jdoclogan
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Thought I would start another thread evolving from the Harrington Video thread in the Harrington forum:
I just finished putting together the #41 Sebring Alpine's front axle. I will finish up with the LSD (4.55) rear end tomorrow. We must love putting in the tremendous amount of hours. Whew, and sweat with the occasional blip blip blip.
REPLY: Jumpinjan
On the Tedder Project (Newsletter article back in the day) Ian & I used a 4:22 originally for Mid-Ohio. It was too much. We put a 3:70 gear in it and lap times dropped like many, many seconds.
Jan
I assume that the braking was critical as you carried speed into the corners with the 3:70 gear.
So question: What are the best brake shoes/pads for racing an Alpine?
I literally have several rear ends except the 3:70 which I believe comes from a Hillman.
REPLY:Alpine 64
The first gear in the alpine is so low that the 4.22 makes it barely useful on a street car... And utterly useless on track... A 4.55 would be useful for a hill climb.... I don't think that good on a road circuit.
While Jerry will have overdrive to help with the higher speed sections I'd think the 3.89 would be more useful as a final drive as it will lengthen 2nd gear which is more useful.
Running an alpine on track it's all about carrying speed, i found many corners can be carried in 3rd... A taller 2nd gear would offer more advantage than any acceleration offered by a very short final drive... Just my opinion
Here are some calculations made by Roy Stetina back in the 1960s while he raced his #21 Alpine throughout the mid-west/east coast. My recent acquisition of the Stetina race car came with these calculations. Note: Full page calculations reference Mid-Ohio Elkhart (upper right of document).
The #41 came with a 3:89 installed after its California racing time period 1962-1976. It also had the 4:55 LSD rear end with other parts. From my understanding at this point I would think the 4:55 would be good for hill climbs or autocross. A 3:70 or 3:89 would be best for the track. I also have several 4:22s.
I just finished putting together the #41 Sebring Alpine's front axle. I will finish up with the LSD (4.55) rear end tomorrow. We must love putting in the tremendous amount of hours. Whew, and sweat with the occasional blip blip blip.
REPLY: Jumpinjan
On the Tedder Project (Newsletter article back in the day) Ian & I used a 4:22 originally for Mid-Ohio. It was too much. We put a 3:70 gear in it and lap times dropped like many, many seconds.
Jan
I assume that the braking was critical as you carried speed into the corners with the 3:70 gear.
So question: What are the best brake shoes/pads for racing an Alpine?
I literally have several rear ends except the 3:70 which I believe comes from a Hillman.
REPLY:Alpine 64
The first gear in the alpine is so low that the 4.22 makes it barely useful on a street car... And utterly useless on track... A 4.55 would be useful for a hill climb.... I don't think that good on a road circuit.
While Jerry will have overdrive to help with the higher speed sections I'd think the 3.89 would be more useful as a final drive as it will lengthen 2nd gear which is more useful.
Running an alpine on track it's all about carrying speed, i found many corners can be carried in 3rd... A taller 2nd gear would offer more advantage than any acceleration offered by a very short final drive... Just my opinion
Here are some calculations made by Roy Stetina back in the 1960s while he raced his #21 Alpine throughout the mid-west/east coast. My recent acquisition of the Stetina race car came with these calculations. Note: Full page calculations reference Mid-Ohio Elkhart (upper right of document).
The #41 came with a 3:89 installed after its California racing time period 1962-1976. It also had the 4:55 LSD rear end with other parts. From my understanding at this point I would think the 4:55 would be good for hill climbs or autocross. A 3:70 or 3:89 would be best for the track. I also have several 4:22s.
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