3750 9.6
4000 12.1
4250 14.8

Oke got some new data, the old one was without boost controller


Engine: NA 1884cc forged
Turbo: TD04L
Manifold: Sturovo log
Downpipe Size/Style: 2.75"
Exhaust Size: 2.25
Exhaust Components: Stainless
Intercooler Core Size: BIG
Intake Manifold: Stock NB
Headwork: Stock NB head
Engine Management: Megasquirt3x
Other Spoolin' Helpers/Hurters: EBC, lightweight flywheel out of the HM kit from FM
Trans & Rear End Ratio: 5-speed, 4.1
Rear tire size: 195/50/15

FIFTH GEAR PULL:

OLD

RPM BOOST PSI
2000 0.6
2250 3.2
2500 4.9
2750 6.8
3000 8.0
3250 7.8
3500 7.3
3750 7.1

New
RPM BOOST PSI
1600 1.6
1750 3.1
2000 5.7
2250 8.1
2500 10.6

Very fast spool now, i hit 10 psi at 2425rpm


Virtualdyno tells me i hit 236hp@6258rpm and 320nm@3866, and at 3000rpm i already have 315nm

Added myself to the boost plot. Cant wait to run a 3" exhaust

https://www.miataturbo.net/attachmen...1&d=1429279471

Engine: Stock BP4W
Turbo: TD04L-13t
Manifold: Sturovo log
Downpipe Size/Style: 3.00"
Exhaust Size: 3.00"
Exhaust Components: 3.00" magnaflow Cat and 3" Big magnaflow rear muffler
Intercooler Core Size: Vibrant 12800, 26"W x 6.5"H x 3.25" Thick
Intake Manifold: Stock NB
Headwork: Stock NB head with exhintake
Engine Management: MSLabs Ms3 Basic
Other Spoolin' Helpers/Hurters: Stock subaru wastegate spring only (7PSI ?!?)
Trans & Rear End Ratio: 6-speed, 3.636
Rear tire size: 195/50/15

Fifth gear pull (uphill, Throttle floared @2k rpm):


RPM BOOST(PSI)
2000 2.1
2250 4.4
2500 6.0
2750 7.2
3000 7.4
3250 7.6
3500 7.9
3750 7.9
4000 8.1
4250 8.5
4500 9.0
4750 9.5
5000 10.3
5250 11.2
5500 11.8
5750 13.1
6000 Boost Cut!


Turbo was recently mounted, i've disconected EBC for boost creeping troubleshoot. Testing wastegate on site with a compressor: @7psi starts opening, @15psi is fully opened, no visible interference. Wastegate pre-loaded, just first half turn that doesn't aloud me to swing it by hand.

I'm on spark base map and only managed to tune fuel for now. Log print:





Can't figure why the boost fluctuation/rise up top, any sugestion?

Engine: NA 1800 supertech +1mm, ebay rods
Turbo: GT2560R
Manifold: 4 in 1, 2" runners equal lenght
Downpipe Size/Style: 2.75"
Exhaust Size: 3" straight pipe with magnaflow 3" silencer
Exhaust Components: Stainless
Intercooler Core Size: 550x140x65
intake line: 2" hot side 2.5" cold side
Intake Manifold: Stock NA 1.8
Headwork: diy ported
Engine Management: Rev ms2 enhanched
Other Spoolin' Helpers/Hurters: open loop EBC (74%), toyota cops, sequential ignition and injection, hondata heatshield gasket
Trans & Rear End Ratio: 6-speed, 3.636
Rear tire size: 195/50/15

sixt gear pull

wot at 2360rpm

rpm, kPa, psi
2360, 109.8, 1.4
2463, 122.0, 3.1
2563, 129.8, 4.3
2667, 136.2, 5.2
2761, 143.7, 6.3
2861, 152.8, 7.6
2965, 162.3, 9.0
3061, 173.6, 10.6
3166, 185.6, 12.4
3264, 196.8, 14.0
3295, 200.0, 14.5

https://www.miataturbo.net/attachmen...ine=1435662084

This is a comparison of my Begi T25/T28 churbo vs. my Garrett GT2554R

Engine: Stock 1.6L (203,000)
Turbo: Begi T25/T28 churbo VS Garrett GT2554R
Manifold: Begi directed pulses
Downpipe Size/Style: Begi modded to full 2.5"
Exhaust Size: 2.5"
Exhaust Components: Catless, Dynomax Race Bullet, minimal bends
Intercooler Core Size: 27" x 7.5" x 2.5"
Intake Manifold: Stock
Headwork: Stock
Engine Management: MS2PnP (Dyno Tuned)
Other Spoolin' Helpers/Hurters: EBC, LS Truck Coils, E85, 7lb Flywheel
Trans & Rear End Ratio: 5-speed, 3.9
Rear tire size: 225/45/15

