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View Full Version : 4.10 gears? What rpm you turning?


zr1assassin
03-03-2018, 05:19 PM
I was told when I purchased the car the only modification to it was lower gearing in the ***, I am turning right at 2000 RPM's in six gear 70 miles per hour, does that sound right? What RPM's are you guys turning with stock gearing at 70 in 6th?

efnfast
03-03-2018, 05:28 PM
I've got 3.73's and turn about 2 grand at 80

zr1assassin
03-03-2018, 05:32 PM
I've got 3.73's and turn about 2 grand at 80

Well then that makes sense, looks like this car does have 4.10s possibly

G8nightman
03-03-2018, 05:49 PM
7101here you go


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zr1assassin
03-03-2018, 06:01 PM
7101here you go


Sent from my iPhone using ZR-1 Net Registry (http://r.tapatalk.com/byo?rid=90383)

Perfect! Thank you....i assume this won't cost me $52? 😂😂🤣🤣🤣

efnfast
03-03-2018, 06:35 PM
Marc's chart show 76 at 2K. Wonder if you have 4.30's?

zr1assassin
03-03-2018, 06:43 PM
Marc's chart show 76 at 2K. Wonder if you have 4.30's?

Well it was just a tinge under 2k at 70. The PO said 4.10s

Mystic ZR-1
03-03-2018, 06:44 PM
I like the 338mph @ 7500 in 6th with stock gears!

Ccmano
03-03-2018, 07:52 PM
Cool, just remember the tachs on our cars can be inaccurate. Check your tach against a scanner or Tech1. It’s unlikely someone would put 4:30s in an otherwise stock car.
H
:cheers:

efnfast
03-03-2018, 07:56 PM
I like the 338mph @ 7500 in 6th with stock gears!
I'd try that.

zr1assassin
03-03-2018, 08:09 PM
Cool, just remember the tachs on our cars can be inaccurate. Check your tach against a scanner or Tech1. It’s unlikely someone would put 4:30s in an otherwise stock car.
H
:cheers:

Ya I'm pretty sure they're 4.10s

Mystic ZR-1
03-03-2018, 09:17 PM
Cool, just remember the tachs on our cars can be inaccurate. Check your tach against a scanner or Tech1. It’s unlikely someone would put 4:30s in an otherwise stock car.
H
:cheers:

Even if the tach was 10% high, you'd still be over 300mph
with stock gears!!!

BigJohn
03-03-2018, 09:25 PM
Even if the tach was 10% high, you'd still be over 300mph
with stock gears!!!

Did you get your new tires on your BMW?