• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

L36 n/a mods including top swap

suitercrew

suitercrew

New member
Hi I'm new to the forum and had some question about my project. I just got a 99 Gp Gt coupe with 90k on it, I've had it for a couple months and it runs great but I want more power. I would be happy with being able to run with a gtp so my question is top swap or should I leave it n/a and what mods should I get. I am an OK do it yourselfr but have only gotten as deep as replacing lim and water pumps kinda low level experience like that. Can someone explain how had it would be to do a top swap and prices of getting to my goal.

Sent from my LG-D851 using Tapatalk
 


im running a top swap with a mild head port and 1.95 rockers and headers, stock pulley. it pulls damn nice.

my car came sc and it blew up, so i technically bottom swapped it. so i have a hd tranny.
 
Could you post a link for the top swap post, I searched for about an hour and couldn't find anything. :\

Sent from my LG-D851 using Tapatalk
 
Thank you very much its perfect!! Now if I decided to stay n/a could I achieve my 200whp basically what a stock gtp puts out with rockers and Bolt-ons I don't believe I'm experienced enough to do a cam by myself.

Sent from my LG-D851 using Tapatalk
 


I found a guy that has a 98 gtp motor that has a spun bearing but I asked him how much for everything from the heads and up and he said 120$ (he does not have the m90) is this a good deal? And what should I look for as far as potential damage or wear the parts might have. Could the spun bearing damage the heads? Thanks!

Sent from my LG-D851 using Tapatalk
 
id try to beat em down some, at a junk yard heads are like 30 or 40 a side.

theres a gen 5 blower and lim for sale on the site here rather cheap too.
 
N/A needs cam swap to even come close to 200whp on motor, along with plog/downpipe/rockers/hv3 and whatever else.

Also note that whatever you decide to do, you'll want a custom tune with a wideband installed in the vehicle. And most "shops" don't do 3800 cars as most are either LS based or Euro/DSM.
 


Nope.

You are taking a high compression block and adding boost, it was never designed for boost. A "canned"/"Bought" tune will not be good enough.

Google wideband and what it does, you have alot of reading to do.
 
its a little better. gen 3's are cheaper still and do the job.

a wideband is a air fuel sensor. works off a o2 sensor you install in the exhaust.
 
Fivefingerdeathpunch said:
Nope.

You are taking a high compression block and adding boost, it was never designed for boost. A "canned"/"Bought" tune will not be good enough.

Google wideband and what it does, you have alot of reading to do.
Click to expand...

you can get a canned tune, but in car is so much better. what i have, self tuned.

you also need headers for a top swap.
 
I'm not giving away free answers, you want to mod a car read up and do it the right way.

A canned tune will never suffice. Every motor with a top swap is going to respond different, I wouldn't risk my motor over it.
 


Fivefinger I read a how to on top swaps here on the forum it didn't say anything about installing a wideband or headers for that matter so I'm just trying to figure out if there's anything I'm missing that wasn't in the tutorial.

Sent from my LG-D851 using Tapatalk
 
Ya the guy is throwing in the l67 heads. How are the l36 and l67 headers different

Sent from my LG-D851 using Tapatalk
 
You must log in or register to reply here.
Back
Top