That's contrary to what I've always heard. You want to shift a few hundred RPM past your peak so that you actually use that power and don't fall too low into the powerband on the shift. The determining factor should be the RPM that you drop to, not what you drop down from. With turbo lag being a problem, if anything you'd want to shift higher, not lower. I think...

 

Leave your right foot on the floor when you shift. That will get rid of your lag.

 

Please. It took a while for the vishnu stage 1+ guys who are currently running low 12s to get there.

It just takes a little while to get used to a new setup and extract the most out of it. A few more times to the track and a little tuning (see signature) will get you there.

 

Correct me if I am wrong but don't Buscher's kits use internal wastegates, most internal wastegates will have a nut so they can be loosened or tightened to increase or decrease spoolup. I would make sure yours is not to loose. I know on alot of turbo cars you can crank it down a few times and help your turbo spool better, I can imagine the opposite would cause lagging/spooling issues.

Shane

 

i think its the stock IC piping. its balloning....

 

High 11s/Low 12s not as easy as some think. Evo8power good luck on your quest to hit 11s and man this would of really got ugly if you would of talked it up and guaranteed mid to high 11s. I was close on the hp prediction with 380 on 94 oct but you tuned it on about 96 oct so I was luckily dead on. Where are my burger coupons.Your times at the track were a big suprise as I thought low 12s at worst at 115mph but was expecting high 11s. It sounds like you got some issues to work out on your car before you get into the 11s.BTW When and if you hit 11s be humble and remember where you have been. All the past Vishnu bashing about how when you run race gas and the times you were going to get even on the stock turbo etc. has got to be haunting you. Good luck and I hope you have learned a valuable lesson.

 

It wont hurt the flash but running a higher octane fuel will contribute to a weaker power delivery , just like someone here spoke off. The C16 with have a richer burn rate than than just plain 94 octane. So in turn running the C16 without having a good advance in timing will contribute to a slower burning less efficient fuel. Correct me if I am wrong anyone. But running higher octane fuel without the proper pre provisions will result in a loss of power. Also the lag shouldnt contribute to your slower trap speeds. You will just have to shift at a higher point. Also are you still running the stock BOV ? And what are your shift points? How many miles on your new turbo?

 

Using C16 on a flash will cause the car to run richer, however it will def run higher timing values ..or the ones al set in the primary map. However we are all forgetting one important point... However bad he drove the car ..doesnt alter the fact that the car didnt make MPH. If the power is there the car would of made MPH... Stock turbo's have netted 118mph ...

Mark
Turbotrix

 

Well if the car was tuned for 94 octane using adv timing for that octane. So unless the ecu can just keep adding more timing as it goes without a limit then yes it will work with C16, but we all know thats not true and if it was then why would we need tuners. Fact is that a car tuned for 94 will make less power running a slow burning high octane fuel and the mph will drop big time.

Yes stock turbos have netted 118 mph, but those were on cars either running NO exhaust, Y tube with a dump valve or spraying N20 at the top end. With a full exhaust its more in the113-114 max.

 

You ever looked at buscher web site , ever heard of ROLLAWAY , TURBODAWG ....
Stock turbos can run 113 with out cams .

 

honeslty, think about all of this. People with the buschur stage 4 kit have run high 11's at over 115 on very hot days with the stock turbo...

regardless of how much some people want to justify how great this turbo upgrade is...i think that they are just pissed off that they spent $3,000 and are not getting the performance gains that we all hoped for.

Hopefully in the future the tuning glitches or whatever can get worked out and these turbos can actually start making the power that everyone is claiming they are capable of.

until then..........12.6 at 112 sucks. I've seen that done with less than $1,000 in bolt ons

 

I would get that forge the hell out of your car, my evo was pita to shift at high rpm's at the track with that bov. Just my personal experience, some people have very good luck with these, try something else, I would say the MR valve like I'm running, possibly worth it's wait in gold for what it has done for my car, but I don't know for sure if it will hold the boost you're running, someone still needs to hook one up to a compressor and stress test it.

 

REZ90 needs to grow up first..how r your times bro??? im a horrible dragstrip driver, i can launch a car but slow between shifts, first time on the track with new turbo...i ran a 12.67 with no cams and stock turbo at 109 so shut the ++++ up....anyway to the people helping, im gonna run 96 octane next time out and realy try and shift harder at about 7300, i have to check with buschur about the lag problem and see what they think cause they claimed only 600rpms later than stock....also had stock BOV on and was leaking 3-4 psi when i put forge back on that night, i wanted to a 28psi run and was only over 25.....

 

Hey Kevin you should try to shift in the 7800rpm range. Since with the dynoflash it moves your rev limit up a bit along with the fuel cut.

 

EVO8POWER...dude you need to relax before i come to PA and smack you in the face...i wasn't even insulting you.

I was just saying that the times that are coming out of buschurs turbo kits are definatley not what people were expecting. and if you are going to argue that, you're crazy, because you know you were looking for more gains than you actually got.

i wasn't even criticizing your driving either, it's your trap speed, which in essance, you don't have that much control over. that is what shows that the turbo kit is lacking somewhere.

so relax and think about what people are actually trying to say before you tell them to shut the fu_k up.....douche