Engine/Transmission match

Engine/Transmission match

htf
Joined: May 5th, 2001, 4:29 pm

September 4th, 2008, 5:08 am #1

This subject does not bare to any specific project, just a general thought:
If I upgrade my engine, sort of mildly - (120-130 hp) would the transmission take it well?
What is the top hp it will take, at normal street drive with occasional stepping on it.



HaXD
Herzel, in Israel

WhiteX
The late Green '85 X1/9
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Joined: December 21st, 2004, 3:04 am

September 4th, 2008, 8:24 am #2

So.... 1) you've got nuttin' to worry about... and 2) from the way you baby that car... if you try mashing the throttle up to 6500 once in awhile, you'd probably be satisfied with what you've already got!

My best,



Tony
Black Tooth and me... since 1983!
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htf
Joined: May 5th, 2001, 4:29 pm

September 4th, 2008, 10:12 am #3

WhieX is probbably at about 150K miles (speedo not connected). sometimes in the future (a few years is just around the corner) I may have to rebuild the engine. That would be the right time do up the horses.
Just thinking ahead Tony...


HaXD
Herzel, in Israel

WhiteX
The late Green '85 X1/9
Last edited by htf on September 4th, 2008, 10:13 am, edited 1 time in total.
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Joined: October 15th, 2007, 3:50 am

September 4th, 2008, 3:05 pm #4

This subject does not bare to any specific project, just a general thought:
If I upgrade my engine, sort of mildly - (120-130 hp) would the transmission take it well?
What is the top hp it will take, at normal street drive with occasional stepping on it.



HaXD
Herzel, in Israel

WhiteX
The late Green '85 X1/9
It's usually not BHP that stresses the gears, it's torque. I sort of remember the stock X transaxle is good for ~150 lb/ft, 175 Bhp. And, the diff carrier can fail.

Oh, reving the engine up to say 9,000 RPM with an up rated X motor and dropping the clutch is likely going to break something if there are good sticky tires in the rear.
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Joined: June 18th, 2008, 2:29 am

September 4th, 2008, 5:41 pm #5

WhieX is probbably at about 150K miles (speedo not connected). sometimes in the future (a few years is just around the corner) I may have to rebuild the engine. That would be the right time do up the horses.
Just thinking ahead Tony...


HaXD
Herzel, in Israel

WhiteX
The late Green '85 X1/9
Herzel - Whats your method to 130 horses ?
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Joe F
Joe F

September 4th, 2008, 7:45 pm #6

It's usually not BHP that stresses the gears, it's torque. I sort of remember the stock X transaxle is good for ~150 lb/ft, 175 Bhp. And, the diff carrier can fail.

Oh, reving the engine up to say 9,000 RPM with an up rated X motor and dropping the clutch is likely going to break something if there are good sticky tires in the rear.
http://www.youtube.com/watch?v=Oq_b_VZH0oc

This car is hitting ET"s in the high 10's!

Joe F
87 Bert
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htf
Joined: May 5th, 2001, 4:29 pm

September 4th, 2008, 8:43 pm #7

Herzel - Whats your method to 130 horses ?



HaXD
Herzel, in Israel

WhiteX
The late Green '85 X1/9
Quote

htf
Joined: May 5th, 2001, 4:29 pm

September 4th, 2008, 10:20 pm #8

http://www.youtube.com/watch?v=Oq_b_VZH0oc

This car is hitting ET"s in the high 10's!

Joe F
87 Bert



HaXD
Herzel, in Israel

WhiteX
The late Green '85 X1/9
Quote

Joined: December 1st, 2007, 10:55 pm

September 4th, 2008, 10:50 pm #9

http://www.youtube.com/watch?v=Oq_b_VZH0oc

This car is hitting ET"s in the high 10's!

Joe F
87 Bert
is running a 3 liter alfa v 6 with matching alfa trans. totally different story.

reyy
longtime fiat freak
74 x1/9
san dimas, ca
USA
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Joined: June 15th, 2008, 8:54 pm

September 5th, 2008, 3:11 am #10

Comments says the gearbox is from a Ritmo 130TC Abarth and the engine is from a Ritmo 105TC with an added turbo.
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