I want to see what rpm do you guys launch on your turbo set ups. The reason im asking is because im putting my ls/vtec turbo together (t3/t4) and im about ready to get my ecu chip with crome by xenocron, but I dont know what rpm I should set the 2step launch at. My friend launch his DC2 gsr turbo at 4000 but he didnt have 2step (if thats what you call it) and since im going to use 2step, I feel like its going to be different because I will be launching at full throttle. Partly throttle 4000rpm launch and full throtle 4000rpm launch are a whole different thing. I also have to consider that I will be using slicks from time to time. So im undicided what rpm to set it at so can you guys give me some pointers or what you guys laucn at? THANX
p.s I might start a thread on my turbo build up not sure yet.
I have been using the 2step feature and through my trial and error. I found that on the size slicks I have, launching at 5500rpm worked best for me. I use Uberdata as far as ems goes. I tried 3600 rpm no slicks with a 15 MPH disengage and I would never get traction. even on azenis tires or BFG’s. it really has alot to do with your set-up. I would try 5-6k on your LS/V.
on my LS running 20X8.0X14 M/T slicks 5000 was the sweet spot
on Hoosier 25X9.0X13 it bogged and needed more power, so with that said, I will be getting a set of 24 or 24.5 X8.5X13 and upping my 2step to 6000rpm.
thanx! I appreciate the feedback keep them coming. so you saying that once xenocron sets my launching with CROME I could still play with it after I receive it? but do I have to go to a tuner for this or is there a way I can re-set it?
posting your setup with your rpm launch will help alot…
That’s the thing, Once you get the chip from xenocron, and you want to make changes to it, you won’t be able to unless you have the same tune saved on your computer to make those changes, otherwise you’ll have to start over and make your own tune and settings.
My set-up when tested:
Stock LS- T3/T4 57 trim, 12 PSi
non LSD, Omni sport suspension 12kF-10KR
Z10 traction bar, rear seats removed
Uberdata tuned w/ rc 440cc with a 5000 rpm full throttle launch with a 15MPH disengage
No I did my own. I have a my wideband and eprom burner. I have it saved on my computer in case I want to make changes myself later on. I am going with Neptune personally later on when I get serious with my tune. They have a 3 step that can be variable. you set it where ever you want on a fly instead of re-chipping it again and again and they have Anti-Lag(Sounds Gangsta)…
On BFG drag radials building 11psi I would launch anywhere from 4500-5000. on 0 boost, I’d be launching in the 7000’s. Still trying new things. Best 60’s I can do are 2.0 I can get it to come outta the hole good, but then when the power comes on, it just spins like mad cause of the power I’m pushing and the tires. Times suffer therefore. But hey, 100mph at the 1/8th still gets the job done in the 1/4 The glory of top end.
Omni 18K rear drag coils, 12K front
Quaife LSD
B16 Trans
Full-Race traction bar
2600 lbs with me and 1/4 tank gas
BFG DR 225/45R17
Anti-lag retards timing and adds more fuel under launch conditions. with this engaged, it makes the car feel as if it were under load which that’s when you build boost pressure more easily. You should google it and the effects it has on components. it’s not good at all to your turbo, manifold, cat…etc…
2 step Launch control is just that. It set’s your launch RPM and disengage MPH. It’s the easier way to keep that 4500 rpm at 4500 when your taking off. One thing I did was preload while using it. works out pretty good when I’m not rushed. you pull the E-brake when staging and then push accelerator all the way to the floor. 2 step will kick in, then ease off clutch a little. watch the pressure build. 2 step is safer on components than anti-lag, but anti-lag can build a ton of boost off the line. I think the most I’ve ever seen on my ride was 3-4 PSI using 2 step.
Tchleung ; its crazy how you can still get good numbers with 17’s! you ever tried it on slicks?
smokeintegra; I had thought about the e-brake technic but I did not know what results I would get, im definetly trying it now. Does xenocron offers Neptune? Is it better than Crome? Thanks for the info on the anti-lag I had’nt got around to look into that, I think maybe its time since im in the process of my set-up, maybe I should start a thread on my build.
yeah he tunes neptune but the cheaper out of the 2 is crome. both are good for whatever you want. i would go with crome first because it is cheaper. i’ve used and been fine with the 2-step. my best 60-foot preloading was 1.91. it works good, i just want to give anti-lag a try.us
I also like the fact that Neptune has the dual stage boost controll program, I wanted to get the TurboXS dual stage boost controller but I was told that I needed a program that accepts it like Neptune. I want to decrease traction problems as much as possible.
No havne’t tried slicks yet. That wouldn’t be fun then when I can run down 500+whp domestics with BIG slicks with race gas and a race car, THEN drive home on the same tires lmao. Naa next year I’ll be gonig to a twin disc/axles/slicks. Pulling the ebrake also helps to prestage and preload the drivetrain.
I don’t have the money to embark in something like that It’d be nice but realistically I’ll most likely never step into the k series. I know the B series, and it does everythnig I want so :rockon:
Tchleung; Thats cool the way you see it, it makes sense, atleast your not just talking shit about the k-series how it sucks or its a waste of time. you have a reasonable answer. As soon as im done with this turbo b-series I want to get into the K, I like to explore alot so its like the k-swap is calling me out for a challenge especially since im swaping it on my DA gsr which is not common. I manage to save some money on the side over time and got a hold of a k24 long block. but I dont want to get into it, until I have this ls/vtec turbo running I had it for a while with a nitrous system it has some head work on stock bottom end and now is time to boost it before I let go.
I can get it to come outta the hole good, but then when the power comes on, it just spins like mad cause of the power I’m pushing and the tires. Times suffer therefore. But hey, 100mph at the 1/8th still gets the job done in the 1/4 
The glory of top end.
It’d be nice but realistically I’ll most likely never step into the k series. I know the B series, and it does everythnig I want so :rockon: