My experience in an E30 ///M3 today

[Stan]

>>Jim C messed wiht the 2.5l chip for my car. Other people have the same problem. The TB's plates are PERFECT, and base co is to. The idle set screw is all the way in. It goes there and says, unless I disconnect the TPS, yea, the TPS WORKS FINE TO. I'm going to unsync the TB and force it to idle lower.<<

Uh, the idle air bypass screw is NOT supposed to be screwed all the way home!! That is what you seem to be relating, that it is. You can reset the fully closed position of the TBs to help out here. You can do that without unsyncing the TBs although it wouldn't be a bad idea to check it out. I like to use mercury sticks instead of vac gages myself. You may have to iteratively tweak a few of the various adjustments.

Stan

[Stan]

<
There are internally stock E30 (not externally) M3s that have broken 180 HP using the stock mild cams. I guess we'll just have to disagree for now. Are you familiar with secondary intake tuning? That really helps this car. I'm not running JC's alpha-n. I'm running a combo of alpha-n and MAP sensing. Mixture tweaked for max output on a real road at speed via maximizing accel g-force.

>>How ever with his system, he get really good throttle reponce and really noce low end torque. SO it might feel like a 190rwhp car.<<

It's tremendously faster than stock at all revs and does great test track times. And the times/speeds also correlate v. well with the approx. HP figures.

Stan

[Stan]

Here is a dyno of a US 2.3 S14 with and without the E2 cam. It put out 182 HP at the wheels, 4th gear, with the cam and a chip. And this is using an AFM!! No cam gear swap. The S14 is much more sensitive to the intake cam changes, at least at first, generally preferring more intake cam than exhaust cam.

http://www.dynospotracing.com/evocam.htm

Depending upon my tuning I am winding up with a peak power 3 to 11 HP higher than this when I'm not using the AFM. Not a huge peak increase. But again the AFM deletion is not best evaluated as a peak HP mod as it helps everywhere basically, so it's effect is particularly noticeable. What I am seeing in my case is that the intake channels in the head are the next bottleneck, soon to be followed by the injectors it looks like. Am I making more sense yet?

Stan

[EVOIIIM3]

Originally posted by Stan
Here is a dyno of a US 2.3 S14 with and without the E2 cam. It put out 182 HP at the wheels, 4th gear, with the cam and a chip. And this is using an AFM!! No cam gear swap. The S14 is much more sensitive to the intake cam changes, at least at first, generally preferring more intake cam than exhaust cam.

http://www.dynospotracing.com/evocam.htm

Depending upon my tuning I am winding up with a peak power 3 to 11 HP higher than this when I'm not using the AFM. Not a huge peak increase. But again the AFM deletion is not best evaluated as a peak HP mod as it helps everywhere basically, so it's effect is particularly noticeable. What I am seeing in my case is that the intake channels in the head are the next bottleneck, soon to be followed by the injectors it looks like. Am I making more sense yet?

Stan

Yea, you are right, it's still a really stong engine doing that. I'm going to be doing something to my car soon. But it has to look stock. who knows.

DC is a great guy who really knows the S-14 real well. He's going to burn me a custom chip when I can get down to CA.

You need to take some pics of the intake and your system. i'm really interested in the secondary intake tuning.

[Stan]

>>DC is a great guy who really knows the S-14 real well. He's going to burn me a custom chip when I can get down to CA.
You need to take some pics of the intake and your system. i'm really interested in the secondary intake tuning. <<

You know how AEM and Injen and others make metal tube intakes for Hondas and other Japanese cars? That is what have I have done, using insulated metal tubing. My air filter is the same ITG used in Conforti's E36M3 CAI. It has a polished alloy flared entry and a foam filter. I had to make various versions until I wound up with the best results... The intake path enjoys various tuning effects, some more or less length/speed of sound/reflection oriented (with harmonics) and some resonance related. You can get close with mathematical calculations but it still best to cut and try in most cases. Better yet is to have a variable intake which is used on some modern engines.

Stan

[Eric]

Originally posted by MarkPike
Nice! Get one, you will never regret it. I almost sold mine a year ago, but I backed out of the deal. I just couldn't part with it.

yeah tell me about it. i was ready to sell mine after it got in a wreck. i was goint to buy a WRX but i just couldn't part with it. now $9000 later, it's almost as good as new, and i love it. sometimes i find myself out in the garage just looking at it, or wiping it down at 11:00pm. my Girlfriend thinks i'm crazy, i tell her she needs to buy one herslef to understand