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some broad questions about bolt-ons and power gains

 
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Old 07-16-2007, 07:23 PM
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some broad questions about bolt-ons and power gains

Hi all, I am new here and have some questions. I am not new to cars. Have turbo charged a Miata, and also brought two N/A Mx-6's to low 14's (not too hard believe it or not).

My car is a 2000 Prelude, with a 5 speed. Just picked it up today. Only 64 thousand original miles! To my knowledge, the only modifications thus far have been to add Warm Air Intake, and it also looks as if it's been lowered. I think it was lowered correctly too, because the ride feels nice and stiff. Maybe that's just the nature of the car though.

What I want to get out of this thread is some general knowledge about performance mods. I do plan on adding all the bolt-ons as long as its worth it.

1) I was a bit discouraged to see that none of the intake manifolds available are very good. I would need to retain full daily drivability and still be able to pass emisisons.

2) Header... DAMNNN it is expensive for this car. My thoughts would be that the headerS on my mx-6 would be way more due to the more complicated nature of a v shaped motor, but I guess that is not the case? Whats the best compromise between price and power gains? I don't care about the looks.

3) Flywheel. This is the only thing I've yet to research today so if somebody could point me in the right direction that would be awesome. My mx6 had a 9 pound flywheel, and it shot like a bat out of hell from stop lights, but it made it a real pain to drive. Do they make one for the Prelude that is a bit of a compromise and not such an extreme solution?


OK so I'd consider a fully "opened up" vehicle to have the following mods:

Air intake, throttle body, manifold, cams, header, cat, exhaust.

With those mods, all done correctly, what kind of power gains can I expect? Seems like the cars are already tweaked a lot more from the factory than my mx6 was, and thus, performance gains are harder to come by.

Sorry for the long post. If you gurus stumble upon this, please take the time to answer as much as possible. I assure you I can be a valuable asset to the community!
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Old 07-16-2007, 08:16 PM
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Well.. The Honest truth in my thoughts are..

If you really want a notice about power gain. Get a Turbo kit.

Yes.. The car is tweaked pretty dawm far from the factory.. But as for as the Flywheel. ACT makes a pretty dawm good one and i loved it. I can still drive it easy daily and it made a hell of a differance in acceleration.

If you think that the headers are expencive.. There actually not. I just brought a Subaru STI. Try $1000 for a set of headers.. And thats Cheap. ( And yes. This TURBO STI has headers on it. Go figure )

Also.. I think if you get all the mods that you have listed.. You should get Hondata are some sort of engine manage system. because you will never the full potential of your mods until you get your ar tuned.

My guess would be 200-220 whp.
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Old 07-16-2007, 09:09 PM
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Findanza makes a nice 11-12lb flywheel, act is good as well.
the euro R manifold is supposed to be great.
ITB's are even better.
I don't agree with rory's turbo nonsense talk.
I do however agree with his views of bolt ons and tuning.
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Old 07-16-2007, 11:46 PM
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pretty much agreed with rory. these thigns are pretty fine tuned from the factory.
intake/header/exhaust will get you maybe 10-15hp?
fidanza 8lb flywheel works pretty damn well, revs up and down nice and happy, paired with an exedy stage 1 clutch thats EXTREMELY streetable and holds a good amount of power.
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Old 07-17-2007, 12:49 AM
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the euro R manifold is supposed to be great.
ITB's are even better.
but i hear they are a pain in the ass to tune. i think the problem blake had was getting i to idle right.

for headers, the best ones out there are RMF or smsp. pretty expensive but you will get the best gains out of them. stay away from DC.

and to go off of what rory said with a management system, you need to swap to an OBD1 computer.

also i figure, if your doing cams, might as well go all out with some higher compression pistons....... just a thought.
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Old 07-17-2007, 12:54 AM
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Quote:
Originally Posted by ogsmakdade View Post
Findanza makes a nice 11-12lb flywheel, act is good as well.
the euro R manifold is supposed to be great.
ITB's are even better.
I don't agree with rory's turbo nonsense talk.
I do however agree with his views of bolt ons and tuning.

