More Low End Torque

[JoeyJigglesGSX]

Just curious...is there anything that i can do for more low end torque? check my mods to see what i have now...advice would be greatly appreciated

 

[weith1111]

Purpose? Off boost power?

Cam gears can shift, or (kinda) extend/shorten your powerband.

If I'm assuming correctly, if you are looking for power before boost, think of yourself as NA, and do the mods they do: cams/head...

 

[DSMSpyder99]

a 50shot of Nitrous would cure that

 

[nightspeed87]

a 50shot of Nitrous would cure that

thats what i wouldve said.

 

[andymoraitis]

Aftermarket cams adjusted with cam gears are a solution to shifting the powerband into a more desirable range. You could try it on stock cams, but the aftermarket's would provide a more dramatic effect. The only other option is more displacement.

 

[TSIMonsteR]

High Comp. Pistons would give you more off boost power, but making tunning slightly more difficult

 

[weith1111]

thats what i wouldve said.

Before anyone else jumps on the NAWZ bandwagon, the OP needs to supply some more info, like is this to pass people without downshifting, for the track (drag or autox), just to get bigger numbers on a dyno sheet, or what?

I wouldn't do N2O for multiple reasons, one being it would be impractical for a daily driver in the low RPM range, another being the mechanics of having "low end nitrous." With the bang that nitrous would give you, are you going to cut off the juice when the turbo kicks in?

More low end torque...before boost kicks in...how much time is spent below 3 grand, with a small turbo you should have little to no lag, so why not just keep the revs up?

I picture the OP wanting more torque at his fingers at any throttle position, not a crapload of it above 80% throttle. But he's the only one that could answer.

For more torque at all times, I agree with Andy, more displacement would do the trick.

 

[andymoraitis]

High Comp. Pistons would give you more off boost power, but making tunning slightly more difficult

That's a good point. Tuning isn't that much of a problem when moving from 8.5:1 to 8.8 or 9:1. A little timing comes out and it's all good and worth it for the extra grunt and compression.

 

[dalatinromeo]

Before anyone else jumps on the NAWZ bandwagon, the OP needs to supply some more info, like is this to pass people without downshifting, for the track (drag or autox), just to get bigger numbers on a dyno sheet, or what?

I wouldn't do N2O for multiple reasons, one being it would be impractical for a daily driver in the low RPM range, another being the mechanics of having "low end nitrous." With the bang that nitrous would give you, are you going to cut off the juice when the turbo kicks in?

More low end torque...before boost kicks in...how much time is spent below 3 grand, with a small turbo you should have little to no lag, so why not just keep the revs up?

I picture the OP wanting more torque at his fingers at any throttle position, not a crapload of it above 80% throttle. But he's the only one that could answer.

For more torque at all times, I agree with Andy, more displacement would do the trick.

Good post, I have to agree with you guys too, more displacement will help with your low end torque. I can't remember when Andy has ever been wrong.

 

[weith1111]

That's a good point. Tuning isn't that much of a problem when moving from 8.5:1 to 8.8 or 9:1. A little timing comes out and it's all good and worth it for the extra grunt and compression.

Something to note...isn't it pretty standard to raise compression on a rebuild/race motor?

1g's are 7.8:1 stock? And rebuilds start at 8.5 or 8.8...

You won't get a leap like that in a 2g, but just food for thought. You could go higher compression even, but lower boost ultimately

 

[kenamond]

Variable A/R turbine housing. Also, variable valve timing. Neither is cheap, but both will help A LOT.

 

[andymoraitis]

Something to note...isn't it pretty standard to raise compression on a rebuild/race motor?

It pretty much is standard to raise compression, even just a bit. Keep in mind that while the 1G is 7.8:1 as you mentioned, there are pistons made to run 8.3:1 on the 1G and they're pretty popular although I've seen people jump straight to 9:1, especially with a laggy turbo.

I still like displacement the best though. I'd have a 2.7 with an FP Green running 20psi on 10:1 compression if I could. Damn, I just pissed myself thinking about it!

 

[andymoraitis]

I can't remember when Andy has ever been wrong.

That's very kind, but you must have an awful memory!

 

[wret]

Smaller tire diameter.

 

[nightspeed87]

Smaller tire diameter.

Thats a good point, but wouldnt be desired if he has enough power to wheel spin once boost kicks in because then traction could be an issue.

And my point with the nos, I thought he was talking about more power before boost kicks in during race situations so Id say get a proper nos kit tuned for the car and spray hard until boost reaches its peak then let off. A lot of ppl use this trick to offset the lagginess of the turbo, but does seem he has a bigger turbo so should be that much to worry about..
Im thinking maybe he just wanted more power for everyday driving while not in boost so he can have power and gas milage?...Maybe thats what he ment... With engines theres always a compromise and you have to sacrifice one side of the power band for the other.

 

[JoeyJigglesGSX]

thanks guys for all of your replies. I dont think i will ever go with NO2 though, i was just curious. I just think it is the summer. This morning my car felt amazing because it was so cool out. My ACT 2600 clutch and flywheel go on next week, and i think i am going to work that in for about 1,000 miles which wont be bad because i go to the beach every weekend. But I have the greddy 24 R front mount ready to go on and have it re dynoed so that should give me some power. Appreciate all of your opions and i believe that the displacement is the best way to go. Thanks a lot guys

 

[nightspeed87]

well the light wt flywheel should help so since it revs quicker it should put you into your power band a little sooner, maybe that will help your car feel a little more peppy?

 

[PieEyedPiper]

well the light wt flywheel should help so since it revs quicker it should put you into your power band a little sooner, maybe that will help your car feel a little more peppy?

nah, he woudlnt notice a difference in that respect. Good idea though.

 

[funniegus]

stroke it!

 

[xveganxcowboyx]

well the light wt flywheel should help so since it revs quicker it should put you into your power band a little sooner, maybe that will help your car feel a little more peppy?

That would probably decrease the low end "comfort" driving torque he seemes to want.

If you just want a bit more, I think the timing and head work ideas are useable.

Otherwise, it's all about compression and displacement.


I was originally going to give Wret's answer. Drop the tire diameter some and you'll have a very noticeable low end gain. (just ignore the speedo...)