i have a greddy twin turbo z actually tuned with uprev on stock ecu.
since i have the 20g turbos, lag is killing me, so im thinking of going with a haltech and i'll benefit from anti lag , launch control, brake boost etc.....
what do you guys think ? anyone here done this before ?
thanks !

 

Add a 50 shot of Nitrous to hit in the first few gears.

 

while drifting ? :P

 

Anti-Lag really puts some stress on the turbos itself. I would opt for some other option if you are looking for faster spool. Maybe a hybrid turbo, some billet impeller, BB shafts, etc.

May want to call Force Performance, as these guys have a good knowledge of the 20G and may offer some options. Maybe a hot-side swap... not sure. Can't hurt to call them.

 

Even more of a reason . Might be crazy sounding but maybe a exhaust bottleneck would help in this case.

 

if you do a real anti lag expect to rebuild the turbo after every drift event or two, turbos cant take the abuse. thats why alot of difters are going to v8 swaps

 

I guess if you are drifting or racing you need that immediate power, but I don't mind a little lag with my 20g set up. I like the little kick in the pants around 3600 rpm.

 

Isn't antilag mainly for launching e.g. 2step activated from a standstill. How would that help in drifting?

 

no anti lag is mostly used in rally racing to keep the turbo spooled during shifts. 2 step builds a little boost by retarding timing and keeping the mixture burning a little in the exhuast and makes a small amount of boost. a real anti lag system dosnt even detonate the mix until the mixture is on the way out of the exhuast valves or right before it opens depending on valve timing, the engine makes nearly no power during that period. puts huge stress on the turbine wheel and bearings, if you listen to rally cars and keep hearing a gun shot sound that is the anti lag activating every time they shift.

edit: if you DO use this system you need to replace the exhuast manifolds, cast might be good for withstanding heat but they are very brittle explosions from a anti lag system will shatter cast manifolds like the greddy uses. i suggest custom made manifolds i wouldnt even trust momentum headers i would go thicker due to the much higher heat and forces the manifolds will see.


edit 2: there is a system that wrc apparently now uses that you could use but expect to pay big bucks for it, includes a bypass valve for turbo air to be sent directly to the exhuast manifold. will also need custom exhuast manifolds, as well as a second engine management solution to control the bypass valve(use wrc cars now use 2 engine managment systems one for engine one for anti lag, talking full boost at 1500 rpms potential)

 

What time are you making boost? 20g's should make power by 4k rpm.
That really isn't that bad.

I'd say driver mod.
Or try to swap to 18g's. I'm not sure if they directly bolt up but it's worth calling a shop that sells greddy parts to find out.

 

I didn't care for the 20G setup when I drove it. It certainly didn't pull harder up top to make up for the delay in power either.

Never come across a built 20G car I couldn't prolapse on a "closed course"

Perfect example guys of research what you're getting in every aspect, don't think bigger is always better.

 

^^^ so true, bigger is not always better. Sometime I wish I went with 18g turbo kit.

 

Talk to BoostLab and speak to Kirk the owner about the billet upgrades for the turbos.

Two things, anti-lag can be used for roll racing or launching, both kinds of driving can utilize it. However, like mentioned before there is a serious strain put on the turbos, and IMO can be helped with other variables.

First off, many will swear by the Uprev, and although it is good, it cannot do what a haltech, proefi, vipec, etc. can do. You are limited by the programming of the factory ecu and do not have all the features that would come with a factory boosted car or an aftermarket ecu. The haltech and proefi can fix these problems easily.

Second, the 20g turbo setup are going to have more lag, it's the nature of the car, but a good tuner can help reduce the lag by adjusting the finer points of the tune. The price to upgrade your turbos, or buy another ems, etc... it might just be better to buy a set of 18g's and call it a day.

You have some options.

Also what are the specs of your motor? That can play a huge role in where the power comes on, cams, timing, fueling, compression, etc... You may have other things that can be done to help you out.

 

Had the anti-lag hooked up and controlled by my ViPec. The others that have chimed in are on the money... its main use is in rally, expect to rebuild turbos very often and it will crack exhaust man is.

It is hella cool for sounding like gunfire and shooting games out the exhaust though

 

So you're still alive? Lol. You got some thread locking to do

 

Its been a crazy couple of months... PM me links and I will get on it. Getting back to being here daily again. Besides, you guys hate the mods anyway

 

pffffff we dont hate mods, we just dislike when alberto is banned and not the retarded new people with dumbass questions =D(not this op this isnt something asked every couple days.....)