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Do it Jay:)
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Originally Posted by faeflora
(Post 606996)
stock vs modified Intake + TB + intake piping makes sense. I'd pay $100 for the comparison. That would be worth the r&d time to me. Preferably on a larger frame higher boost setup like yours.
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Wow, lots going on here.
The very simple point to my post was that I believe the OP can have his turbo spool up much quicker that it is in that plot. As for my mountain shaped TQ curve, well, thats how it is. That is with a gutted 99 intake manifold. The TQ drops pretty quickly, but the HP continues much better than it did witht he IM in stock form. I gained about 1000rpm more or usable hp. |
1 Attachment(s)
theres lots more to be had from that engine, thats for sure, my "laggy" 3076 goes to almost peak tq, at just over 4k, and stays in that area for a long time.
we used engine analyzer pro to help with the design of the inlet manifold, to match the rest of the setup of the engine, and driveability is excellent. It also lacks the "diesel" powerband some engines seem to have, with just a small window where the engine is working properly. smooth gradually increase in power to the point where the cams will let go. Attachment 195599 |
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Originally Posted by hf-mx5t
(Post 609409)
theres lots more to be had from that engine, thats for sure, my "laggy" 3076 goes to almost peak tq, at just over 4k, and stays in that area for a long time.
we used engine analyzer pro to help with the design of the inlet manifold, to match the rest of the setup of the engine, and driveability is excellent. It also lacks the "diesel" powerband some engines seem to have, with just a small window where the engine is working properly. smooth gradually increase in power to the point where the cams will let go. <img src="huge dyno pic I won't waste a page with" /> |
throttle response is wicked and it feels like a linear pull from 3k rpm to 7500.
modulating throttle mid corner is easy, and the power is almost instant. |
I just noticed I was looking at the red/blue instead of the yellow/orange. either way, both are good torque curves and I agree with you on that "diesel" nonsense everyone seems to have. Do you have any pictures of your manifold? or if willing to disclose, some of the "design specs" of the manifold
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with the 2871R 0.86 on my 1.6L there is very minimal lag. the power is high enough all the way from 3500-ign cut that you RIP through the gears.
but i need a 6 speed and rods to go more hp than i have now. |
nickC, check my build thread, lots and lots of pics etc.
https://www.miataturbo.net/build-threads-57/hf-mx5ts-3076-turboed-trackday-street-toy-38472/ |
Originally Posted by NickC
(Post 606601)
but your (turns101) torque curve doesn't look too much better than his (wes65).
vs 180 and 250 ft-lbs BIIIIIG difference. Something's wrong with wes65's setup. Leaking piping / BOV perhaps causing ultra slow spool. |
Originally Posted by JasonC SBB
(Post 609791)
115 and 140 ft-lbs @ 3500 and 4000 RPM respectively
vs 180 and 250 ft-lbs BIIIIIG difference. Something's wrong with wes65's setup. Leaking piping / BOV perhaps causing ultra slow spool. |
Originally Posted by faeflora
(Post 606609)
Damn guys quit gangbanging the frikken intake manifold wagon. There are lots of 350+ hp miatas out there with stock intake manis.
350hp on a Miata Motor is very easy and a simple receipe... Here it is... 720cc or bigger injectors HIgh Flow Fuel Rail Forged Rods Stock 94-97 Pistons T3/T4 50 Trim Turbo, or GT3071 Turbo Good External Wastegate 3" Downpipe to 3" Exhaust with 200 Cell Cat. Standalone Tune by someone who knows what they are doing. 18-20psi of Boost. Voila.. 350hp! Thanks, Marc M-Tuned.com |
Originally Posted by faeflora
(Post 606884)
Ok this is the shit that bugs me. Just because everyone thinks a part is better doesn't mean that it is better part. What's missing is the quantification. That is the distinction between theory and practice right? And since we're spending our $ on it we should take the time to find out what the specific improvements are (if any).
I will paypal anyone who has a NB mani the $ for a back to back dyno on the hybrid and stock mani, with fueling adjust for the same AFR targets We have a dyno in house.. Marc M-Tuned.com |
Marc, what octane?
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Originally Posted by Marc@M-Tuned.com
(Post 610022)
I did it over 8 years ago. I also tried a BEGi and Modified Honda and they did make more power at the top.
350hp on a Miata Motor is very easy and a simple receipe... Here it is... 720cc or bigger injectors HIgh Flow Fuel Rail Forged Rods Stock 94-97 Pistons T3/T4 50 Trim Turbo, or GT3071 Turbo Good External Wastegate 3" Downpipe to 3" Exhaust with 200 Cell Cat. Standalone Tune by someone who knows what they are doing. 18-20psi of Boost. Voila.. 350hp! Thanks, Marc M-Tuned.com What would your list look like if the goal was at least 400 whp? |
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