Boost Question when shifting.....
I'll be out there at 7:30-8, then going for a cruise.. Maybe hamptons later in the day too, either way we should meet up and chat it up for a little, been a while!!!
BTW what's all this talk about a 7k redline, it's not high at all, and IMO perfect for this car!
BTW what's all this talk about a 7k redline, it's not high at all, and IMO perfect for this car!
I'm calling BS on this, what have you got to back this up?
In addition to the other tuners listed my UMW flash came with a 7K limit.
In addition to the other tuners listed my UMW flash came with a 7K limit.
Protomotive set my redline at 7300 and I drove it like that for a year, then when I went to EPL for a custom tune, Tony set the redline at 6850 with the soft cut in first gear (factory programming). I noticed it on the first test drive, as I must have been used to revving over 7K. I didn't like the low rev limit or the soft cut, so we raised the red line to 7150 and lessened the cut. Tony recommended having some soft cut in 1st gear, so I took his advice. Now it feels like it used to..I think I was probably shifting about 7100 before. With the larger turbos, the car is still making power at 6,800, so increasing the limit does offer a performance advantage.
Last edited by John D; Aug 31, 2008 at 12:52 AM.
Protomotive set my redline at 7300 and I drove it like that for a year, then when I went to EPL for a custom tune, Tony set the redline at 6850 with the soft cut in first gear (factory programming). I noticed it on the first test drive, as I must have been used to revving over 7K. I didn't like the low rev limit or the soft cut, so we raised the red line to 7150 and lessened the cut. Tony recommended having some soft cut in 1st gear, so I took his advice. Now it feels like it used to..I think I was probably shifting about 7100 before. With the larger turbos, the car is still making power at 6,800, so increasing the limit does offer a performance advantage.
Well let's see I suppose the Porsche engineers just arbitrarily pick a number and program it into the ECU.
The rev limiter is there as a precaution (granted Porsche engineering may be erring on the safe side) to keep the engine safe. I assume they know something about performance and engine longevity. Now, to clarify my earlier humorous comment (as it appears some of you have no humor), I am not saying that raising the rev limiter will immediately result in failed engine, but I would be concerned about the longevity of the engine using stock internals. Ask yourself this...would you buy a car with 25000 type II overrevs? How about 2500? where do you choose. What risk are YOU willing to take?
The question is not WILL they do it, the point is will they do it without your knowledge (without you requesting it)? I say NO...prove me wrong.
The rev limiter is there as a precaution (granted Porsche engineering may be erring on the safe side) to keep the engine safe. I assume they know something about performance and engine longevity. Now, to clarify my earlier humorous comment (as it appears some of you have no humor), I am not saying that raising the rev limiter will immediately result in failed engine, but I would be concerned about the longevity of the engine using stock internals. Ask yourself this...would you buy a car with 25000 type II overrevs? How about 2500? where do you choose. What risk are YOU willing to take?
That shouldn't happen with a nice solid setup, go back to diverter valves! I have very minor dropoff if none at all.... One of the Z06's boys just posted up a run or was filming it last week, and my car didn't jump and pull, then back down like you see in my turbo race vids... BTW I run to 7200 in my setup and 7k on my ex turbo, obviously no issues!
You probably have seen the kid around, black Z06, claims he has just a tune and intake meanwhile we found out he's running 125 shot of nitrous , yea I pulled him
You probably have seen the kid around, black Z06, claims he has just a tune and intake meanwhile we found out he's running 125 shot of nitrous , yea I pulled him

BTW, it's your car, you can drive it into the ground...no skin off my back and who cares if you can't sell it?
Sorry to hurt your feelings but Mike doesn't have nitrous. The only thing you pulled was this story out of your A$$.
If you'd like to try another z06 with the same stuff, LET US KNOW.
Last edited by have2modit; Jan 7, 2009 at 03:36 PM.
WROSS...makes a point. I mean...think back to when you were looking for your dream TT. You probably came to the forum....or did some research somewhere and found the PPI checklist or other documentation that urges you to check any number of things before you bought it. There are usually a number of issues that move to the top of the list if you query the forum....the first of course is GET A PPI...followed in random order by....Are there any Type II over revs?.....then the second gear pop out, and finally paint thickness as measured by a thickness gauge. If you were to go on the forum an ask the guys/gals....Hey, I'm looking at this car that the guy really took care of, but it's got 27,672 Type II over revs. What sort of reaction do you think you'd get? Usually some sage advice like ....Run Forrest, RUN!. The same with the paint gauge.
