RPM ?
 

95 camaro, 3200lbs roughly, 350ci/3sd/auto, 5.13 gear. 10.5x30 tire...what rpm will that be in the 1/8th mile? tks for any suggestions,,,

Re: RPM ?
 

not enough info for accurate answer but based on what you provided, 6400 rpm max

Re: RPM ?
 

thankyou

Re: RPM ?
 

Go to TCIAUTO.Com On their web sight they have a section for Tech Center, Click on that and then go to technical resources. Then click on Racing calculators. You can figure any of the following 4 with 3 of the variables known.

Rear gear ratio
Tire diameter
Engine rpm
Miles Per Hour.

They have many useful calculators at the same place.

Re: RPM ?
 

This formula requires knowing trap speed - which like, if you know that you probably already know what the rpm was:

RPM= (MPH?Gear*Ratio?336) / Tire*Diameter
​

Re: RPM ?
 

WAG


60 Foot ET = 1.5245
330 Foot ET = 4.5285
1/8 Mile ET = 7.1393
1/8 Mile MPH = 93.8206
1000 Foot ET = 9.4059
1/4 Mile ET = 11.3265
1/4 Mile MPH = 117.8254

5660 RPM @ 660 - with some Converter Slippage


Stan

Re: RPM ?
 

You will need to adjust for converter slippage.


Equation (mph * 5.13 * 336) / 30
Value of mph Evaluated Equation
_70.00000 4021.9
_72.50000 4165.6
_75.00000 4309.2
_77.50000 4452.8
_80.00000 4596.5
_82.50000 4740.1
_85.00000 4883.8
_87.50000 5027.4
_90.00000 5171
_92.50000 5314.7
_95.00000 5458.3
_97.50000 5602
100.00000 5745.6
102.50000 5889.2
105.00000 6032.9
107.50000 6176.5
110.00000 6320.2
112.50000 6463.8
115.00000 6607.4
117.50000 6751.1
120.00000 6894.7
122.50000 7038.4
125.00000 7182
127.50000 7325.6
130.00000 7469.3


Stan