1.8 build GTX2867 Dyno
 

328hp / 291.3 lb/ft at 16.6 psi
https://cimg9.ibsrv.net/gimg/www.mia...294c5ffcf3.jpg

I have an EFR 6758 waiting to go in so i will have a Garrett Vs BW in the near future.

Details on engine and other components, please.

NB1 99 motor with wiseco pistons and eagle rods, acl bearings and arp studs.
Coolant reroute form skidnation. And thermostat 180F
Completely stock head.
Custom equal length tubular top mount exhaust mani
Gtx 2867 gen1 IWG with a turbosmart twinport actuator
R8 ignition coils custom wiring harness for wasted spark. ( ms2pnp does not support sequential spark)
Custom 3 inch downpipe and 3 inch exhaust.
Energy intercooler 2inch inlet 2.5 inch outlet.
hks ssqv bov
MS2pnp
AEM AFR
Prosport gauges for boost and water temp
APEXi AVCR boost controller
Walboro 255
New id 1050x injectors
Fuelab FPR with stock fuel rail.
6speed with a stock 1.8 flywheel and a custom 6 puck cluch
Torsen diff with a 3.6.
Bilstein pss9
TSE 11.75'' 4piston dynapro BBK
JR 19 wheels 16'' with 595 RS-R.195 front and 205 rear.
Roll bar, frame rails, Racing beat front and rear anti-roll bars,BeatRush PPF brace.
Carbon miata hood and trunk
A quick release deep dish steering wheel and a gutted driver's seat. I am 6.1
Power steering and A/C working good

I have a build thread

https://www.miataturbo.net/build-thr...ld-noob-96085/

Thanks for the details. I'm a fellow GTX2867R owner and think I may have been making slightly more power than the virtual dyno predicted. This may explain the damaged 6 speed I'm going to have to change.

No prob m8. Happy to give back for all the reading i have done here :)

What Hotside do you have? Mine is .64. How much boost do you run?

We made 455whp @30psi on a stock vvt motor, strengthened only. GTX2867R 0.86 GenII

Dann

.86 hotside, tubular Artech manifold, ported NA8 head, stock cams, 3in downpipe and exhaust, about 20psi

I'm going there when I get my BMW transmission

Dont know if this will work but heres a 10 second video of the pull.

I cant get it off facebook Ill youtube it later and embed it.


Dann

After 20 edits... I cannot get it to embed... Aaaaaaand... now it works, you just paste the whole desktop URL in and it does it automatically..

So its an Absurdflow style low mount, 3" system with cat and mufflers, ebay intercooler 210mm tall, same one as used in MSM's but 210 instead of 140mm tall. ID1300s, and we taper the boost on to keep peak torque around 300-320ftlb. I think this was a 3000-8000rpm run.




Dann

Holy crap, I'm leaving a lot of power on the table. Please tell me what fuel and share a shot of your timing map so that I may be enlightened.

I need to ditch these small NA8 cams, head, and intake manifold...

It is a dead stock VVT. 10:1 supertechs, supertech heavy doubles, Manley Rods, Boundary Stage 2, and ATI damper. Pump E85.

Outside of that Ill show you photos of the bolt ons and the timing table. Dyno is an oldschool analog Dyno Dynamics, in shootout mode, however shootout is supposed to have the temp sensor at the filter and we always run it just in the room.

https://cimg8.ibsrv.net/gimg/www.mia...6249d2cfaa.jpg
https://cimg0.ibsrv.net/gimg/www.mia...01c0b683db.png
https://cimg1.ibsrv.net/gimg/www.mia...f270b1038f.jpg
https://cimg2.ibsrv.net/gimg/www.mia...1c353e9f92.jpg
https://cimg8.ibsrv.net/gimg/www.mia...1458ab74b6.jpg


Ignore that circle, just had that pic and thought I would share the downpipe design (it's a different engine and stuff but the same manifold and downpipe). And yes, internal gate. And yes, it really has a cat and muffler etc

Dann

Manual brakes really clean up that corner. Your exhaust guy is top notch, guess he's in for some more work when the 6758 gets in.

How's the duty on the 1300s at that power level, you making the bump to 1700s with the BW?

We made 450whp comfortably with the ID1300s. That red car has a dead stock NA return fuel system apart from intank Walbro 340 and ID1300s.

Dann

Come over to the dark sideee. Now that you're balling with a BMW trans... the least you can do is get a head from the last 2 decades!

I've got supertech light doubles, Boundary Engineering pump, Artech tubular top mount, 3in downpipe and exhaust with no cat, 8.6 pistons, forged rods, ported NA8 head, stock valves, but I'm running pump 93 octane.

The fuel will be holding me back from going up to 30psi unless I go to e85, I guess.

FYI: most people on this site mention horsepower at the wheels - which is 248,2 in your case. Europeans are more used to horsepower at the crank (i.e. horsepower at wheels with a correction).

So you think his 328 is 248? That's quite a lot of correcting.

Think so. The greek word τροχού means wheel. Agreed that is seems like a pretty significant correction - 20-25% seems to be more common.

I am not going to discuss about hp to the crank or to the wheels. The correction factor is way off.

328 on 16.5 psi is a normal number for this turbo Imho. I dont think that garrett's declaired hp number for the gen1 gtx2867 wich is rated for max 470 if i remember correctly, is whp. It is 470HP.

Soooo when guys here output 415 whp on a 6258BW with a .64 turbine housing which is rated for max 450hp(not WHP) that sound right to you?