FOURTH GEAR PULL: (WOT just before 2000 on flat, both pulls)

RPM PSI/PSI (Churbo/GT2554R)
2100 0.9/2.9
2200 1.3/3.2
2300 1.5/3.7
2400 1.5/4.2
2500 1.6/4.7
2600 1.7/5.4
2700 1.8/6.2
2800 2.0/6.9
2900 2.2/7.9
3000 2.5/9.1
3100 2.9/9.8
3200 3.5/10.6
3300 4.0/11.5
3400 4.8/12.4
3500 5.5/13.5
3600 6.9/14.4
3700 8.3/15.3
3800 9.0/14.8
3900 10.9/15.0
4000 12.6/15.0
4100 14.5/14.6
4200 14.6/14.6

As you could probably guess, the car is considerably more fun with the 54R.

Last updated spool until further mechanical improvements:

Engine: 01' 1.8L with functional VVT
Turbo: Precision 4828
Manifold: BEGI cast style with EGR
Downpipe Size/Style: Flyin' Miata turbine outlet with custom V-band outlet to custom 3" downpipe
Exhaust Size: Flyin' 3" custom pie-cut with Magnaflow 12578 muffler
Intercooler Core Size: Fab 9 stage 1
Charge Piping: 2.5" from turbo to throttle
Intake Manifold: Stock
Headwork: none
Engine Management: MS3x
Rear tire size: 225/45R15
Other helpers/hurters: closed loop EBC, still working on tune.

5th gear pull

RPM PSI

1997 1
2120 2
2227 3
2336 4
2495 5
2642 6
2791 7
2990 8
3075 9
3191 10
3278 11
3372 12
--- boost control solenoid comes out of "full closed" ---
3445 13
3496 14

Spool Data
 

Boost drops off after 3500rpm on 4th Gear pull

Engine: Stock 1.8 (150,000) 1996
Turbo: Garrett GT2560R
Manifold: FM log
Downpipe Size/Style: FM 2.5" to full 2.5"
Exhaust Size: 2.5"
Exhaust Components: Catless
Intercooler Core Size: FM2
Intake Manifold: Stock
Headwork: Stock
Engine Management: MS2PnP Enhanced Rev
Other Spoolin' Helpers/Hurters: 97 Oct Gas
Trans & Rear End Ratio: 5-speed, 4.1
Rear tire size: 195/50/15

FOURTH GEAR PULL: (WOT just before 2000 on flat)


1972 1.1
2208 2.9
2419 4.3
2607 5.9
2809 7.5
3006 9.0
3197 9.8
3409 9.5
3797 8.8
4201 8.6
4503 8.7

Thats slow for an 2560, my TD04l Spools faster, i hit 10 psi at 2500rpm

posting comments like this without data or mlv is pretty silly
post up or shut up

Couple posts up i already posted mine incl in the datasheet. But i see those are 5th gear pulls

I cant do it anymore because my car is totaled


I dont have any 4th gear pulls but got some 3th gear pulls. But it should spool faster in 4th gear. This was all with a cheap stainless steel exhaust not made for turbo but for N/A engine


THIRTH GEAR PULL

RPM PSI
1950 1.5
2105 3.0
2355 5.0
2496 6.8
2841 10.4

I'm talking about a log. Because anyone can say anything but it's difficult to fudge up a log.

Check this out:

My stock miata with a gt40r turbo strapped to it

THIRTH GEAR PULL

RPM PSI
1950 11.5
2105 23.0
2355 35.0
2496 46.8
2841 50.9

pretty impressive isn't it? ;)

Well then. Your td04 does not spool faster then, does it?

Also, since when does 6.8=10?

Finally, my monster 1.6 spools a t3/04 to 18 at 1800 rpm. Well, it would in 4th, if I hadn't never made it.

