is there a cheap way to get more boost

95_gst_red · #1 10-07-2003, 01:47 AM

hey im new to all this but i just bought a 95 gst and was wondering if there was any way to get more boost out of it.........and also does anyone now how hard it is to convert an automatic into a 5 speed?????????????????????

FourG63 97GST · #2 10-07-2003, 02:26 AM

want more boost?, get a boost controller
but you need a real boost gauge first

here's your new bible http://www.vfaq.com/index-main.html

Dude weres my dsm? · #3 10-07-2003, 02:15 PM

ok ok here ya go, take out your wastegate, and get a slightly stronger spring, your WG usualy opens at around 7psi, a stronger spring opens later thus meaning more boost lol

SlowCivic99 · #4 10-07-2003, 02:28 PM

does anyone now how hard it is to convert an automatic into a 5 speed?????????????????????

why bother?...yup dont even bother!

Sexy beast · #5 10-07-2003, 02:30 PM

Quote:

Originally Posted by 95_gst_red

.........and also does anyone now how hard it is to convert an automatic into a 5 speed?????????????????????

just sell it and get a 5 speed.

FourG63 97GST · #6 10-07-2003, 07:14 PM

as for the conversion, its not somethng I'll do
but you'll need to install the clutch master and slave clutch cylinder, 5 speed ECU, shifter and cables, and the tranny of course. I probably couple things but oh well
i'm guessing you're pretty much still stock, I'll sell it for a 5 speed if i were u

VenomInMyVeins · #7 10-07-2003, 10:01 PM

if you're serious about getting better/quicker shifts, do two things.. get an aftermarket tourque converter (and don't cheap out! This is an important part of making a quick shifting auto). I know this kid with a 99transam who knocked .9seconds off of his quarter with a new tourque converter, but the f body has such a bad tourque converter stock that you shouldn't expect that much of a gain, but still you'll be able to get a good jump on the competition. Also get a new chip and get someone you know to reprogram it to a higher shift rpm. My friend's is at 7700rpm, and he has an aftermarket turbo, so I don't know your exact rpm, but go to an import garage, they should be able to help you if you're serious, or direct you to someone that will be able to help. If you're into dragging, and you know how to fix up your automatic you will actually have a jump on the competition because you don't have a chance of misshifting. You know how there's a lag when you step on the gas in your automatic, well it's partly turbo, and partly your throttle body.. get a gen1 throttle body and put it into your gen 2... it'll give you a good kick off of the line, and about the turbo.. just don't be a fool and spool up before you go. if you're still serious about getting a 5speed just think of this.. most professional drag cars are automatics.. and if you're still serious just sell this car and buy an auto.. it's not worth all of the complexities and money to change your tranny.. you will lose so much money on it, just because it won't raise the value of your car and you're spending a lot of money doing it.

kjewer1 · #8 10-08-2003, 03:31 AM

Getting more boost is easy. It getting all of the supporting mods that will allow you to run that boost without blowing everything up that takes time, money, and effort. Its not hard, but it has to be done, and in some sensible order. People like to buy a 50 dollar boost controller, and crank it up on a stock car. Then they blow up the motor, and i have to sift through 50 threads a day about how unreliable eclipses are

Stock rev limit is 7500. Hardly worth reprogramming for another 200 rpm

Before upgrading the TC, its money well spent to do the end clutches, and shift kit. For 400 bucks (about the cost of an ACT clutch) you canb have a auto strong enough for over 400 hp that shifts quickly. You can also build boost on the line by foot braking. TC can be upgraded after the shiftkit/endclutches. The swap is tough, I've been through one. Not sure I'd do it again. At my level of DSM expereince I found the work was easy enough, its just finding all of the parts. People can type up lists all day long in these threads, but you better be prepared for the dozens of parts you never thought you'd need.

While there is one auto in the 10s, and a couple in the 11s, there are plenty of manuals doing that, and much faster. Why? Gear ratios. But thats another topic for another day. EIther one can work well, if it is set up properly and you're willing to deal with each ones particualr downfalls..