Although the Type II over revs might be attributed to something like the tuner raising the over rev threshold....it really doesn't matter to the prospective buyer or the host of folks out there eager to help him/her decide on fight or flight. In reality, a 7,000 rpm over rev probably doesn't do much to the engine since engineers always build in a bit of slop factor into their thresholds knowing that folks are going to go over, and they can reduce the warranty claims by keeping well below the grenade thresholds.
As a for instance....I recently had some idiot back into the side of my car as it was parked in a hospital parking lot. No cameras to review security tapes, so I ate the deductible and filed a hit-and-run report with the insurance company. They sent me to the best body and fender company in the area, and they did a beautiful job of fixing the dent in the door...replaced the window actuator, and rebuilt the turbo inlet and area around the fender intake. I had them document via pictures....all of the steps they took to put it back in order and you can't tell...UNLESS you used a paint gauge.
What do you suppose is going to happen if and when I go to sell? The forum will recommend checking with a paint gauge and running the over revs....and guess what. I'll lose a prospective buyer because the door and rear left panel will show thicker paint than the rest of the car. So it's this sort of thing that flies in the face of anyone who might want to sell their car down the road. If you have over revs other than the minor ones...let's say arbitrarily....1654....the hue and cry will go up about ACCIDENT....BENT UNIBODY....and the same sort of thing will occur with the high number of over revs.
When I went for my tune, I talked to the tuner a number of times and discussed issues mostly related to engine longevity and reliability. I made SURE that the rev limiter remained at factory specs. This is a bit of a PIA in first when you run out of space in a hurry....but I won't be recording "hits" every time I simply take it to the new rpm threshold of 7,000 or whatever your tuner sets. Over revs cause anxiety for prospective buyers...regardless of how insignificant and inconsequential a 6901 over rev might be in the grand scheme of things.
The folks who really know the engines and threshold specs won't be turned off...but most of your potential market is in the folks who aren't very knowledgeable and would consider .002 over on a paint gauge to be proof positive of a catastrophic accident....or 26,000 over revs a harbinger of doom for your engine.
Although the Type II over revs might be attributed to something like the tuner raising the over rev threshold....it really doesn't matter to the prospective buyer or the host of folks out there eager to help him/her decide on fight or flight. In reality, a 7,000 rpm over rev probably doesn't do much to the engine since engineers always build in a bit of slop factor into their thresholds knowing that folks are going to go over, and they can reduce the warranty claims by keeping well below the grenade thresholds.
As a for instance....I recently had some idiot back into the side of my car as it was parked in a hospital parking lot. No cameras to review security tapes, so I ate the deductible and filed a hit-and-run report with the insurance company. They sent me to the best body and fender company in the area, and they did a beautiful job of fixing the dent in the door...replaced the window actuator, and rebuilt the turbo inlet and area around the fender intake. I had them document via pictures....all of the steps they took to put it back in order and you can't tell...UNLESS you used a paint gauge.
What do you suppose is going to happen if and when I go to sell? The forum will recommend checking with a paint gauge and running the over revs....and guess what. I'll lose a prospective buyer because the door and rear left panel will show thicker paint than the rest of the car. So it's this sort of thing that flies in the face of anyone who might want to sell their car down the road. If you have over revs other than the minor ones...let's say arbitrarily....1654....the hue and cry will go up about ACCIDENT....BENT UNIBODY....and the same sort of thing will occur with the high number of over revs.
When I went for my tune, I talked to the tuner a number of times and discussed issues mostly related to engine longevity and reliability. I made SURE that the rev limiter remained at factory specs. This is a bit of a PIA in first when you run out of space in a hurry....but I won't be recording "hits" every time I simply take it to the new rpm threshold of 7,000 or whatever your tuner sets. Over revs cause anxiety for prospective buyers...regardless of how insignificant and inconsequential a 6901 over rev might be in the grand scheme of things.
The folks who really know the engines and threshold specs won't be turned off...but most of your potential market is in the folks who aren't very knowledgeable and would consider .002 over on a paint gauge to be proof positive of a catastrophic accident....or 26,000 over revs a harbinger of doom for your engine.
How about, i'll by a Z06, do a few mods and make you look like you are standing still?? Who in the F cares, liars are just that. Come see me at the track.
EVOMSit also raised the redline on my car to 7 or 7.2K. It is standard in the program as I understand.



