New build Approach

Ok, so the winter is coming here in Michigan and thats always everybodys time to build. Im thinking about putting the riv up for the winter and doing a couple things. I want to make around 40-50 more WHP. I dont want to go with Nitrous because its just something im not into. I know I could go with a bigger cam and some better heads. I just dont know which direction to go. I recently had to put a stock exhaust on the car because the Borla finally ate through with this michigan cancer our cars see. Im wondering if anybody has any ideas of things that I could do to reach this goal. And also if I need to get a heavier built trans. The one in it is the HD rebuilt with heavier clutches and bands and a 3200 pro thrasher shift kit. Will this hold another 40-50 WHP?

For some reason my signature isnt coming up with all the current modifications so heres the list of whats done right now. 95 Riv, Series II swap, 2.8" pulley, Cam, P&P heads, SLP headers, 255 FP, 50# injectors, Stainless valves, Springs/lifters/retainer, DHP tune, Borla exhaust, 3200 Pro Thrasher. 13.1 1/4 with a 2.01 60'

I didn't even know you had such a fast riv as it was. Holy tits!
If I were you, I'd be getting that trans built. At the very least get the chain drive and input shaft. I'd already be worried about the trans as it is. If you are against nitrous, turbo is one solid option and there's people selling that stuff nowadays. Mechanically speaking, I think it'd be easier to get 50whp out of a turbo kit than the blower considering the point you're at but otherwise, zzp's got some great aluminum heads and you can get the xpz or IS3/4 cam. None of those options are cheap or efficient in keeping the parts you've already bought but that's the point you're at now. If I were in your shoes, nitrous would be looking really good to me.

What about installing the GenV, N* TB and LQ4 MAF with water methanol and some more tuning.
Couldn't he get another 50 HP and TQ with that or is that stretching it. I don't know I'm just asking.???

That was what I originally had planned next with mine and was expecting about 50 hp and 50 tq additional. But I don't have nearly the internal engine mods that he does.

I already have an LQ4 MAF sensor on it, I just need to finish wiring it up. Is that really gonna give me a noticable difference? and the trans is built. I havent had any problems out of it and i mean I dont drive my cars lightly, but I dont really beat on them either. I was thinking about going with a methanol setup but wouldnt it be easier to run an intercooler like ZZP has offered? I was looking at this setup. http://www.zzperformance.com/grand_prix/products1.php?id=145&catid=139 If anybody has any insight on this intercooler setup or has it on their riv it would awesome if I could get some feedback on it. Never thought about the N* setup. Is it any good?

Is this what the IS3 cam sounds like?!?! https://www.youtube.com/watch?v=jpzHlJrfu34 cuz for a 3800 that sounds sooo mean

I didn't realize that you didn't have an intercooler already. I know you didn't state that you did but based off the small pulley size and a fast ET, I kinda figured you must have an IC. Now I'm thrown off a bit. What cam do you have? How extensive is the head work? What's your current boost, AFR, etc?

(if you still have a Gen3 SC) The best bang for your buck would be a GenV SC matched with the N* TB and the LQ4 MAF you have. Right now you seem to be making great power with the gen3, and down-stream breathing is great, but even with a ported stock TB, the SC has to work harder to suck air through the smaller throttle plate. Just going genV alone is the same as dropping .1-.2 of a pulley size, the efficencies of the blower puts out cooler air and will really make use of your 2.8" pulley, add to that it pulling in air better past the larger N* TB(SCs like to push air, not pull it) I could see you picking up 30hp anyway. More if you can get away with more timing from the cooler air charge.(the genV really doesn't have to work as hard to do the same result of a gen3)

Im gonna have to dig around and find the folder that has everything in it about the car, then ill be able to give exact specs. I know the heads are ported and polished with bigger valves, the cam is a comp cam, I think if I recall correctly its somewhere around a .540 lift with a 114 or 115 Lobe seperation. When its nice out my current boost is right around 12 PSI but with this cold weather im hittin around 13-14 PSI. The AFR im not sure of cuz I dont have a gauge but that is gonna change at Christmas. When I find that folder ill tell you everything. Its Rivmans old car if that helps

oh. haha, rivmans old car, I was beginning to wonder.... Was about to ask that.

