Boost and Gear selection?
Boost and Gear selection? Well with the car getting ready for a completely new setup I need to prepare here. Anyways I have an 04 GTO that I am currently doing a Solid Rear Axle Conversion on (yes in my garage). Stenod will be building the TT setup for the car as well as installing BS3. The car has a th400 and a 4400stall.
Quick rundown of the car:
408, 240cc ET heads, Custom Cam, Moser 9", TH400 (std. gearing), Twin Turbos (T70s or close to), Big Stuff 3, Plenty of fuel.
My intentions are to run a 28x12" tire on a 15x11" wheel. Yes it is going to be minitubbed!
The Moser 9" I bought has 3.50 gears in it and I am thinking I may need to swap them out. I would like to hear from the turbo guys on this. Which gears should I go with in the Moser 9". The car will be making 1200rwhp or so when it is complete. Though I intend to race the car at lower boost settings for atleast 6months.
So should I keep the 3.50s until I bump the boost up down the road or should I sell the 3.50 section I have and get some different gears?
Quick rundown of the car:
408, 240cc ET heads, Custom Cam, Moser 9", TH400 (std. gearing), Twin Turbos (T70s or close to), Big Stuff 3, Plenty of fuel.
My intentions are to run a 28x12" tire on a 15x11" wheel. Yes it is going to be minitubbed!
The Moser 9" I bought has 3.50 gears in it and I am thinking I may need to swap them out. I would like to hear from the turbo guys on this. Which gears should I go with in the Moser 9". The car will be making 1200rwhp or so when it is complete. Though I intend to race the car at lower boost settings for atleast 6months.
So should I keep the 3.50s until I bump the boost up down the road or should I sell the 3.50 section I have and get some different gears?
I like my 2.75 gears. When I had my 3.50 gears it was impossible to hook and didn't spool well, sucked on the highway too.
You will probably push through the stall, 4400 is really loose on a turbo car. Mine stalls to 3000 n/a and 4000 on 10psi, 4500 on 15psi.
You will probably push through the stall, 4400 is really loose on a turbo car. Mine stalls to 3000 n/a and 4000 on 10psi, 4500 on 15psi.
Originally Posted by Zombie
I like my 2.75 gears. When I had my 3.50 gears it was impossible to hook and didn't spool well, sucked on the highway too.
You will probably push through the stall, 4400 is really loose on a turbo car. Mine stalls to 3000 n/a and 4000 on 10psi, 4500 on 15psi.
You will probably push through the stall, 4400 is really loose on a turbo car. Mine stalls to 3000 n/a and 4000 on 10psi, 4500 on 15psi.
Originally Posted by Pro Stock John
I'd start with the 3.50's, but you might end up swapping to 3.25's at some point.
Oh well
Originally Posted by TrakDay
My stall was built around a Procharger setup. Yeah I am pretty certain I will be changing out the gears. Looks like I need to decide soon!
