1G vs 2G

[97eclipse_gst]

I was at the track yesterday, I raced a 91 Gst, I have a 97 Gst, We left the trees around the same RT. I ran a 15.5 he ran a 14.9 How come he ran a better time then me? If say We are equally good drivers. Both have exhaust and filter. What am I possibly doing wrong. I have bad wheel hop is that what could be the problem? Wondering why I am slower? Made me feel like my car sucks and I like that feeling!!

 

[dsm-onster]

the most logical reason you lost is that you probably dont have much practice at the drag strip.(i could be wrong) So you probably just havent found the ideal way to launch it/drive it at the track. Just takes practice. Most stock 2g GSTs will run a high 14 to low 15 stock with a driver that knows there car very well.

Just my .02

Absolutely, thus the wheelhop.

 

[gsxeclipse97]

Yes I have raced a 1g also with a t25 but there is no way that you will win t25 doesnt hold boost untill redline no matter what. the 1g bov also holds more pressure so and the 2g leaks at 15psi. I had a apex exhaust and greddy bov and a open air filter when i raced him. He didn't pull on me and it was an even race stock clutch and everything.

If you were to do a 14b swap and race him again you would kill with no problem. there is way to much of a power difference between the two cars with the same turbo

 

[Littlebeeper]

his car is lighter and he got no wheel hop. Thats why he beat you. its not the turbo or anything like that. those 2 reasons are w hy you lost.
The 2G makes more power but is offset by the greater weight of the car. On slightly modded cars turbo makes no difference as its not making enough PSI to run out of steam or leak past the BOV, unless its a really leaky POS to begin with

 

[Zenja]

I think 2g are something like less than 50lb heavier. It's no big deal. They run slightly more boost stock though, and have many better components than a 1g. A 1g also has some better components than a 2g, but generally those better components are only noticeable at higher power levels. A 2g has a turbo sized well for the car as it is stock with stock boost. If boost is turned up, then the 1g turbo will have an advantage. A 2g also has higher compression ratio.

Performance varies a lot from car to car. It could be the presence of boost leaks, compression, clutch strength, tires, or any number of other things that will make one car run faster than another. In your case, wheel hop obviously slowed you down, but the 1g might just have been a stronger running car as well.

 

[Talesin]

From what I've been able to find, it's about 75 pounds difference (2745 vs 2821), which is good for a tenth of a second. But that's not from the service manuals, and I've seen wildly different numbers (likely from different trim levels) that place the 1G/2G GS-T anywhere from 300 pounds difference to five. I'd be more tempted to believe the 'roughly 100 pounds', especially if A/C is involved on one side and not the other. And a good hundred pounds off your weight can drop your quarter time by roughly a tenth of a second.

The 1G runs stock 12psi with the BCS in the loop and active. The 2G runs 14-15 (supposedly 14.7psi, 1bar), so yes, it's slight. The 2G also has higher compression pistons, and a much less aggressive timing map, so it can make the most of that 2-3psi bump.
A t25 will run out of legs far sooner than the 14b. Additionally, the 14b will flow more overall air, resulting in a cooler initial (pre-IC) charge as flow demand goes up. Not only does it not run out of legs as soon, it doesn't have to work as hard the rest of the time.. at the expense of mildly increased spool time/lag.

Noting the mods, a filter does very little. Unless you just don't want to keep buying paper filters (much like myself), there's very little reason to go with an aftermarket filter. The exhaust would be more likely to help him out, since the 14b still has life left in it, and a bit of boost creep from freeing up the exhaust flow could help out, especially with the lower compression pistons and harsher timing map, assuming he was running decent-grade fuel (aka: no knock).

That said, it all ends up coming down to the nut behind the wheel. Experience with launching, knowing the shift points you want to hit, shifting faster or more smoothly, being able to keep the boost going during a shift, or at least not spool down as far. Hell, I've met a guy who ran a mid-low 14 stock, just because he knew how to drive the balls off his car, and kept up on his maintenence.
I say your wheel hop is what killed you. If you matched on 60' and still fell back, I'd call that the turbo falling on its face, or driver error.

 

[nightspeed87]

The weight difference is a big factor. Also the turbos powerbands are big factors. And not to forget 1gs have different tb, intake manifold, and head designs all leaning towards a more higher rpm pull.
When i raced my friends 2g from a 2nd gear roll when he was stock and I had my stock gst we were dead even until about 5k, then after that; thats when I started pulling because of his power falling off and mines still going . Then that allowed me to dust him by 3rd gear.
Theres a lot of variables to it, but at the track a 1g will be way more likely to win if the 2g still has the t25 set up.

 

[gsxeclipse97]

1g also have more agressive cams compared to the 2g very slightly but up top that is where you will notice the difference. 2 v 1 stock the 2g would have a harder time keeping up but if you both have the same mods in theory you would run even times on stock boost. but if the 1g ran 15psi that would be the end for you..