Miata Turbo Forum - Boost cars, acquire cats.

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-   DIY Turbo Discussion (https://www.miataturbo.net/diy-turbo-discussion-14/)
-   -   It's alive! ALIVE! OMG BOOST, DO ME HARD (https://www.miataturbo.net/diy-turbo-discussion-14/its-alive-alive-omg-boost-do-me-hard-19997/)

Braineack 04-23-2008 09:17 AM

It's alive! ALIVE! OMG BOOST, DO ME HARD
 
Tune sucks ass, but it drives. Feels like accel is kicking in, but i have it off, now it seems when the fans kick on it stalls when i press the clutch in ;) At least I can drive it.

http://www.boostedmiata.com/new_miat...inished001.jpg


http://www.boostedmiata.com/new_miat...inished002.jpg


http://www.boostedmiata.com/new_miat...inished003.jpg


http://www.boostedmiata.com/new_miat...inished004.jpg

levnubhin 04-23-2008 09:23 AM

Sweet deal man. Must feel good to be (sorta) back.
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Rishi 04-23-2008 09:43 AM

Good to see it back on the road. I am sure your are (somewhat) relieved to get it (sort of) running.

Zabac 04-23-2008 09:57 AM

it even looks as if it settled a bit, congrats, i know the feeling (sort of)

Rafa 04-23-2008 10:14 AM

To the casual observer, you haven't changed cars!

Looking good!

ZX-Tex 04-23-2008 10:18 AM

Awesome. I like the wheels and the exhaust.
Exhaust questions:
1. Did you fabricate it yourself?
2. Reason I ask is I am thinking about doing the same. It looks like you used the following:
- 2.5"(ish) to 3" adapter at the DP flange
- 3" straight run to the diff
- 45 deg 3" mandrel elbow at the diff
- 90 deg 3" mandrel bend to the muffler
- something like a 10-15" Magnaflow
- can't see it in the picture but presumably another 90 deg 3" from muffler to bumper
Is this about right?

Braineack 04-23-2008 10:20 AM

It's an Enthuza exhaust, I had to get rewelded since I smashed it up.

the midpipe has two mandrel bends on either end, the axle back is simply two 90° bends.

supra441979 04-23-2008 10:52 AM

Scott, I thought you sold your car? :dunno:

MX5-4me 04-23-2008 10:56 AM


Originally Posted by supra441979 (Post 246393)
Scott, I thought you sold your car? :dunno:

Go look at that thread and see what the date was.

cjernigan 04-23-2008 11:27 AM

Looks great, not sure how its so clean, guess that is another benefit of having a garage. Mine is a disaster right now due to pollen, leaves, and other crap in the air. They did a good job on the exhaust repair as well.

coastertrav 04-23-2008 11:39 AM

Thats bad ass man!

That car looks like it just came of the lot. The paint is amazing for a car in it's teens.

bripab007 04-23-2008 11:46 AM

I thought you got rid of the Miata and bought an Altima or some shit. :giggle:

Splitime 04-23-2008 12:10 PM

Needs more hood vent.

musanovic 04-23-2008 12:22 PM

really like the exhaust

Braineack 04-23-2008 01:07 PM

three more....

http://www.boostedmiata.com/new_miat...inished005.jpg


http://www.boostedmiata.com/new_miat...inished006.jpg


http://www.boostedmiata.com/new_miat...inished007.jpg

it's been repainted...it's not so hot up close, at least 50 door dings have been painted over....it's a beautiful 20 footer.

no i didnt sell it, that was an april fools joke....i even posted that :)

although i do miss my coushy leather seats and smooth mounts and p/s and motor windows....

bripab007 04-23-2008 01:28 PM


Originally Posted by Braineack (Post 246487)
no i didnt sell it, that was an april fools joke....i even posted that :)

Dude, I know ;)

Well this new car definitely looks hot from the distance at which you took the photos. Congrats on getting back in the saddle!

levnubhin 04-23-2008 02:14 PM

Scott, what size are your wheels/tires?
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Braineack 04-23-2008 02:28 PM

16x7.5 +38 205/45/16

ZX-Tex 04-23-2008 02:41 PM


Originally Posted by Braineack (Post 246532)
16x7.5 +38 205/45/16

Has the car been lowered from stock?