850 rpm = 8.6
1800 = 12.2
2800 = 38.645, for the transmission

18psi, see

Damn, I type too slow.

let's see the MLV.

when a 2.0L wrx takes til 2600 to make 10psi and you're claiming that on a BP (or B6?) with a simple log and 2.25 exhaust, I'm thinking you're being pretty optimistic


https://www.miataturbo.net/attachmen...ine=1456280850

https://fbcdn-sphotos-a-a.akamaihd.n...6b269472a4ec65

Or do you want the datalog itself?

Read, i already said that 10 psi at 2500rpm was in 5th gear, i dont have any 4th gear pulls but i posted a 3th gear pull above

Or wait, these can also be faked

let's see the log from the screen shot you just posted
I'm preparing to be impressed

Here is the log, car wasnt running good, looses to much power at top due top some boost leak.

And the last log in 2016 was better, first drive after long time because i had to fix some problems. A day later the car was totaled, so wasnt able to tune it better

ok now I'm impressed :likecat:

you get a +cat

I guess ebc at 100% duty til 2600rpm really helps even with a straw-like exhaust.

was it running CL boost control? did it ever hit cut?

Probably, EBC was a huge improvement after some tuning with the PID

Edit: yes closed loop. But hit cut? I dont understand exactly what you mean.

If i dont reply anymore im sleeping. Its 4 o clock at night overhere. So im really tired.. lol

Mine doesn't like sitting at 1800rpm in 4th gear it's a max 3rd gear rpm for mine really, it's a 5 speed with a 4.1 Diff. It feels like I'm setting off in 2nd gear from a stop for the first second or so. Or is that the same for everyone?

2560R, MBC, ARTech, with a bunch of my stuff n stuff. 3" pipe laid here. AFR's are less than desirable. Much less, but getting there...


https://www.miataturbo.net/attachmen...ine=1460426413


5th gear, steep incline hill.
PSI

1- 1600
2- 1880
4- 2500
6- 2845
8- 3050
10- 3230
12- 3440
14- 3725
16- 4060
17- 4190

Finally got the engine running in a new car, This time a 1999 NB

Same specs as in my NA except for the 3" exhaust and the new firmware, still can get the boost control settings right. little different with the bias settings.. Sometimes it overshoots and goes into overboost. My target at the moment is 200kpa. Will up that later when its running good Only drove about 2 hour total now


Engine: NB 1884cc forged
Turbo: TD04L
Manifold: Sturovo log
Downpipe Size/Style: 2.75"
Exhaust Size: 2.25
Exhaust Components: Stainless
Intercooler Core Size: BIG
Intake Manifold: Stock NB
Headwork: Stock NB head
Engine Management: Megasquirt3x
Other Spoolin' Helpers/Hurters: EBC, lightweight flywheel out of the HM kit from FM, 3" straight exhaust
Trans & Rear End Ratio: 5-speed, 4.1
Rear tire size: 195/50/15



4th Gear

RPM PSI

2197 -2.1
2278 2.2
2399 4.1
2504 6.0
2618 7.8
2732 10.1
2834 12.4
2918 14.4

Second run also 4th gear
2069 0.1
2137 2.1
2229 4.2
2409 6.6
2508 8.0
2602 10.0
2730 12.0
2834 14.6
2947 16.8
3125 20.3

Basic out of the box FM No electronics kit. 157K on original engine.
2000 NB 1.8
Turbo: Garrett 2560R
Manifold: FM log
Downpipe Size/Style: New style FM 2.5"
Exhaust Size: 2.5"
Exhaust Components: Stainless
Intercooler Core Size: FM Intercooler
Intake Manifold: Stock NB
Headwork: Stock NB head
Engine Management: FIC/6
Other Spoolin' Helpers/Hurters: TurboSmart MBC, TurboFuse, lightweight flywheel, FM,2.5" Highflow cat & turbo muffler.
Trans & Rear End Ratio: 5-speed, 4.1 (swapped)
Rear tire size: 195/50/15 BFG Comp-2s on 7.5" wheels.

4th Gear pull
RPM PSI
2458 1.1
2476 2.1
2557 3.0
2560 4.1
2687 5.2
2706 6.2
2758 7.0
2863 8.1
3127 9.0
3246 10.0 (hit speed limit)

Well both of those posts, seem to argue the 3" exhaust pretty well. Similar set ups, the 3" spools considerably faster.

