CyberGrey Z28

iTrader: (4)

Nice!! What tires are you running?

ddnspider

iTrader: (26)

Thanks, they're 295 50 16 MT ET Streets on stock firebird wheels.

joecar

and 10-bolt too... good job

ddnspider

iTrader: (26)

Thanks man! And thanks for helping me sort out the different torque tables.

JakeFusion

iTrader: (7)

Excellent. If you could spin to 7000 without blowing everything up, you'd be in the 10s.

But RPM is what kills the 4L60...

And I wouldn't worry too much about the 10-bolt. A4s help them live. I still haven't replaced mine.

ddnspider

iTrader: (26)

Thanks Jake. I think with some good air and a couple more degrees of timing like Bob pointed out, I may be able to sneak it into the 10's as-is. I also plan to bump the shift points to the stock rev limiter. A couple hundred RPM's in 1st and 2nd should help. Now I just need some decent air.....I guess I shouldn't complain too much You're in FL too so you know.

sweet99ss

iTrader: (41)

To keep my 4l60e alive with 700rwhp and 3800lb weight I kept the shifts points at 6000 rpm and kept them firm. Also always ease into it when you downshift keeps the sprag alive. That or put it into gear before mashing it....

I probably could have broke 9's by raising shift points with my cam, but I wanted the trans to live more I guess lol

ddnspider

iTrader: (26)

Glad someone else has tried something similar. How long did your trans last, or is it still going?

sweet99ss

iTrader: (41)

Yes, but it is a rpm lvl 6 trans... It has been going strong for 4 years now with big power though. On another side I sold my 408 camaro with the same lvl 6 rpm transmission and the guy broke it within 4k miles, but he broke the sprag by letting it downshift while doing a hard low gear burnout.. Only cost him $300 to have the sprag replaced....

Game ova

OP isn't using a turbo, you can get away with shortshifting a turbo car....i don't think that would work the same with a blower setup.

ddnspider

iTrader: (26)

I know what it takes to run 10s, especially with a stick. Been there done that and still only ran 8psi to do it. This blower stuff is new territory for me. I've contemplated a wastegate blower setup. This way I can run a small pulley which gives me a steeper boost curve as well as allowing me to run a boost controller. If I keep the rpms down I could still run a smaller pulley and make less boost than if I revved out to 7k or something. I think first things first I need to move the shift rpm to the stock rev limiter and get a good mark on the spark plugs. I may have to move to an ls7 maf as I found the limit of the stock maf even scaling the tune significantly.

JakeFusion

iTrader: (7)

Procharger needs RPM.

Downshifting will kill any A4. Never let it downshift unless you are going partial throttle. Otherwise, manually downshifting is your friend.

sweet99ss

iTrader: (41)

You just called it. Turbo's are overall more fun and make more power easier, but if it's a car you want to daily and not cut anything up then procharger is for you.

If you want to win races and "be the fastest around" turbo is the way to go hands down. I want to get in and be able to drive my car 16 hour round trip without thinking twice so I'm going with a d1sc on my 5th gen.

Game ova

I was trying to stay out of the turbo vs supercharger discussion, but I must ask.... why couldn't you take a 16 hr trip in a turbo car?

sweet99ss

iTrader: (41)

A/C would be number one. On top of that I mean I can just bolt the procharger kit on and take it on a 16 hr trip that weekend. Were with a turbo there is a lot more work into getting the kit sorted out and making sure you don't melt things. After that a turbo car can be practical, but it takes a lot more work and money in my experience.

I know with my f-body it took me awhile to get the car to stay cool. It never truly stayed cool during pulls until I added the big 3" radiator and HO Spal cooling fans...

For my car a centri made more sense also by the way it puts the power down. I plan on keeping stock drivetrain and street tires. It makes power linear so I won't melt the tires off everywhere. Turbo would make to much power if that makes any sense lol.

Each power adder has its place. I love turbo's and my favorite power adder by far in fun factor and ease of power... My second favorite power adder is a procharger because it's insanely simple to install and have running in a weekend. Put it on and forget about it.

ddnspider

iTrader: (26)

After having a turbo setup and a blower setup, there are definite advantages to both. The torque wave of a turbo is awesome....but I also think it would kill my 4L60E The linear power of the blower helps with traction. I don't like that it costs HP to turn the blower, but love how clean the install was and that I can run a normal header/exhaust setup and keep the hot side out of the engine bay. Being able to adjust the boost easily with a turbo setup is obviously a win. Just pluses and minuses to both. I'll probably have another turbo setup at some point, but for now the blower is a good time.

Game ova

Before the Th400 swap, I would do the same thing....drive anywhere in the country. The t56 was ultra highway friendly, even with 2:73 the rpm aren't ridiculously high.... But high enough to where I limit the drive distance to 2hrs which is the distance to the 1/4 mile track. As far as the pump, I just put new brushes in mine.... no worries there.

ddnspider

iTrader: (26)

what kind of rpm do you turn at 70?

Game ova

It's turning 2500

ddnspider

iTrader: (26)

Thats not bad at all, those gears are definitely helping.