Braineack 04-23-2008 02:44 PM

koni shocks on top perch and FM springs....it used to be much lower but with all the shaved weight it sits much higher. oh well.

levnubhin 04-23-2008 02:50 PM

I thought they were 16's.
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kotomile 04-23-2008 02:51 PM

Looks great! From the back view it looks a lot like mine! (same color, same wheel style, same exhaust, hardtop, etc.)

Braineack 04-23-2008 03:03 PM


Originally Posted by levnubhin (Post 246548)
I thought they were 16's.



16x7.5 +38 205/45/16
:confused:

ZX-Tex 04-23-2008 03:07 PM


Originally Posted by Braineack (Post 246542)
koni shocks on top perch and FM springs....it used to be much lower but with all the shaved weight it sits much higher. oh well.

Just wondering if those tires and wheels would fit a NB that had been lowered about 1" (Tein Basics) with no fender rolling.

levnubhin 04-23-2008 03:10 PM


Originally Posted by Braineack (Post 246559)
:confused:

As in oh I thought so.
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99NBMia 04-23-2008 03:39 PM


Originally Posted by ZX-Tex (Post 246562)
Just wondering if those tires and wheels would fit a NB that had been lowered about 1" (Tein Basics) with no fender rolling.

should be fine:)

Braineack 04-23-2008 03:44 PM

haha, actually I just went out with a ruler and they seem to be 16x8.5 +37

99NBMia 04-23-2008 03:58 PM


Originally Posted by Braineack (Post 246585)
8.5

:jerkit:

Braineack 04-23-2008 04:22 PM


Originally Posted by 99NBMia (Post 246593)
:jerkit:


dunno exactly where to measure from, but when i line it up to the inside of the inner lip (where the tire mounts against), and then to about the same spot on the other end, it's 8.5" give or take....hard to tell might be 8" but from what i can research they came in 16x8.5 not 16x8. also at 16x7 205s, from what ive been seeing online, look like the bubble out more, not a slight stretch to them. this is news to me, i really wanna know.



http://www.boostedmiata.com/new_miat...re_outside.jpg

http://www.boostedmiata.com/new_miat...ure_inside.jpg


the 4 stickers that would end the debate were painted...ill try to remove and scrape off the paint tomorrow.

cjernigan 04-23-2008 04:25 PM


Originally Posted by ZX-Tex (Post 246562)
Just wondering if those tires and wheels would fit a NB that had been lowered about 1" (Tein Basics) with no fender rolling.

6ULs will.

Newbsauce 04-23-2008 04:41 PM


Originally Posted by cjernigan (Post 246610)
6ULs will.

6ULs will also run you 1k vs those cost me 250 with new tires :)

Braineack 04-23-2008 04:43 PM


Originally Posted by Newbsauce (Post 246627)
6ULs will also run you 1k vs those cost me 250 with new tires :)

hey me too ;)

kotomile 04-23-2008 04:57 PM

I like the car in sig thing too, Brain. Would you mind if I copied you?

Braineack 04-23-2008 07:32 PM

k confirmed, 7.5" they still measure like 8.2" inner lip to lip... but this concludes the debate:

http://www.boostedmiata.com/new_miat...wheel_size.jpg

miatamania 04-23-2008 07:36 PM

so...clean...

sbrian2 04-23-2008 08:31 PM

Wheels always measure wider from lip to lip that what the are specified as.

Braineack 04-23-2008 08:52 PM

awesome, one more picture!

http://www.boostedmiata.com/new_miat...inished008.jpg

http://www.boostedmiata.com/new_miat...inished009.jpg

ZX-Tex 04-23-2008 10:10 PM

I like that front lip, looks good.
The mt.n sticker is a nice touch. Though, now that I think about it, we should make you print out a HUGE version of the one at the top of the page and make you install it on the rear window :giggle: Your penance for making us suffer with that ghey logo. Funny, but ghey.