Spool data 4th gear mx5 1994 1.8 TD04HL-16T Turbo from Volvo S60
 

4th gear 1994 miata 1.8 engine 5 speed
Turbo- TD04HL-16T from Volvo S60 T5
Small ebay intercooler
4.1 rear dif ratio, torsen
195/50 r15 tires
3" DP + 2.5" exhaust

MAT is in Celsius

Why has boost response never been measured here. As in steady state cruise at a given rpm/no boost to WOT/XX boost for say 1s. After that I don't care what it does. I'd like to see three standardized rpm points like 3500, 4500, 5500. The lag in boost returning after closing the throttle has been my personal litmus test, not how the boost build from a WOT roll on from low rpm. Why?, because the roll on is irrelevant. Who drives like that? Boost response after closing the throttle is how we actually drive it.

In 2006 when I had an intercooled GT2554R running on an emanage Ultimate with a 2.5" straight pipe, I datalogged it getting to 4-6psi in about 200ms and rising to 10psi in less than 1s at anyhing above about 3000rpm. Unfortunately I no longer have the program that opens those logs. Pretty much replicates. Andrew's posts from 2008

So if I am understanding you correctly Emilio, you are saying that we start out in 'x' gear at 3,500 on flat ground and step on it full throttle and measure the boost built in one second?

What gear do you propose? Maybe this should be a separate thread, or do you think it should be added on as a separate measurement on this one?

Maybe separate thread? I'm curious to see how the EFRs stack up against the best Garrett installations

I'll certainly give it a try at my first opportunity.

I am also curious to see if gear matters substantially at all. As this is a racing concern, what gear would you be in when you hit the throttle and needed instant (or as close to it) response?

If done on a dyno, I bet torque and HP would be nice to see along the same curve.

I think 3rd or 4th would be most relevant to track, maybe 2nd for autocross. So maybe 3rd, split the difference?

I agree. 3rd gear steady state cruise on a levelish road starting at 4000 rpm. Immediate WOT. 2-3 second log should be enough to see what we're after. Most turbo's should light pretty quick under these conditions. I second the start a new thread notion.

Do we measure from the the moment we go full throttle when the TPS hits 100% or from a steady state cruise lets say 10% tps and from there on?


from steady cruise TPS to 100% TPS is about 150ms on my logs

I think the log should start at some small TPS so maps is at lean cruise, say 45-65kpa. Go WOT and log for say 3s or so, just to show boost response.

I did some logs in 2 3 4 5 gear from 3500 and 4500 rpm. I will post them up tommorow

4th gear 3500rpm
0.2s 2.4 psi
0.3s 4.6 psi
0.4s 7.0 psi
0.5s 9.6 psi
0.6s 12.7 psi
0.7s 16.3 psi
0.8s 18.8 psi
0.9s 20.1 psi
1.0s 21.1 psi

4th gear 4500rpm
0.2s 5.6 psi
0.3s 9.8 psi
0.4s 14.7 psi
0.5s 18.4 psi
0.6s 20.7 psi
0.7s 21.6 psi

Precision 4828

4th gear (of 6) 3500rpm
0.2s 1.6 psi
0.3s 2.4 psi
0.4s 3.4 psi
0.5s 4.4 psi
0.6s 5.6 psi
0.7s 6.7 psi
0.8s 7.9 psi
0.9s 9.2 psi
1.0s 10.7 psi
1.1s 11.9 psi
1.2s 12.6 psi
1.3s 13.1 psi

Engine: '94 1.8L
Turbo: GT2560R
Manifold: 4 into 1 bottom mount (absurdflow style)
Downpipe Size/Style: Custom, bellmouth 3"
Exhaust Size: 3". No Cats, Big Maggie
Intercooler Core Size: Vibrant 550hp
Intake Manifold: Honda B18
Headwork: DIY Port, Nothing major, mostly cleaned up castings.
Engine Management: DIYPNP with EBC
Other Spoolin' Helpers/Hurters: LS2 coils, Siemens/Deka 750cc's (BEGi)
Trans & Rear End Ratio: 6-speed, 4.1 torsen
Rear tire size: 225/45R15

FIFTH GEAR PULL, FLAT ROAD:

RPM Boost(psi)

1983 0
2060 .9
2126 1.9
2142 2.7
2214 3.5
2283 4.3
2356 5.1
2407 6.0
2491 6.8
2566 7.7
2635 9.0
2739 10.4
2811 12.0
2930 14.1
3032 16.4
3141 18.9
3296 21.0
3371 21.5


https://cimg2.ibsrv.net/gimg/www.mia...3b5d79044b.jpg
https://cimg7.ibsrv.net/gimg/www.mia...93b6dc0459.jpg

^Turbine housing A/R?

