View Full Version : RPMs at the end of the 1/4 mile
na svt
07-22-2011, 09:04 AM
What RPMs are you seeing at the end of the quarter mile? Please provide your gear ratio, tire size and converter and also your shift points.
RacerX
07-22-2011, 09:13 AM
I hit 5500 in third @ LVD.
1st was 6500
2nd was 6300
3rd was set for 6300 also.
4.10s
255/45-18 Nitto Invos.
Stock Converter
RR|Suki
07-22-2011, 09:19 AM
around 6000rpm
4.10 gears
295/45/18 tires
1st gear shifts at around 6800 if I don't load up too much, otherwise it'll hit the limiter. shift point is actually set some what lower than that.
2nd gear 6500 or so
3rd doesn't get to the end, rev limit is set to 7000
* oh yeah PI3000 converter
na svt
07-22-2011, 10:57 AM
around 6000rpm
4.10 gears
295/45/18 tires
1st gear shifts at around 6800 if I don't load up too much, otherwise it'll hit the limiter. shift point is actually set some what lower than that.
2nd gear 6500 or so
3rd doesn't get to the end, rev limit is set to 7000
* oh yeah PI3000 converter
n/a or FI?
RR|Suki
07-22-2011, 11:12 AM
Supercharger, I doubt any NA marauder will make it anywhere near 120mph at the end of the 1/4 for a while. I'm still waiting for the 12.9 NA run :D
na svt
07-22-2011, 11:23 AM
Supercharger, I doubt any NA marauder will make it anywhere near 120mph at the end of the 1/4 for a while. I'm still waiting for the 12.9 NA run :D
I din't notice the MPH.
RR|Suki
07-22-2011, 12:42 PM
I din't notice the MPH.
you can tell MPH based on the RPM and gearing. There are calculators out there that help with that. In our cars with 4.10 gears and 28" or so tall tires 3rd gear 5000rpm = ~103mph, 5500rpm = ~113, 6000rpm = ~ 124mph etc.
na svt
07-22-2011, 12:50 PM
you can tell MPH based on the RPM and gearing. There are calculators out there that help with that. In our cars with 4.10 gears and 28" or so tall tires 3rd gear 5000rpm = ~103mph, 5500rpm = ~113, 6000rpm = ~ 124mph etc.
I have the calculators but I didn't see the MPH in his repsonse.
Vortech347
07-26-2011, 11:32 AM
Not enough, like 4300rpm in 3rd.
na svt
07-26-2011, 11:57 AM
Not enough, like 4300rpm in 3rd.
No kidding, you need more gear.
Vortech347
07-26-2011, 12:58 PM
No kidding, you need more gear.
If this car wasn't my daily she'd have 4.56's in the rear.
Altitude up here destroys anything N/A
Micahdogg
08-05-2011, 09:11 AM
Sounds like 4.30's and 26's would be a better combo on a stockish MM.
na svt
08-05-2011, 10:04 AM
Sounds like 4.30's and 26's would be a better combo on a stockish MM.
At a minumum the mustangs are running 4.10s and 26" tires. In a Marauder 4.10s and stock tires don't allow for enough RPM.
Fosters
08-05-2011, 12:44 PM
At a minumum the mustangs are running 4.10s and 26" tires. In a Marauder 4.10s and stock tires don't allow for enough RPM.
I have 4.30s in the mach, and 26" tires... and if I could go back I'd do 4.56s. Just because of the manual vs auto, I think I will go 4.30s in the MM too, and swap out tires at the track to 26"s...
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