Procharger rear gear for Dragsters

Bracket Talk

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November 05, 2022, 11:11 AM

blowerman

Procharger rear gear for Dragsters

Guys running prochargers with dragster. What gear for the rear end.My car 4link 565 4.10 right now... 4.40 RPM high at finish line.. I am thinking 3.90 or 3.70.

November 05, 2022, 01:21 PM

rradracer

I had 3.90 running 4.teens with procharged 598

November 05, 2022, 05:57 PM

topd1332

i run 4.10 but the converter will also have a affect on the rpms

November 06, 2022, 07:13 AM

Duane1791

4.10 here with M/T big bubbas, but I don’t run a 1.80 low gear!

Duane Allen

November 06, 2022, 09:29 PM

seabass

1,80 and 4.11 in the summer and 1.80 and 3.89 the rest

J.R. Baxter

""Fathom the hypocrisy of a Government that requires every citizen to prove they are insured ..but not everyone must prove they are a citizen."

2024 Miller
Rolla Competition Engines
ProCharger
Hoosier Tires
Abruzzi

November 07, 2022, 08:31 AM

Greg Kelley

When you get a good converter capable of working with 1700-2000 (or more) HP it will only slip 1-2% (or less) so trap RPM will be fine with a 4.10. I'm 3.89 (1.80 trans) and Coan recommended a 4.10 for my combo.

GK - www.MotorSportsInnovations.com
609-265-2110 GKelley@MotorSportsInnovations.com

November 09, 2022, 10:42 AM

Jodie Jent

3.89 / 1.80 low with 3197's

November 10, 2022, 09:50 PM

blowerman

Thanks everybody for the information.