.64 hotside. Normal 2560 off an s15.

Proof of concept build in preparation for a 1.8L w/VVT or BP4W (undecided, have both) swap, Compounded
Boost control is still a work in progress ...

Engine: '91 LNC 1.6L stock bottom end
Turbo: GT2871 48 trim Churbo - will get GTX2867R back on there early 2017
Manifold: FM 1.6l
Downpipe Size/Style: Begi long tube NA2 divorced
Exhaust Size: 2.25" Roadstersport 2, Magnaflow Cat
Intercooler Core Size: TC stage - ebay/CXRacing 28"X5.5"X2.5", SC - Uber FMIC
Intake Manifold: Stock 1.6l
Headwork: DIY Port/Polish/deshroud/combustion chambers, Supertech 1mm OS intake, Supertech stock ex, 5-angle seat cut
Engine Management: MSPNP2 v1.2
Other Spoolin' Helpers/Hurters: 5280ft alt (~85kPa amb.) Compound GT2871 w/OA2076 twinscrew - tons of mods and complicated stuffs
Trans & Rear End Ratio: 5-speed, 4.1 torsen
Rear tire size: 205/50R15

FORTH GEAR PULL, FLAT ROAD:

RPM MAP (kPa) TC Out (kPa) Boost (PSI)
1471 136.6 88 7.8
1596 149.5 95 9.6
1745 163.6 104 11.7
1872 176.9 109 13.6
2000 189.5 114 15.4
2112 201.6 119 17.2
2245 209.8 131 18.4
2362 214.1 139 19
2454 217.3 145 19.5
2577 211.5 155 18.6
2677 210.4 157 18.5
2777 213.4 162 18.9
2898 210.5 166 18.5
2969 213.4 165 18.9
3097 207 168 18
3186 214 183 19
3267 208.1 186 18.1
3268 208.9 186 18.3
3387 208.6 183 18.2
3460 212.3 182 18.7
3563 203.8 178 17.5
3638 209.4 170 18.3
3773 206.8 172 18

Manifold Pressure

https://cimg5.ibsrv.net/gimg/www.mia...ad7164a9d6.png4th Gear, 1.6 Compound, Manifold
"Crankcase Pressure" is the Turbo outlet pressure - need more DAQ channels

https://cimg7.ibsrv.net/gimg/www.mia...3dd9b62ea1.png4th Gear, 1.6 Compound, TC out

Engine: 04 Mazdaspeed Miata 1.8L
Turbo: Stock IHI of an MSM
Manifold: Stock
Downpipe Size/Style: Flyin Miata catless downpipe
Exhaust Size: 2.5" Enthuza Catback
Exhaust Components: 2.5" FM Catless Downpipe to 2.5" Enthuza catback
Intercooler Core Size: Flyin Miata Intercooler
Intake Manifold: Stock
Headwork: Stock
Engine Management: MS3e
Other Spoolin' Helpers/Hurters: EBC
Trans & Rear End Ratio: 6Spd/ 4.1
Rear tire size: 225/45/15 RS3

5th GEAR PULL

RPM/PSI

2016 .09
2199 2.8
2438 3.3
2652 4.1
2860 5.0
3010 5.7
3250 8.1
3450 9.6
3563 10.9
3675 11.9
3802 12.8

Engine: 05' 1.8L VVT
Turbo: Garrett sr20 T25
Manifold: Flyin' Miata cast manifold
Downpipe Size/Style: Flyin' Miata elbow & downpipe
Exhaust Size: 2.5" Magnaflow 12576
Intercooler Core Size: 19.5"x6"x2.5" (CXRacing)
Charge Piping: Flyin' Miata 2.5" piping kit
Intake Manifold: Stock (Squaretop)
Headwork: none
Engine Management: MS3 Basic
Rear tire size: 205/45R16
Other helpers/hurters: Open Loop EBC, slight uphill.

