I think all the fastest drag racing evos are running 2.0's or 2.1's because in order to spool there rediculously oversized turbos they need an assload of rpm's. That guy that made 1041 hp basically spooled for 6.5 thousand rpm then has about 2k rpms where its making insane power, to me, and most people that is far from optimal.

Why do you think the fastest road racing evo's are running 2.3's or 2.4's? To me that is far far more important and usefull for any evo that isnt only going straight.


Silly me, I thought at 30 psi and at full bore down a drag strip that the 50trim would be faster than the 61 Come on, I never said anything like that, all I claimed was that on pump the 50 trim is faster and more fun to drive.

Peak torque values might not mean squat at the dragstrip, but me and lots of other evo owners who know our cars werent made for covering 1320 feet in a straight line, and doing other things (including daily driving) apprecaite and want tq and usable power over all out ***** to the wall top end, otherwise we would of bought a honda and slapped a gt42R on it.....

I agree that peak numbers are not nearly as important as the area under the curves.


Scorke

 

I know that a 37R or 42R will make more power than anything else on pump gas, but this will be on a 2.1 or 2.0 revving to 9k+, however nobody cares or talks about it because these turbos are slim to no fun on pump gas, and if your shelling out 2k+ for a turbo alone you have the cash to build your motor and run c16 or import whenever you please.

I think your incorrect about your second fact, unless meth injection counts as pump gas for you? I believe your citing sharkbites 512 tq before he jumped up to a 35R?

Scorkes

 

Not to chime in again, but not true once again. I, and everyone who is actually making bigger power, "care" about these turbos. A 2.3 or 2.4L with a 37R won't be revving to 9k+,more like 8-8500, and it will still be fun as hell on pump gas. I can vouch for that. You can still run "big" turbos on pump gas. Just my .02 and own experience.

C. Lee

 

The setup that delivers the most average hp through the gears will give the best 1/4 mi performance, it's that simple.

Judging from the graphs above, there should not be a big difference in performance between the two setups (50 trim and 'HP61') as tested. The difference in spool time appears to be the largest difference.

 

Average HP through the powerband used. Any hp below 5000rpm is null in drag racing.

 

Come on,Sorke,everyone have thier own prefences,not everyone want a small turbo for turning nor big turbo for drag racing.

 

^ Ang-I completely agree man, but I really really feel that no matter what tricks anybody can pull anything larger than a 35R on pump gas is just kidding themselves if they think its fun on the street, I guess I just don't have that sort of threshhold for lag, but your right, it is a preference not a fact. However I dont even use a "small turbo" I just feel that if I am going to be swapping out my turbo I want my gains everywhere if possible, and to be substantial, I hate to comprimise when it comes to power band......

Spoolins, so come on, why the change of sig when I ask which of your cars has a big turbo on it? Also if your not revving a 37R to 9 grand I'm sure its interesting to drive on the street

Scorke

 

you can't argue this!

 

Ok guys, got back from the track this weekend extremely happy

All we have is an 1/8 mile around here so yeah....

But neway

7.32 @ 95.67mph 1.86 60ft

Car spun all through first, and I wailed the rev limiter in 3rd a few times...I'm used to being right at top RPM in 3rd under the lights, but with this setup I'm getting there faster, so I either need to raise my revlimit(still on stock head/bottom so I'm not keen on this) or shift to fourth.

This was my first run of the nite, and I wasn't able to complete another decent run b/c I kept bogging the launch, but still trapping in the mid 90's, lmao.

I know the car has a 7.1 in it...just have to get it now These times should be good for an easy 11.0 or so.

 

Nice!!You can rev the revlimit tonorth of 8k(Serval Guys Do It) if you want or get some 4.11 gear.

 

I figure shes already a ticking time bomb as is, as I do drive it fairly often during the week. I'd rather not take my chances w/out at least some valvesprings. Car is not really a drag car anyway, I just like to have a stupid fast street car