There have been multiple lsj's running 7200 rpms and never seem to have a problem. I know with my 7k redline on the stock turbo my cams and rollers, and followers showed signs of over revving. There was alot of wierd marks and some dimpling on one of the cams, I got it replaced under warranty though lol.

 

Haha oh the infamous warranty. I may or may not have gotten 4 new transmissions out of it. 3 of which came post turbo swap

 

Agreed! For someone like me though, that really only wants about 360 whp, itshould be running lower PSI than that. What I hope to get out of this is more hp at lower boost to have added reliability. So I think at 360 whp, the airflow and boost might be low enough to keep the stock springs in there. I should be well into the 12's (my goal) with 360 whp too. Do you agree? Or still think I should do the springs?

Just so everyone knows, I know I can get high hp out of the stock turbo, but I don't want to do it that way.

I know the BNR or the 252 upgrade will get me to those results but I want something that is truly bolt up with no BOV to worry about.

 

You're worried about buying one or just the tuning? Because if it's the tuning...just do it right and run a recirc setup and you'll have no issues.

 

i dropped a valve @ 25 psi with a gt2871 and a 7k redline. only 30k miles, just a heads up.

 

But didn't you do something stupid like downshift on accident?

Could be someone else I'm thinking of.

 

i concluded that must have happened because everyone was running 7k with no problems but didnt realize the extra power i was making especially up top. plus how the hell would i mess up the 3-4 shift its just straight back? there was only one broken lash adjuster and if it revved to 9.5k from shifting to 2nd then i think i would have broken alot more than that.

 

Bump for an update

 

If thats all you truely looking for and will be able to hold back the urge of having all that power at a touch of a button then you should be fine without them. But if you did springs you could easily rev out to 72-7400 on the stock motor and have a very nice power curve.

 

I had my gt2871 on the car for 45000 miles at 26psi and redline at 7000rpm and no problem with engine. And the another 3000 with the bnr gt2871 at 28psi and same redline.

 

what manifold did you use with the first one? and why did u switch to the bnr?

 

He has the synapse S3 just like you

 

I only ran a 13.2 at 113 trap with 355 whp on street tires. But I suck at 1/4 runs so.

 

your trap indicates 12s are possible with a good launch

 

Just like drewboo said i had synapse stage 3 kit. I switched to the bnr due to the turbo lag between 1st-2nd. I have a video of me racing a neon that shows the lag. I would show you but cant at work.

 

that's cause of the huge turbine side synapse sells with the kit. i think it was like a .84ar backhousing

 

ahh sounds like they did not do the turbine and compressor flow calculations when doing r&d
i mean its a good turbo still flows well but a turbine flow calculation would have solved most of that lag

 

Any dyno #'s on regular fuel? We don't even have E85 up here in Canada.. we have some ethanol blended crap which makes my car knock like a bitch if i use it lol.. think it's 10% ethanol or thereabouts. And to make matters worse, we're restricted to 91 octane, unless we use the 10% ethanol, which is 94.. it'd require a special tune I'm sure and since I'd bet the Usa doesn't have the same fuel, no tuner would want to deal with it either.
Just curious and wanting to know more details While waiting on any updates :P

 

Dude I get that blend down here in Florida tunes no different I think I got 2 degrees timing from it having slightly better cyl temps. Ur fuel must really blow up there

 

I run 94 octane since day one and dont have any problem, the tune is alright.

 

I had Vince tuning with some of that 94 residing in my tank.. it knocked 4 degrees on the infiniboost tune.. had to dial it down. After that, it still knocked 1 or 2 degrees, but once the computer dialed in the shell 91 again, it subsided. I believe at WOT it's currently about 1 degree right now. Boost is like a max of 22 lbs and holds 21 if I remember rightly. Might need new plugs to take away that last degree.. they are a year old now.
It knocks 2-3 degrees on petro 91, but it seems to clean it out well. Shell seems to send a fair bit of smoke out the tailpipe when u go WOT, at least for a second or two. I don't drive it that hard all the time, just need to get on it once in a while to keep it cleaned out.

 

Could we PLEASE get an update on that turbo... at least where the testing is at right now...

 

How the hell are you only running 113 with 355? that is one happy effin dyno! I was trapping 112 with 269whp...

 

Well it sounds like with a cam they have a big turbo running E85 on just the stock DI rail so be patient if you want it done right ....


I would like just a very very light estimation on the ETA for this kit as well so I can plan accordingly ....


How much is the cam ? Can we order them yet ?

 

Most Gas in Canada has upto 10% Ethanol in it

Stick with the Shell 91 cause it has no Ethanol in it