GPT needs more hp

[pocket-rocket]

Do a search on google for w body coil overs. That should net some returns on another forum for your solution for the rear. As for the front, you can either buy Suspension Techniques lowering springs, or a set from Eibach. The bad news about the Eibachs though, is that they are for a newer GP and you won't be able to use the rears.

As for the headers, good luck. The DOHC is a 60 degree and the 3.8 is a 90 degree, so that's going to be a great deal of tweaking.

[gtptuner]

I am going to take some measurements form an old 3.8 and see where they are going to put me. at first glance it looks as though I will have to remove the flange move the 3 and 4 exhaust pipes over a bit ( may have to lengthen slightly) weld on the new flanges but after that they should bolt in. the cross over pipe looks to be a whole other issue but I have enough spare pipe floating around that shop I am sure I can fab up sumthing that will work.

never know .. it may work or it may end up as a pile of wasted metal in the scrap bin.

[jman093]

Do a search on google for w body coil overs. That should net some returns on another forum for your solution for the rear. As for the front, you can either buy Suspension Techniques lowering springs, or a set from Eibach. The bad news about the Eibachs though, is that they are for a newer GP and you won't be able to use the rears.

As for the headers, good luck. The DOHC is a 60 degree and the 3.8 is a 90 degree, so that's going to be a great deal of tweaking.

Neither eibach nor ST makes lowering springs for 1st gen w-bodies anymore. I have ST's and hate them anyways. The only ones availble are cheap off-brand ones available for gen 1.5 montes. Search ebay for "monte carlo lowering springs". The Monte front springs are the same as a Gen 1 w-body. You won't use the rears. You could also cut a single coil off the stock springs which people say gives a 1.5" to 2" drop. Right what you wanted. The rear you are going to have go coilovers or there are lowering leaf springs available from Birchmount and Flexaform. I would recommend coilovers. W-body.com has a thread on making your own and there are 2 members that sell them along with West Shore Fabricators.

[pocket-rocket]

Neither eibach nor ST makes lowering springs for 1st gen w-bodies anymore. I have ST's and hate them anyways.

That sucks... I have the ST's too, courtesy of the previous owner and had thought of swapping out to the Eibachs. Thanks for saving me some time, lol.

[jman093]

That sucks... I have the ST's too, courtesy of the previous owner and had thought of swapping out to the Eibachs. Thanks for saving me some time, lol.

Do you hate them like I do? I like the stance, but hate the way they drive. The coils are pretty much touching eachother. Your car doesn't seem quite as low as mine based on your sig pic.

[pocket-rocket]

Yours does look a bit lower than mine. It doesn't have the tucked tire look to it like yours does. I don't absolutely hate them, but wanted to get the Eibachs for the progressive rate so it wasn't so harsh on small bumps.

[grandprixgtp_93]

would the eibachs for the lumina work on the gtp's?

[jman093]

would the eibachs for the lumina work on the gtp's?

yeah. All Gen 1 and Gen 1.5 w-bodies are the same up front.

[grandprixgtp_93]

where can i find the eibach springs i checked there site and it doesnt list them

[jman093]

where can i find the eibach springs i checked there site and it doesnt list them

Read my post on page 2. They don't make them anymore. Name brand companies stopped making them a few years ago. If you're set on a new pair of lowering springs you'll have to settle for Gen 1.5 Monte Carlos springs in an off brand and using those front springs. They can be had off ebay for $90. Nobody on here or w-body has used them so I can't relay anything about how well they work. I suppose you could always call eibach, intrax, or ST and see if they have some old pairs lying around, but as I said, you'd be better off going cutting off one coil on stockers or going coilovers. Many members have done this with success.

[gtptuner]

alright so I have set aside plans to lower it for now and have been looking it to a remote mount turbo .. the guys I have talked to about doing this have all warned me about detonation. how much boost have you that are running a turbo set up using?

[Jonpro03]

Detonation is a consideration on any forced-induction vehicle. The only way to know how much boost you can run is to get it on a dyno and tune it. FWIW, I know there's a 430hp 3.4dohc on 12psi. It's on the same page as your thread, just scroll down a little

[gtptuner]

and what thread would that be under?

[bszopi]

http://60degreev6.com/forum/showthre...hc....430-rwhp!

[gtptuner]

so as I was cruising for some parts for my 91 I came across this little tid bit . Have you guys ever heard of this?

"1. unplug the EGR valve connectcor, located just behind the throttle
body near the firewall- your 3.4 DOHC will WAKE UP and make about
20-30 more HP at part throttle driving conditions- it will literally
glide along on level roads at 70 mph with the EGR disconnected- and
will not require as much throttle input to pull from a dead stop or
uphills- most "low power" complaints on the DOHC can be totally
eliminated by simply unplugging the EGR valve- it will throw a code
and turn on your "check engine light"- but will not harm the car in
any way- after removing the EGR plug, run premium fuel for best
performance and to eliminate any ping/spark knock. The DOHC is a
relatively high compression engine 9.6:1, and really should have
premium fuel."

I don't see how a egr delete would have near that effect if any ..... heres the link the the rest of this fellas comments.

http://www.hondacarforum.com/honda-3/25159-gm-3-4-dohc-power-tweaks-maintenance-tips.html