X-post of Al's Dyno Run Video

[Al N.]

[yellowss7]

Alright Al, I'll bite, where were you on the Revs when you shut it down? Sounded like there was more there. Tom

[Al N.]

Tom-I was using a 7500 redline...which is probably a few hundred conservative...but it was the first time on the dyno and all...

[SR27.Seth]

Tom-I was using a 7500 redline...

 

Funny- I thought the same thing that tom did- If the car was in 4th (which it should be) it sounded like she only pulled to 6000 or 6500 max, When I have the time I'll post our cars pulling to 7500- much more violent sounding.

Careful with those portable rollers- they can be quite inaccurate with their numbers

[Al N.]

Thanks Seth...it's a permanent dyno install.

 

Regarding what gear...if the Caterham 6 speed box is 1 to 1 direct in 6th as Cherik states...isn't that the right gear?

[yellowss7]

Al, 6th is 1:1 on the Caterham 6 speed, so yes it's the right gear. Just sounded so smooth. Tom

[SR27.Seth]

Wow!- I had no Idea the Caterham box was soooo close ratio!- 95% of RWD gear boxes are 4th 1:1, and I have only ever seen one or 2 5th gear 1:1, Even in Ford Motorsports infamous 7 speed the 4th was .955 and 5,6,7 were all overdrive. But a 6th 1:1- Boggles the mind. Does anyone know the other ratios?

 

 

...it's a permanent dyno install.

 

Sorry to offend Al, at first viewing I thought the car was in the back of a big trailer- upon a second look I now see that it is in a garage

[yellowss7]

Caterham 6 speed ratios

 

1st 2.69

2nd 2.01

3rd 1.59

4th 1.32

5th 1.13

6th 1.00