Well I may be changing my mind on the performance mods coming up that I will be doing. The latest was going to be a skunk 2 intake manifold, BBk 70mm throttle body, port match, and an AEM fuel pressure regulator.

Now I may be considering this drivetrain upgrade instead:
ACT clutch and a 7lb. clutch masters aluminum flywheel.

Or possibly cam upgrades like skunk 2, JUN.

What do you guys think will offer the best performance increases considering all will cost fairly similar. (considering labor costs also)

 

70mm throttle body is way the hell too big for an unmodded car.

What kind of car do you have (GSR I assume) and what are your current mods?

 

whatever you choose, make sure that in a few years, you wont be embarrassed to drive your car around.

 

dude, he's talking about performance parts, not LED washer lights.

 

dude, i know.

i'm also talking about performance parts as well as dumbass ricer parts, as well as semi-performance parts (ie exhaust, etc.)

in a few years, admitting having spent those couple of hundred dollars spent on making your car 0.1 seconds faster might be really embarrassing.

 

well Violation you can send me 3 grand and I will put a turbo on if it makes you happy...

qtiger- yeah its a 96 GSR. So far the mods are:
-AEM CAI
-DC sports 4-2-1 ceramic header
-DC sports stainless steel catback
-Jacobs ICE pak ignition

and so the others would then include the intake manifold, throttle body and fuel pressure regulator.

But I'm just not sure whether the other mods would be a better choice for my car.

 

I would only get the throttle body and intake manifold if you are planning on upgrading your cams soon.

 

why do you say that?

so would replacing the cams be a better idea?

 

IM and TB are really just supporting mods for a good set of cams. Same with I/H/E, when it comes down to it. Its all just prep work for the power adders.

TB and IM you might be able to squeak a handful of horsepower out of, with a pretty big loss of low end power.

Skunk2 stage 2s would net you closer to 17, and that's at stock redline.

Now, add them both together, and you get quite more horsepower than them individually.

Here is a dyno from Skunk2. As always, you shouldn't 100% trust manufacturer dyno charts, but I think it is a good example of what I am talking about.



You would never get that much power out of the intake manifold if it wasn't feeding the higher flowing cams. And those are just the stage 1s.

 

Interesting. I never really thought about the throttle body and manifold affecting the bottle end power until now. Thanks for saving me the mistake.

So I say a good set of cams would be a good idea. If I was to go with some new cams I think I would probably go ahead and install the valve springs and titanium retainers while I'm in there.
So say I went with the stage 2's. Those require the use of their valve springs, correct? (I'm still doing my extensive research on things so bare with me)

What about the streetability of using the stage 2's and what rpm range are they most effective in?

Also, when upgrading cams fuel requirements begin to increase. So If I went with stage 2's would the stock fuel system not be enough or would adding an adjustable fuel pressure regulator be necessary?