BritishV8 Forum

General Category => Race Cars and Motorsports => Topic started by: MadMarx on October 21, 2019, 02:15:56 AM

Title: Nürburgring racing
Post by: MadMarx on October 21, 2019, 02:15:56 AM
I had some questions about the car regarding different tires and compounds.
I've booked a race with forecasted rain.
The good thing, on Friday I could test things in dry, and on Saturday in the wet...to have a direct compare.
https://www.youtube.com/watch?v=NhPsE-e9ixo

https://www.youtube.com/watch?v=8ZciYrkqBFA
Title: Re: Nürburgring racing
Post by: Bland on October 21, 2019, 12:50:15 PM
Hi Christian,

What did you end up using for rain tires and what are you running for slicks?

Regards,

Tim
Title: Re: Nürburgring racing
Post by: MadMarx on October 22, 2019, 03:57:01 PM
You've PM
Title: Re: Nürburgring racing
Post by: roverman on October 24, 2019, 11:19:09 AM
Great video's ! Looks like you're using about 5,700 as a max rpm ?  Seems low for a full- worked 4L ? Car is ratio limited ? Roller cam ?  Billet crank ?   Cheers, Art G.
Title: Re: Nürburgring racing
Post by: MadMarx on October 25, 2019, 04:27:16 AM
we changed the configuration of the engine.
It was a high reving engine.....but we backed off the top end power about 50 hp and lifted up the torque significantly. Much handier to drive than using high revs.

But certainly the engine can do 8k technically but from the cam power stops at about 7K.

Flat tappet cam, roller rockers, billet crank.
Title: Re: Nürburgring racing
Post by: roverman on November 07, 2019, 07:46:29 PM
Roller cam not allowed ?   I know a guy with 1 or 2 rollers........
Title: Re: Nürburgring racing
Post by: MadMarx on November 14, 2019, 02:19:47 PM
Roller Cams are allowed.
What would be the advantage?
Title: Re: Nürburgring racing
Post by: roverman on November 14, 2019, 02:50:42 PM
Less drag and wear. Faster opening and closing of valves= more HP and torque,(with the right cam).    Art.
Title: Re: Nürburgring racing
Post by: MadMarx on November 16, 2019, 04:28:07 AM
I maybe build another engine and try out rollers.