Author Topic: RPM's vs Speed  (Read 3323 times)

June 14, 2006, 07:48:31 am

lesharoturbo

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RPM's vs Speed
« on: June 14, 2006, 07:48:31 am »
Could someone post what heir RPM's are at say 60 MPH and 75MPH?

I am thinking of swapping a diesel into my auto Montero and need to see if the engine speed in top gear is condusive to a diesel powerband.  Currently I see about 2400 @ 60 and just over 3000 @ 75.

I know there are other considerations with the tranny and the torque converter but I will deal with these later.  The good news is the tranny has a mechanical (cable) kickdown instead of electronic.  I just don't know about the lockup on the TC.


Thanks

Bernie

Reply #1June 14, 2006, 10:50:49 am

VwPodRacer

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RPM's vs Speed
« Reply #1 on: June 14, 2006, 10:50:49 am »
I drive a 97 1.9TD jettta with a 020 tranny and my RPM's is around 3000 at 60mph/100kms in fifth gear.

Reply #2June 14, 2006, 05:22:20 pm

tylernt

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RPM's vs Speed
« Reply #2 on: June 14, 2006, 05:22:20 pm »
Quote from: VwPodRacer
I drive a 97 1.9TD jettta with a 020 tranny and my RPM's is around 3000 at 60mph/100kms in fifth gear.
Dang that seems high. My FF code transmission does ~2600rpm @ 65mph and a titch over 3000rpm @ 75mph.

You can see what some of the various VW trannies do here:

http://scirocco.org/gears/

Just plug the numbers into the calculator.
'82 Diesel Rabbit, '88 Fox RIP, '88 Jetta (work in progress)

Reply #3June 15, 2006, 10:42:49 am

VwPodRacer

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RPM's vs Speed
« Reply #3 on: June 15, 2006, 10:42:49 am »
sorry my bad just got home with my car and its about 2500 at 100kms

Reply #4June 15, 2006, 11:27:46 am

jtanguay

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RPM's vs Speed
« Reply #4 on: June 15, 2006, 11:27:46 am »
is 0.71 the lowest ratio for 5th gear you can get?  Any mods out there to lower that???


This is how we deal with porn spammers! You've been warned.

Reply #5June 15, 2006, 12:10:29 pm

tylernt

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« Reply #5 on: June 15, 2006, 12:10:29 pm »
Quote
is 0.71 the lowest ratio for 5th gear you can get?  Any mods out there to lower that???
There is a .68 that you can get from somewhere. There was a thread on it on VWVortex but their forums just got messed up so it may be gone.
'82 Diesel Rabbit, '88 Fox RIP, '88 Jetta (work in progress)

Reply #6June 15, 2006, 01:44:52 pm

745 turbogreasel

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Re: RPM's vs Speed
« Reply #6 on: June 15, 2006, 01:44:52 pm »
Quote from: lesharoturbo

I am thinking of swapping a diesel into my auto Montero and need to see if the engine speed in top gear is condusive to a diesel powerband.  Currently I see about 2400 @ 60 and just over 3000 @ 75.

Bernie


Thats almost exactly what I see in 5th in my 3200LB. Volvo, but most Auto trans cars came with a little  steeper gearing

Reply #7June 15, 2006, 07:25:02 pm

hillfolk'r

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RPM's vs Speed
« Reply #7 on: June 15, 2006, 07:25:02 pm »
my 7h?(from a 84 jetta td)7 whatever,i forget
 i know its at like 3-3100 at 80 mph,thats with 195-60-14s on the front
and like 2800 or so at 75,ill check goin to work tomorrow, to  be sure igot some good numbers here :wink:
Throttle cables ftw