M42 Turbo Build (Semi Budget, keepng AC!) No 56k

[MrSlacker]

WOW! You have inspired me to turbo my M42.

[Schnitzer318is]

Glad to hear it. I hope to add more vids of fly by's, in car, etc. in the next week or two.

That exhaust vid I posted on the last page is the sex to my ears. I am uber happy with the way the car sounds now.

[e30guydownunder]

ZOMFG that is exactly the sound I am after! Congrats man that exhaust just about makes all the work worth it!

Whats up with the idle I thought you took the cams out? Just running it rich and low idle?

Paging Danny to get in here and loose his shit.

[Reap3r]

Sounds awesome, Really makes me want to do mine now hahah.

[u3b3rg33k]

Cool beans. In for updates (like dyno slips, and final AFRs).

[Danny]

I just shit my pants.

[gearheadE30]

Very nice :). now I really can't wait for mine to be done, haha. And what's up with the really lumpy idle?

[Schnitzer318is]

Thanks guys for the compliments. I'm still tuning the car a bit, but she runs really solidly. AFR's at idle are ~13.8 (she likes it rich), cruising are ~15.5's, and WOT @11psi are at around 11.8ish.

The reason the idle sounds a bit lopey is because I don't run an ICV. If you listen carefully you can hear when the motor goes from idling at 950-1050 (smoother) to 800-900 rpms (lopey). It happens somewhere about when I am getting out of the car. I turned on my electric fan so that she would not overheat just sitting there idling. I had just taken her on a pretty hard run to adjust my boost controller.

I want MS2 so I can run a 3 wire ICV and do blended TPSdot and MAPdot. With MS1 extra I can either have it perfectly smooth on cruising or perfectly smooth on WOT. I have chosen to try to get as close to the middle of those two as possible so that she runs smoothly enough to be a daily.

I will post my .msq's and a log file when I have it where I want it before dyno'ing it. Then I will post dyno figures. Eventually I'd like to have it dyno tuned since I don't have the balls to mess with the spark map. We'll see what the budget allows.

As always I'll keep you all posted.

[Danny]

Still, amazing job buddy.

[Schnitzer318is]

Big time teaser update guys.

Did some tuning and the car is running buttery smooth now (without AC on of course, stupid no ICV). She pulls even harder now too. Hits peak boost at 180kpa (about 11.6psi). Bleeds off a little bit because I am using a shitty manual boost controller. Not too bad though, definitely still pulls hard all the way to redline.

Will post my .msq and a log file tomorrow so that hopefully you guys can catch any holes in my tune if (I'm sure I do) I have some.

But here is the BIG teaser part. Called Henderson Performance today and have a dyno day scheduled for July 18th! I am stoked. I will be happy with anything around 200rwhp but everyone who has been in my car guesses 220rwhp.

BTW, if you are in the San Antonio area and are interested in getting your car dyno'd, let me know. I am going up there with a bunch of guys and they are doing 2 pulls for us for $40. Not too bad. PM me for details.

[s_ribs]

I will be happy with anything around 200rwhp but everyone who has been in my car guesses 220rwhp.

I will guess 165whp (which I'm told is about as accurate as seat of the pants guesses). ;-)

[Schnitzer318is]

I will guess 165whp (which I'm told is about as accurate as seat of the pants guesses). ;-)

LOL I hope not. My car dyno'd 137whp before any boost. If I only gained 28whp, I'll sell the car the day after the dyno. ;)

[Schnitzer318is]

More updates...

1. Got the ICV circuit working finally. It idles smooth now with AC on or off. Still has some stumbling issues (with AC on) when returning to idle at low speed, but it is 100000 times better than not being able to use the AC at idle at all. With the AC off it works perfectly now.

2. Installed a Hallman Pro Rx manual boost controller. No more boost bleed/leak at all. I now have the full 10.5psi all the way to 7000 rpms. :) I can now chirp third gear pretty easily...

3. Changed my gauge setup to something a little more aesthetically pleasing. Also turned out to be more functional as well. I like this much better. See pics.

And the bad news... we couldn't get enough guys for the dyno, so I still have no idea what this thing actually puts down. Suck. I was really looking forward to that. I have rescheduled it for sometime in October/November. Hopefully more guys will want to go out there when it is cooler.

[Dj Buttchug]

How is you boost controller spliced in?

[dude8383]

http://i370.photobucket.com/albums/oo144/acse30/318is%20Turbo%20Install/IMG_2341.jpg

How'd you mount that? Looks super clean!