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1 Attachment(s)
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1 Attachment(s)
'92 motor... taken from a granny-driven 258k mile car... stock internals.
SR20det T25 Megaquirt (standalone by Brain) Last dyno made 200whp/185ftlbs. Since then, I've swapped to COPS and added 6* of timing across the board. Feels a bit faster now and only running 12psi daily. Butt dyno says I'm making 200whp@12psi. Problem is my T25 spikes to around 14.5psi and settles to about 12psi at redline. I've bumped up the EBC a lot and it just won't hold the boost up high. Could be a wastegate or flow issue... but if the damn thing would hold 14psi to redline, it's make 220whp or so. My 2.25" Borlas don't help. Every day this motor continues to run is a blessing from the Boost God. Attached is my last run... actually hit 202whp on the previous run, but this one had the final "tune" on it. Bumpy AFR in the midrange was a product of a poorly tuned Accel Enrichment table... current datalogs show board-straight AFR's through there. |
Me....about the # same as Sam using a hybrid Greddy kit.
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271 @ the wheels ... but it lasted only about 4 years lol
stock 1.6L BEGI cast manifold Ford SVO T3 3" DP / full exhaust Custom IC Tec II RC 500's Vishnu Rail Here comes the new rods/pistons :) |
Looking at this poll, over 51% of us here are wimps...no wonder they think we is gayz!!!
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Originally Posted by Marc@M-Tuned.com
(Post 252667)
I made 360hp on a stock 95 BP and ran it for 8 months like that.
Was using a custom Turbo setup with a T3/T4 50 Trim. 18-19psi. 3" Exhaust FJO 341B ECU (Also did the same on a TECII) Max RPM was 7650. More and I would blow Oil pumps. Trying to decide how much I want to push my 2000 Engine with the Megasquirt. I don't like swapping motors when I have a car with A/C, PS, ABS etc.. :fawk: |
No Meth! Stock T-Body and Intake for part of it and BEGI and 70mm for another part. Most was stock Intake! Rings never went bad, I sold the engine to a local guy running good!
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Marc, was that dyno on pump gas? (110 from a pump doesn't count :p)
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Sunoco 94
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Awesome. That dyno makes me feel better about the BP internals :p
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Originally Posted by Marc@M-Tuned.com
(Post 289077)
Sunoco 94
It would be easy to extrapolate that you could hit 400rwhp with a NB 1.8 motor (given its far better head and cams) if you ran the same intake, turbo setup & boost and exhaust as your 1995 1.8. However, I don't know if the better flowing NB head will make up for the fact that the '00 motor has higher static compression than the NA motor (per Randy @ Solo Miata, '95 was 8.8 compression vs. 9.5 for '00) and is probably less tolerant of both boost and timing when you exceed 12 psi. If your engine management system can SAFELY log knock counts, you can do some optimization runs (third gear pulls on "safe" roads or 4th gear on a chassis dyno) to see if less boost (15psi with more timing) gives more usable street power than more boost (18psi with less timing). Then again, it's relatively easy to run a 50/50 water/methanol system that will allow you to run 18-19psi of boost with "good" timing. It may be pain to keep re-filling the meth container but detonation (stock Miata ring lands and rods quickly expire when detonation occurs at high boost) won't be a problem and your street tires should enough of a "fuse" to protect the stock trans and rearend for normal street driving. :) |
I'll post in a week or two when my car gets tuned with the AEM EMS. Hoping for 270-280whp on the stock motor.
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Originally Posted by ray_sir_6
(Post 289454)
I'll post in a week or two when my car gets tuned with the AEM EMS. Hoping for 270-280whp on the stock motor.
Looking forward to seeing another strong 1.6 motor! Which TD04 variant are you running on your Greddy setup and with how much boost??? |
never dynoed mine, because i don't give a damn
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Originally Posted by Marc@M-Tuned.com
(Post 254623)
Sorry.... I disagree :) Our engines are built for a ton of power. Every Miata needs 250hp. I miss my old 350+ setup like mad.
WIMP!! :giggle: Once I get a 6 speed and build my spare block I plan to upgrade the compressor and see how much power I can make on the stock head/block before it pops. |
Originally Posted by sn95
(Post 289649)
Hey Ray,
Looking forward to seeing another strong 1.6 motor! Which TD04 variant are you running on your Greddy setup and with how much boost??? |
1 Attachment(s)
Stock 94 1.8 block
151,000 original miles 51,000 boosted miles Begi manifold/dp GT2560R @ 15 psi's Link ems Attachment 211031 |
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Well, got the car on the road and running WG 5.5psi with a safe tune right now.
Attachment 211016 A/F is hovering around 10.8-11:1. We'll get it closer to 11.5:1 when we hook up the boost controller and turn up the boost. I am still amazed that I got almost 190whp from 5.5psi, without even touching the cam gears. My tuner said we could probably play with the cam gear and get it up to 200whp. We'll worry about that when we get the boost turned up, which might happen tonight. :P |
might as well update:
311hp/260ftlbs on stock 99 motor. |
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