Braineack 04-24-2008 02:18 PM

OMG i love boost. seeing 8.2psi on my log so far. Porting the wastegate helped with creep now i just need to grow some balls and take it wot. Tune is much better, changed a few settings and it's almost as good as it was.


funny note: New IC is working great, barely seeing a rise in temps; only 3°F on that 8psi pull to 6k, however, my CLT temps are higher :rofl:

macanha 04-24-2008 02:34 PM

wouuu . the car look so pretty.! no scratch at all.!
congratulations scott .! well, now I have to say, all last for the moment I CAN BEAT YOU.!!. haha .!

devin mac 04-24-2008 02:51 PM


Originally Posted by Braineack (Post 247102)
funny note: New IC is working great, barely seeing a rise in temps; only 3°F on that 8psi pull to 6k, however, my CLT temps are higher :rofl:

you're basing the IC effectiveness on air temp at idle vs temps seen during the 8psi pull, right? no before/after air temp guages, etc?

kotomile 04-24-2008 02:58 PM


Originally Posted by devin mac (Post 247125)
you're basing the IC effectiveness on air temp at idle vs temps seen during the 8psi pull, right? no before/after air temp guages, etc?

I think he's comparing the rise in temp to his older, smaller intercooler.

Saml01 04-24-2008 02:59 PM


Originally Posted by Braineack (Post 247102)
OMG i love boost. seeing 8.2psi on my log so far. Porting the wastegate helped with creep now i just need to grow some balls and take it wot. Tune is much better, changed a few settings and it's almost as good as it was.


funny note: New IC is working great, barely seeing a rise in temps; only 3°F on that 8psi pull to 6k, however, my CLT temps are higher :rofl:

Two questions.

1. Do you have pictures of your wastegate port? I know you did it yourself.
2. What kinda CLT temp difference are you seeing and when, cruise or boost?





Originally Posted by devin mac (Post 247125)
you're basing the IC effectiveness on air temp at idle vs temps seen during the 8psi pull, right? no before/after air temp guages, etc?

Probably between cruise and boost.

Braineack 04-24-2008 03:02 PM

on my last car i was seeing more like 170-180 cruise, now im seeing around 190 cruise and the fans are coming on more often. i did block about 75% of the radiator, where before it was more like 40%. plus i still have my license plate in the way

based on my old logs, the IC does a better job, but as i suspected at the cost of the cooling system, hence why I'm making an extractor hood.

pics of wastegate port:

http://www.boostedmiata.com/turbo/wa...e/CIMG1365.JPG

http://www.boostedmiata.com/turbo/wa...e/CIMG1366.JPG

http://www.boostedmiata.com/turbo/wa...e/CIMG1367.JPG

enlarged it 15%, .88" to .92" IIRC, and added a small channel to help the flow.

Braineack 04-24-2008 03:05 PM


Originally Posted by devin mac (Post 247125)
you're basing the IC effectiveness on air temp at idle vs temps seen during the 8psi pull, right? no before/after air temp guages, etc?

well since i know the temp just before i boost it, it's kinda like that. 82° before boost, 86° at 6k and 8.2psi....never saw such a low rise before. FWIW, I used to see a 17-20°F delta with my old IC at 12-13psi....so i just need to man up and start tuning boost and taking more logs.

Saml01 04-24-2008 03:09 PM


Originally Posted by Braineack (Post 247134)
well since i know the temp just before i boost it, it's kinda like that. 82° before boost, 86° at 6k and 8.2psi....never saw such a low rise before. FWIW, I used to see a 17-20°F delta with my old IC at 12-13psi....so i just need to man up and start tuning boost and taking more logs.

Pretty cool. Im curious to see the delta at that boost level though.

I dont remember, but you had to sac your AC to fit that IC right?