Yeah, I love this car alot. Its performance is amazing and the comfort is next to none. Just lookin to get a little more out of it lol

you have: (or had)
Supercharged 3800 Series II
Wireing / PCM from 98 GTP
Custom DHP Tune
3.2" / 3.0" ZZP Modular pullys
Custom Fenderwell Intake
ZZP XP Camshaft
Zex Nitrous (75 Shot)
Walbro 255 Fuel pump
50lb injectors
Too much more to list!
Custom Heads:
Port / Polish
Port match the headers / intake
angle valve job
Bronze valve guides
Stainless valves
machined valve guides for high lift cam
CompCams 105 springs
CompCams retainers
CompCams OR Pushrods
CompCams Lifters
SLP Headers
50lbs Deplhi Injectors
Thrasher Shift Kit
ProTorque 3250 Converter
160 T-stat
LS1 Camero Duel Piston Aluminum Brake Calipers (12" Rotor)

Autometer Gauge pakage:
Speedometer
Tachomerter
Fuel Pressure
Fuel Level
Oil Pressure
Coolent Temp
Trans Temp
Boost Pressure
Voltmeter

(used to run: 300whp (Off the nitrous) 12.9 @ 107 with no traction.)

and Im guessing it would have to be a genv sc.
Rivman might have demodded a bit before selling...

Would you guys be able to tell if its a gen V by looking at it? cuz I have pictures

the genV has no threads on the top center for the fuel rail to screw into.

but yes, we can confirm with pics.

Ok, how do I insert a picture?

Has to be hosted somewhere like www.photobucket.com...then the link or IMG code stuck into your post.

And as far as I know, the only thing that was demodded was the nitrous

You can now upload images directly to our site. See link:

https://rivperformance.editboard.com/board-news-f2/posting-images-video-t1679-90.htm

http://www.flickr.com/photos/30723358@N05/4712252821/
http://www.flickr.com/photos/30723358@N05/4712893568/in/photostream/

Fastbuick95 wrote:

[img(720px,540px)]http://farm5.static.flickr.com/4020/4712252821_22f790e9af_b.jpg[/img

[img(720px,540px)http://farm5.static.flickr.com/4069/4712893568_03d0baca13_b.jpg[/img]

http://www.flickr.com/photos/30723358@N05/4712252821/
http://www.flickr.com/photos/30723358@N05/4712893568/in/photostream/

thats a really cool car! how do i get a shifter knob like the one you have? it looks way more comfortable than the oem.
i like the side exhaust. why did you do it that way? also can you post a sound clip of your exhaust?

I have a sound clip from the borla setup and I can get one with my current setup if you would like. The side exhaust was that way when I got the car but I like it alot like that too. The only downside is the clearance. It gets bumped every once in a while which is why I had to just put a new muffler on after 6 months =/

Hrm, stock TB, that looks like a gen3..with the fuel rail thread on top... but there is an adapter plate... unless its was for the NOS..and the way it crowds the alternator it *could* be a genV... lemme go grab a GenV and see....

....and deffently no intercooler....

whut? no boost actuator?

EDIT: ok i'm pretty sure thats a GenV, with a bolt just attached to the fuel rail....

Based off of what I know about the car and that the heads are improved a good bit over stock, I'd say a full size intercooler would be next. A short stack would be alright but for the bother, I'd definitely save some more and get the full size. If you want something you have to do as little of your own work as possible for, get zzp's s2 or s3 core along with their lower intake.

When you get that LQ4 maf wired up, you'll have to re-tweak your tune. I'd maybe say hold off on that until later. If the maf & tune is good right now, I wouldn't change it.

yup, what cody said. intercooler that sucker. And a N* TB will help too. That'll get you the power you want.

Ok, yeah I figured I would have to tweak the tune for that. Ive always worked on carbuerated cars all my life so this is alot of trial and error for me. I would love to get the full intercooler but I dont know if my budget will allow. I guess time to save up some more green =) ill have that sound clip up for you in a minute Rob =) I just went and took one with the current setup and its too damn cold to wait for idle down so im sorry lol