who runs it on what?
pro's and con's
discuss
i ask as a few friends are running gt35's etc but do sprints and need boost earlier
out of corners etc.
gt series we have heard are not ALS friendly?

 

I would say that no turbo is ALS friendly

I would think that ball bearing turbos are more tolerant, i.e. last longer, than journal bearing turbos.

However, ALS is brutal on turbos. WRC teams swap out turbos every race I believe.

 

yeah i guess its brutal for any turbo
hmmmm a squirt of nos pre spool maybe the only answer

 

Seems that the consensus on ALS is it is not financially feasible for private Evo owners due to extreme turbo wear. If lag is your problem there are other ways to address it.

 

I've used launch control antilag on a TR30R and a FP HTA35R on my Pikes Peak hillclimb car. I haven't been able to use true rally-style antilag, as the AEM software doesn't allow for it. Hopefully next year we'll be able to get that going.

The TR30R is a Garrett Motorsports turbo that uses some high $$ internals so its able to withstand high EGTs seen during periods where the antilag is kicking. Another factor to consider is what type of roads/tracks you'll be racing on. If there's lots of partial throttle and WOT driving and fairly little time spent off the throttle, the antilag won't have much time to do damage.

Dave

 

I personally really like FP turbos for four reasons.

1. They spool sooner
2. Produce more torque
3. better usable powerband (for your use)
4. Robert is a smart *** dude

I personally love my Red!

 

Missed this in my earlier post...but you ain't seen lag on a 35R until you've tried to get it to spool at 14,000 feet above sea-level.

If they're not left-foot-braking, a ton of spool time can be gained back thru the use of this technique. Once you're done with most of the braking (straight line), and you've downshifted, move your foot back to the throttle really early knowing it'll take a second or two to build the boost, finish modulating the car thru the turn with your left foot on the brake and when the car's pointed in the right direction, release the brake and hold on!

I found in the "Ws" at Pikes Peak, I could have the car bulding ~15psi as I was getting to the point where I wanted full power again (running 30psi peak). Use of this technique easily gained a second per corner over just hammering the gas pedal when I was ready. Definately a bit more leg work than a proper ALS setup, but not quite as hard on the turbo, so much more budget friendly. Only real downside is that you'll be getting more heat in the braking system which could lead to its own set of problems.

HTH,

Dave

 

I run anti-lag on my hta35r... very rarely use it though and it is mild. No throttle kicker.

 

i guess mild als could be setup but how effective that would be who knows.
the heel and toe is a good heads up
any thoughts on using nos pre spool only? i.e nos injects from say 3500 to 4500 raising torque substantially and will spool the turbo earlier from raised egts iirc or maybe even purely more exhaust gas @ x rpm than when not on nos.
?