I dont car what you say... In the long run.. I spent half the money and got twice the power.

Turbo Kit.. $3000.

All the bolt ons... You do that math and see the cost difference. lol
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Old 07-17-2007, 05:00 AM
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I would go with a turbo kit im coming to the end of my N/a build and Its costed me over 10K in just parts without installation and im only putting down 204 whp with 167 lbs torque, oh also mine is an auto, so end the end i wish i would have gone with a turbo and saved a bunch of money. Also since the car is an odb2 it will eventually reset itself to run as if its stock so no matter what you do if you dont get it tuned right you will not get the full effect of your bolt-ons.
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Old 07-17-2007, 09:51 AM
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Originally Posted by wickedlude01 View Post
I would go with a turbo kit im coming to the end of my N/a build and Its costed me over 10K in just parts without installation and im only putting down 204 whp with 167 lbs torque, oh also mine is an auto, so end the end i wish i would have gone with a turbo and saved a bunch of money. Also since the car is an odb2 it will eventually reset itself to run as if its stock so no matter what you do if you dont get it tuned right you will not get the full effect of your bolt-ons.
I think I mentioned though that this will be my daily driver. And I bought the prelude for a marginal increase in fuel economy. Will not be adding forced induction to this. Need it to work through the rest of law school. You should be happy putting that kind of power down in the auto. I hear they really rob the engine of its power.
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Old 07-17-2007, 11:51 AM
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Well i usually get about 154-163 miles to a half a tank. I always fill up at a half a tank lol. but still if you do a little bit of modsi would get some type of tuning b/c of the odb2 Oh im happy but for some reason im gettig bored i get bored of stuff really fast. I want to build a sti now. yeah teh guy at the shop that i got tuned said that i could have prolly pushed around 230 but since its an auto and it has all those extra crap inside stealing power i cant.
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Old 07-17-2007, 12:27 PM
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Quote:
Originally Posted by wickedlude01 View Post
Well i usually get about 154-163 miles to a half a tank. I always fill up at a half a tank lol. but still if you do a little bit of modsi would get some type of tuning b/c of the odb2 Oh im happy but for some reason im gettig bored i get bored of stuff really fast. I want to build a sti now. yeah teh guy at the shop that i got tuned said that i could have prolly pushed around 230 but since its an auto and it has all those extra crap inside stealing power i cant.

Well yeah, that's the nature of modding your car. Every time I make my cars faster, I become quickly numb. It will NEVER be fast enough for you. Sucks eh?
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Old 07-17-2007, 12:29 PM
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Well.. my car was a daily also.. I didnt have any problems with it at all except that i need to change the oil a little more often. With a nice tune you can get desent gas mileage.
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Old 07-17-2007, 05:30 PM
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but i hear they are a pain in the ass to tune. i think the problem blake had was getting i to idle right.

for headers, the best ones out there are RMF or smsp. pretty expensive but you will get the best gains out of them. stay away from DC.

and to go off of what rory said with a management system, you need to swap to an OBD1 computer.

also i figure, if your doing cams, might as well go all out with some higher compression pistons....... just a thought.
tuning them was actually the easier part. It just took patience to knock out all the kinks. I had problems with the springs in the throttle linkage coming out and ruining the valve synch....thats why i sold them.
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Old 07-18-2007, 08:38 PM
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tuning them was actually the easier part. It just took patience to knock out all the kinks. I had problems with the springs in the throttle linkage coming out and ruining the valve synch....thats why i sold them.
what brand did u have? where did u get em?
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Old 07-18-2007, 08:39 PM
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Quote:
Originally Posted by Rory View Post
I dont car what you say... In the long run.. I spent half the money and got twice the power.

Turbo Kit.. $3000.

All the bolt ons... You do that math and see the cost difference. lol
cost to me matters not. I wanted to realize the true potential of the N/A motor, not boost weilding power adders.
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OGGS is a stuff a nerd in the locker type. He's only mellowed out 3 months ago.
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As it is, I wouldn't trust you washing my balls. And I typically let any trick hoe from OT do that.
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Reading this thread was like watching pulp fiction the first time...

Cool quote Utopia.
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