5th gear (1:1), 4.1 6 speed
PSI RPM
1 1850
2 1900
3 1950
4 2000
5 2160
6 2275
7 2400
8 2500
9 2590
10 2675
11 2750
12 2800
13 2870
14 2950

I can almost feel my rods suffer.

https://cimg7.ibsrv.net/gimg/www.mia...1b3d36cb3c.png
Engine: '94 1.8
Turbo: Holset HX27
Manifold: Tubular low mount mild steel.
Downpipe Size/Style: 3" bugger all downwards angle
Exhaust Size: 3"
Exhaust Components: Small Magnaflow and then a big Magnaflow
Intercooler Core Size: 550x180x65 (21x7x2.5) 2.5" intercooler piping
Intake Manifold: Stock
Headwork: nil
Engine Management: Link G4+
Other Spoolin' Helpers/Hurters: Honda K20 COPs NGK PFR7B-9 plugs
Trans & Rear End Ratio: 6-speed, 4.1 LSD. Pull done in 5th gear
Rear tire size: 225/45 R15

Interested to see dyno.

Interesting. I hunted for an hx27 for a while. Never came up with one. How much power at that boost level?

https://cimg6.ibsrv.net/gimg/www.mia...145d4c4930.png
We have a company here in New Zealand called Motorsport Engineering who supplies Holset turbos. They can put a Holset core into pretty much anything, mostly into china chargers after they shit their seals. He also can custom spec turbo's to suit whatever you want.

So 250whp in American power. I have no idea to read that torque units.

Dynapacks like to plot the torque at the axle, if you want it at the crank divide by the total gear ratio (probably 4.1, assuming the pull was done in the 1:1 gear).

--Ian

The way the tuner said the dyno works out torque is the torque at the wheels divided the diff ratio then times 1.1 for drivetrain loss. So you end up with 262FtIbs

See Also #221 for waste gate only:

Engine: 1999 Stock
Turbo: TD04L-13T
Manifold: Custom Log
Downpipe Size/Style: Segregated 2.5" to 2.75"
Exhaust Size: 2.75" to 3"
Exhaust Components: High Flow Cat & Magnaflow Muffler
Intercooler Core Size: 25 x 5.5 x 2.5
Intake Manifold: Stock
Headwork: None
Engine Management: Megasquirt MS3-Basic
Other Spoolin' Helpers/Hurters: EBC set at 180kPa (12PSI)
Trans & Rear End Ratio: 5-speed, 4.3 LSD
Rear tire size: 195/50-15

FOURTH GEAR PULL:

RPM Boost(psi)
1980 0.4
2000 1.3
2250 5.4
2500 8.8
2750 11.2
2850 12.3

Flat until setting increases at 5K

3rd gear takes to 3250RPM to make 12PSI

Lag RPM's are off due to typical Stock Tach error

At 3240 RPM

Seconds / psi
0 about 20mm vacuum
0.25 0.0
0.45 2.2
0.60 4.1
0.65 5.4
0.75 8.0
0.85 9.7
1.00 11.7
1.06 12.9

At 4460 RPM
0 About 20mm Vacuum
0.20 0.0
0.33 2.8
0.40 5.2
0.54 10.5
0.60 13.4

Engine: '92 1.6 218k miles, untouched
Turbo: Garrett 2554r
Manifold: Flyin' Miata cast manifold
Downpipe Size/Style: Flyin' Miata elbow & downpipe
Exhaust Size: 2.5" catless custom exhaust, copy of stock route
Intercooler Core Size: 19.5"x6"x2.5" (CXRacing)
Charge Piping: full 2.5"
Intake Manifold: Stock 1.6l
Headwork: none
Engine Management: mspnp2
Rear tire size: 205/45R16
Other helpers/hurters: MBC
4th gear on a 5 speed
Kpa PSI RPM
110 1.45 2043
120 2.90 2213
130 4.35 2399
140 5.80 2591
150 7.25 2734
160 8.70 2905
170 10.15 3062
180 11.60 3213
190 13.05 3450
195 13.78 3678

http://i67.tinypic.com/333ycuc.png

^ pretty decent on that 1.6.

Just installed ebc last night, will log some data this weekend. Exited to see how much E85 improves time as well