VenomInMyVeins · #9 10-12-2003, 09:00 PM

Quote:

Originally Posted by 95 GSXracer

Getting more boost is easy. It getting all of the supporting mods that will allow you to run that boost without blowing everything up that takes time, money, and effort. Its not hard, but it has to be done, and in some sensible order. People like to buy a 50 dollar boost controller, and crank it up on a stock car. Then they blow up the motor, and i have to sift through 50 threads a day about how unreliable eclipses are

Stock rev limit is 7500. Hardly worth reprogramming for another 200 rpm

Before upgrading the TC, its money well spent to do the end clutches, and shift kit. For 400 bucks (about the cost of an ACT clutch) you canb have a auto strong enough for over 400 hp that shifts quickly. You can also build boost on the line by foot braking. TC can be upgraded after the shiftkit/endclutches. The swap is tough, I've been through one. Not sure I'd do it again. At my level of DSM expereince I found the work was easy enough, its just finding all of the parts. People can type up lists all day long in these threads, but you better be prepared for the dozens of parts you never thought you'd need.

While there is one auto in the 10s, and a couple in the 11s, there are plenty of manuals doing that, and much faster. Why? Gear ratios. But thats another topic for another day. EIther one can work well, if it is set up properly and you're willing to deal with each ones particualr downfalls..

It can be worth it to look into upping your rev limit.. it depends on what you've done to it.. he has such a high compression turbo that it's not a feasable idea to change his rev limit up to 8000 to 8500 that'd be just rediculous. but yes there are automatics that are fast.. there are plenty. As for the venom 1000 (twin turbo viper).. the automatic get's the 1/4 mile in 8.93 seconds.. the manual's still in the mid 9's. If you're concerned about the ratio's.. check into changing ratio to the wheels my friend.

kjewer1 · #10 10-12-2003, 09:06 PM

I dont think anyone makes aftermarket gear ratios for the front diff. And on an AWD, its be a major pain in the ass.

VenomInMyVeins · #11 10-14-2003, 02:51 AM

that's true with the awd thing.. that would be a pain in the ass to get things tweaked perfectly. http://www.roadraceengineering.com/quaife.htm there's a link to someone that has aftermarket differentials.. I dunno if they are stronger replacements or if you can get a different gear ratio in them.

kjewer1 · #12 10-14-2003, 05:24 AM

Those are just a limited slip Diff, no gear ratio changes.

VenomInMyVeins · #13 10-15-2003, 10:04 PM

Quote:

Originally Posted by VenomInMyVeins

that's true with the awd thing.. that would be a pain in the ass to get things tweaked perfectly. http://www.roadraceengineering.com/quaife.htm there's a link to someone that has aftermarket differentials.. I dunno if they are stronger replacements or if you can get a different gear ratio in them.

damn that sucks. I'm seriously surprised that you can't change the gear ratio...

kjewer1 · #14 10-16-2003, 05:03 AM

AWDs are actually geared pretty well. 1st only does about 30, and 5th is good to 180 with a decent rev limit. So most people have never bothered to change it. With the guys running 8s and 9s on those ratios, I dont think there is a big demand, or enough of one to get an aftermarket company to make up a set.

More important that the actual ratios, as far as the auto vs 5psd arguement goes, is the spread. Since autos have 4 spds, they are more widely spaced than the 5 spds. So unless you build the car to have a very broad torque curve (not the easiest thing to do with a 4cyl 2 liter) you are not in the best part of the curce as often as you would be with a closer ratio 5 spd. With the stock setup, you make good power from 3k to 6k rpm. But on a well modified car, its more like 6k to 8k.

VenomInMyVeins · #15 10-17-2003, 02:32 AM

Touche.. you win. Lol... That makes sense with the auto and the powerband.. I hadn't seen the powerband on the eclipse. We have a vette and it get's like .1 less in the 1/4 than the stick and the stick has another gear. But now that I think about it the eclipse is also a sprint car vs the vette.. so the gears go quicker... so that makes sense too.

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