36 replies to this topic

[Rosslin Racing]

what is everyone using on the final drive and sprocket?
I have the standard set up at the moment myself.

[roofless]

what is everyone using on the final drive and sprocket?
I have the standard set up at the moment myself.

I'm running the standard set, the fast set is too much for daily use for me.

[Monte Busa]

Tooth count? i was running a 18/18 (front and rear) and went to a 17/18 - helps with standing starts as the ratio is lower, but lost 4MPH at 6000RPM in 6th (56MPH at 6000RPM in 6th)...

I'm going to try it at the track day coming up the week after next - should suit the track well as the terminal speed is something like 105 to 110 MPH on the longest straight in my STi...

what is everyone using on the final drive and sprocket?
I have the standard set up at the moment myself.

I'm running the standard set, the fast set is too much for daily use for me.

[Rosslin Racing]

Tooth count? i was running a 18/18 (front and rear) and went to a 17/18 - helps with standing starts as the ratio is lower, but lost 4MPH at 6000RPM in 6th (56MPH at 6000RPM in 6th)...

I'm going to try it at the track day coming up the week after next - should suit the track well as the terminal speed is something like 105 to 110 MPH on the longest straight in my STi...

what is everyone using on the final drive and sprocket?
I have the standard set up at the moment myself.

I'm running the standard set, the fast set is too much for daily use for me.

Can you keep us posted as to what your resaults are?
the diffrent size sprockets are they special Promotive made or Yamaha Race?

[roofless]

Tooth count? i was running a 18/18 (front and rear) and went to a 17/18 - helps with standing starts as the ratio is lower, but lost 4MPH at 6000RPM in 6th (56MPH at 6000RPM in 6th)...

I'm going to try it at the track day coming up the week after next - should suit the track well as the terminal speed is something like 105 to 110 MPH on the longest straight in my STi...

what is everyone using on the final drive and sprocket?
I have the standard set up at the moment myself.

I'm running the standard set, the fast set is too much for daily use for me.

Can you keep us posted as to what your resaults are?
the diffrent size sprockets are they special Promotive made or Yamaha Race?

all my sprockets have come from the boys at Pro-mo.

[lotusv6seven]

Tooth count? i was running a 18/18 (front and rear) and went to a 17/18 - helps with standing starts as the ratio is lower, but lost 4MPH at 6000RPM in 6th (56MPH at 6000RPM in 6th)...

I'm going to try it at the track day coming up the week after next - should suit the track well as the terminal speed is something like 105 to 110 MPH on the longest straight in my STi...

Hi guys

I´m running a 18th sprocket because of a 28 step chain for 17th sprocket, become too long. I´ve tried to shorten it to 27 steps but then it´s too short to join and a 28 one is too much loosen . How did you fit it?
You can see how fast the car is with a 18th at guadix circuit in Spain in promotive page, or a new one:

http://www.youtube.c...re=channel_page





As you can see, 6th gear never works (5th gear at end of main straight). Other tracks with longer straights surely need a 18, even 19th sprocket.

Cheers

Edited by lotusv6seven, 19 May 2009 - 07:46 AM.

[roofless]

Tooth count? i was running a 18/18 (front and rear) and went to a 17/18 - helps with standing starts as the ratio is lower, but lost 4MPH at 6000RPM in 6th (56MPH at 6000RPM in 6th)...

I'm going to try it at the track day coming up the week after next - should suit the track well as the terminal speed is something like 105 to 110 MPH on the longest straight in my STi...

Hi guys

I´m running a 18th sprocket because of a 28 step chain for 17th sprocket, become too long. I´ve tried to shorten it to 27 steps but then it´s too short to join and a 28 one is too much loosen . How did you fit it?
You can see how fast the car is with a 18th at guadix circuit in Spain in promotive page, or a new one:

http://www.youtube.c...re=channel_page





As you can see, 6th gear never works (5th gear at end of main straight). Other tracks with longer straights surely need a 18, even 19th sprocket.

Cheers

brilliant videos I'd like a 19 for motorways - get the revs down little perhaps at 70mph ( ish )

[Rosslin Racing]

Tooth count? i was running a 18/18 (front and rear) and went to a 17/18 - helps with standing starts as the ratio is lower, but lost 4MPH at 6000RPM in 6th (56MPH at 6000RPM in 6th)...

I'm going to try it at the track day coming up the week after next - should suit the track well as the terminal speed is something like 105 to 110 MPH on the longest straight in my STi...

Hi guys

I´m running a 18th sprocket because of a 28 step chain for 17th sprocket, become too long. I´ve tried to shorten it to 27 steps but then it´s too short to join and a 28 one is too much loosen . How did you fit it?
You can see how fast the car is with a 18th at guadix circuit in Spain in promotive page, or a new one:

http://www.youtube.c...re=channel_page





As you can see, 6th gear never works (5th gear at end of main straight). Other tracks with longer straights surely need a 18, even 19th sprocket.

Cheers

Way to go!! looked as if you had abit of two wheel cornering.
what suspension set up are you using?
thanks for the input.

[lotusv6seven]

[/quote]


Way to go!! looked as if you had abit of two wheel cornering.
what suspension set up are you using?
thanks for the input.
[/quote]

Yes. Often three wheels, almost two wheels. Mini miglia suspension set up.
Front wheels are always slipping, because of LSD is no fitted yet, but Tran-X is coming!

Finally I´ve given up to fit a 27 step chain. Even diff was loosened to gain a couple of mm, but It can not be joined.We´ll see how 28 step chain and 17th sprocket work this sunday.

Cheers

Regards from south of spain

[Rosslin Racing]

Any news on how that chain set up worked in sunny spain?
I have 17/16 and will be running 13" wheels.

Edited by Rosslin Racing, 25 May 2009 - 07:34 PM.

[lotusv6seven]

Any news on how that chain set up worked in sunny spain?
I have 16/16 and will be running 13" wheels.

I´m running 10´´ wheels.

Finally chain couldn´t be fitted in 17th sprocket, and we had to use a 18th one again. Next time I´ll try to release diff before joining. By the way, higher tyres pressure, softer suspensión in front and harder in rear made a wonderful running, almost 3 sec faster.

Cheers

Edited by lotusv6seven, 25 May 2009 - 12:07 PM.

[Rosslin Racing]

what tyres you running on? I have the 17 sprocket so i will now have to count the chain links

[jwb_moto]

can you get half links for bike chains? at work we use chains to drive conveyors and if we cant get a happy meduim by taking a complete link out we put a half link in.

[lotusv6seven]

can you get half links for bike chains? at work we use chains to drive conveyors and if we cant get a happy meduim by taking a complete link out we put a half link in.

I don´t know if I can get it, but that´s what I need.
I´m looking for

[jwb_moto]

what specs are the chains on these just standrd bike chains or the "O" - ring type?, pitch etc? il have a search