Are you making 400rwhp on that cute little thing?
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No.
Does that change the fact that it will completely step sideways short shifting into second? Clean before 3800? |
Yes, because your turbo's sized such that you can spool with lower mass airflow than a big turbo can. For autox you need to be able to make upper 300s rwhp or more. If you're only making 200-ish then you're running a little baby turbo that can spool at low 2000s RPMs.
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I'm sure.
The turbo I have is capable of 250+, it is cheap chinese journal bearing shit. |
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That 400 motor looks cammed.
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it aint. in fact, it's a bone stock junkyard head that wasn't even refreshed
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Weird. Turbo torque curves on a Miata don't usually hold that late.
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Boost control methods are many and varied.
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Originally Posted by TNTUBA
(Post 1232926)
You clearly have no idea what you are talking about
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Because with properly setup cams you will pick up power EVERYWHERE on a supercharged car. I gained more HP and torque with cams than I gained going from a Eaton at 14 psi to a larger Whipple at 24.
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Clearly I missed this SC vs. Turbo debate as I was busy getting my car setup and tuned. However I will chime in with my dyno plot and dick waving. This is a car that is built for autox and street driving. Likely to do track days soon after some more supporting mods (coolant reroute etc). I have an MP62 running on a stock 95 motor. Supporting mods include TDR intercooler, 72mm throttle body, MS, 130/62.5 pulleys, Jackson Racing Header, CAT delete, and full exhaust. Now I am not yet building the motor (though I have a spare for that purpose) but I have a fairly conservative safe tune and I am pleased with my results. I picked the kit up used for a reasonable price and have run with it. I originally planned to go turbo and I also see the advantages for both systems. I believe I am at about the limit for the stock engine and transmission and hope I don't find out. But it is good to have spares.
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The limits on the engine and fuel system are lower with a blower than a turbo so you might be closer than you realise.
Dann |
I gotta say: I'd be lying if I said I didn't at least somewhat enjoy driving my MP62 setup. The whole "big engine feeling" comment is pretty much spot on, that's what it felt like. However, the "sling shot" torque onset of a turbo is just as, if not slightly more fun.
All opinion obviously |
Originally Posted by nitrodann
(Post 1233043)
The limits on the engine and fuel system are lower with a blower than a turbo so you might be closer than you realise.
Dann I am already starting to budget for engine build and have a spare 99 motor sitting in the garage for that purpose. And after the motor is built and I have the bigger injectors some higher boost and E85 might be happening. I wouldn't mind a relatively reliable 250+whp SC setup. (and no it isn't cheap to get there! but neither is doing a turbo set up properly) |
<shamelessplug/>My SC setup is 400+rwhp capable, buy it now for 2500$! Also buy my ID1000s. ;-)
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Originally Posted by 18psi
(Post 1233044)
I gotta say: I'd be lying if I said I didn't at least somewhat enjoy driving my MP62 setup. The whole "big engine feeling" comment is pretty much spot on, that's what it felt like. However, the "sling shot" torque onset of a turbo is just as, if not slightly more fun.
All opinion obviously |
If you need more torque, then you just need a bigger supercharger. From a roll, I was able to break the tires loose in 2nd on 275 A6s on anything other than a nice warm day on concrete. :)
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The miata's here that trap 122, 126, and 132mph in the quarter mile all spin wrinkle-wall slicks halfway down the track :)
oh and their e-peens are bigger :D |
That doesn't sound very streetable. :D
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