928 automatics

[jojomanx]

Questions
1. 3 vs 4 speed, what are the diff ratio differences?

2. Is there a diff ratio upgrade available for the 3 speed?

[jojomanx]

My wifes 928 is running an LS1

[jojomanx]

Currently running a higher rpm than it would be in a camaro or corvette.

Runs great besides that but we want to make it a 25 + mpg car too!

[SMTCapeCod]

Nice! Bet that thing is a terror.
Seems like you made a good pick with the wife, too!

Most of my experience to date has been with manual trans cars.

That said, I know the Euro/RoW variants of the earlier cars have lower gear rations (higher numerically) than the US versions, making them feel scrapier to many. I would assume...always dangerous..that the same may be true for autos.

With the 4 spds, I know that most are 2.42, but I think there is a 2.27 or similar, too.

Best bet is probably to call 928 intl and ask about what they have available that would be compatible with your configuration.

[XLR8928]

Hey jojomanx-
good to see you on the board. Looking forward to going out to spring mountain sometime. (there is a 928 with an LS7 that runs there sometimes.)
BTW-car is lookin good
-Kerry

[jojomanx]

Yes but with my LS1 BMW. The porsche is the misses!

[jojomanx]

Originally Posted by SMTCapeCod

Nice! Bet that thing is a terror.
Seems like you made a good pick with the wife, too!

Most of my experience to date has been with manual trans cars.

That said, I know the Euro/RoW variants of the earlier cars have lower gear rations (higher numerically) than the US versions, making them feel scrapier to many. I would assume...always dangerous..that the same may be true for autos.

With the 4 spds, I know that most are 2.42, but I think there is a 2.27 or similar, too.

Best bet is probably to call 928 intl and ask about what they have available that would be compatible with your configuration.

Thanks!
But are you talking about the diff?
I didnt know it would be so low!?

[Danglerb]

When you add in the gear ratios its about typical, top gear in the manual the differential is the final drive ratio, not sure on the automatics.

[MPDano]

Oh Yeah!!! Awesome almost final pics. What about Nevada Emissions?

[Danglerb]

LV? Jojo did you work with the Renegade guys?

[MPDano]

Originally Posted by Danglerb

LV? Jojo did you work with the Renegade guys?

He's already done this to a BMW, I'm sure he didn't need to.

[XLR8928]

Originally Posted by MPDano

He's already done this to a BMW, I'm sure he didn't need to.

Leo,
I've seen both cars...nice work. I may try to get his assistance with a 5.3 install in my K1500.
So....what ya think Jojomanx?
-Kerry

[jojomanx]

Originally Posted by Danglerb

LV? Jojo did you work with the Renegade guys?

No ... they wanted $2000 as a minimum!

[jojomanx]

Originally Posted by XLR8928

Leo,
I've seen both cars...nice work. I may try to get his assistance with a 5.3 install in my K1500.
So....what ya think Jojomanx?
-Kerry

Count on me Kerry!

[jojomanx]

Originally Posted by MPDano

Oh Yeah!!! Awesome almost final pics. What about Nevada Emissions?

Nevada emissions? Classic Rod plates

[jojomanx]

Originally Posted by Danglerb

When you add in the gear ratios its about typical, top gear in the manual the differential is the final drive ratio, not sure on the automatics.

This is what I know about my BMW.

before the LS1 the tranny on 5th was a 1 to 1 ratio and the diff was a 3.65 to 1

Now with the camaro tranny its final gear it .76 to 1 ratio with a new diff at the same 3.65 to 1

On 6th gear Im doing 1500 rpm at 75 mph.

Over 25 mpg on highway.

[MPDano]

Originally Posted by jojomanx

Nevada emissions? Classic Rod plates

Niceee. That's how you do it to it.

[MPDano]

Originally Posted by jojomanx

On 6th gear Im doing 1500 rpm at 75 mph.

6 Gears? Dammit Jim (Star Trek), the Video!!

[harborman]

Why fool with some Government Motors engine, put at least a European motor in the 928, perhaps a Ferrari V8, but my car stays all Porsche!

[jojomanx]

Originally Posted by harborman

why fool with some government motors engine, put at least a european motor in the 928, perhaps a ferrari v8, but my car stays all porsche!

lol !