Also, did you do the port with a die grinder on the inside? What did you drill the hole with? Press?

miatamania 04-24-2008 03:11 PM

You just need to build a motor and stop worrying about blowing things up...;)

At least your shit is in the car though.

m2cupcar 04-24-2008 03:19 PM

Extractor will fix that temp rise :D

levnubhin 04-24-2008 03:22 PM

Get that scoop installed already. Im curiuos as to how much a difference you see.
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Braineack 04-24-2008 03:22 PM


Originally Posted by Saml01 (Post 247137)
I dont remember, but you had to sac your AC to fit that IC right?

Nope, still have a/c. see my build thread. or check my site under new_miata/intercooler


Also, did you do the port with a die grinder on the inside? What did you drill the hole with? Press?
Dremel with die grinder bit. maybe 20 minutes worth of working, checking with a digital caliper as the work progressed.

Braineack 04-24-2008 03:26 PM


Originally Posted by miatamania (Post 247140)
You just need to build a motor and stop worrying about blowing things up...;)


built motors are bandaids for not knowing how to tune. :noob:

Saml01 04-24-2008 03:28 PM


Originally Posted by Braineack (Post 247153)
Nope, still have a/c. see my build thread. or check my site under new_miata/intercooler



Dremel with die grinder bit. maybe 20 minutes worth of working, checking with a digital caliper as the work progressed.

May I just say again, I love that site of yours. Could use better navigation but its still pretty awesome. I couldnt find the IC in there first time around.

You got the hole that round with a die grinder, impressive.

If my shit creeps, I may just have to follow in your footsteps.

devin mac 04-24-2008 03:34 PM

you don't have a coolant reroute, do you, brain? i need to do something either in that department or an extractor hood soon. cruising on the highway last weekend, after about 30min at 4krpm, my temp guage needle was sitting probably 2/3 of the way up. i wasn't logging at the time, so i don't know exactly what it was, but i didn't like seeing the guage there, since i'm used to seeing it between 1/3 and 1/2 mark, as far as sweep is concerned...

Braineack 04-24-2008 03:48 PM

once the fans kick on, im fine. and yes i have an extractor hood in the works. no coolant reroute bullshit :) im not overheating, just normals operating temps seem higher than my previous setup, which is fine.

Saml01 04-24-2008 03:49 PM

I seriously have to figure out this CLT sensor stuff on my car, im still letting it peg at 215. Thats def not gonna be good with a turbo on the engine.

m2cupcar 04-24-2008 03:53 PM


Originally Posted by Braineack (Post 247157)
built motors are bandaids for not knowing how to tune.

:bowrofl:

Were you fixing boost creep with the port job? did it work? notice any difference?

levnubhin 04-24-2008 03:54 PM


Originally Posted by Saml01 (Post 247172)
I seriously have to figure out this CLT sensor stuff on my car, im still letting it peg at 215. Thats def not gonna be good with a turbo on the engine.

Damn, my water temps peg 220 with turbo and thats only if im sitting still for too long. The hood deff helps but I think my fans are the weak point.
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Saml01 04-24-2008 03:57 PM


Originally Posted by levnubhin (Post 247177)
Damn, my water temps peg 220 with turbo and thats only if im sitting still for too long. The hood deff helps but I think my fans are the weak point.

No No, you dont get it papi.

My MS reads the temp off the sensor wrong because the resistance values or bias resistance value is incorrect. There seems to be some confusion with the 96/97 cars in terms of that.

Braineack 04-24-2008 04:00 PM


Originally Posted by m2cupcar (Post 247175)
:bowrofl:

Were you fixing boost creep with the port job? did it work? notice any difference?

yeah, wastegate was hitting 10psi at 3600rpm before and rising to something like 14psi at redline. I haven't made any WOT pulls, but from what i can tell the creep is gone....EBC map will be the best test. I was dropping the 0% DC at redline :rofl:

99NBMia 04-24-2008 04:36 PM


Originally Posted by Braineack (Post 247157)
built motors are bandaids for not knowing how to tune. :noob:

LOL so true... (Says the guy who is running stock management while building his MSII:crx:).

levnubhin those temps seem high...I never see above 212 on my Scangauge even when beating on it. This is with stock cooling as well, should drop even more with the oil cooler installed.


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