Fuel rails and funnys

[dragnut]

Hi guys,

i was just wondering if anyone new why fuel rails and fuel cars sound so different. (well they do to me) is it because they are differnet motors. I always thought they were relativly the same. Is it because they have differnet fuel systems or is it because the chassis' are different sizes or something?

[flying toilet]

dragnut said:

Hi guys,

i was just wondering if anyone new why fuel rails and fuel cars sound so different. (well they do to me) is it because they are differnet motors. I always thought they were relativly the same. Is it because they have differnet fuel systems or is it because the chassis' are different sizes or something?

85%...the cackle has gone...

[nitromaniac]

dragnut said:

Hi guys,

i was just wondering if anyone new why fuel rails and fuel cars sound so different. (well they do to me) is it because they are differnet motors. I always thought they were relativly the same. Is it because they have differnet fuel systems or is it because the chassis' are different sizes or something?

l asked my US drag racing friends & this is the reply l received:
l guess for several reasons,the longer header pipes, the enclosed engine (fc body)everything that l see they are basically the same motor, fuel system etc. Also the same cubic inch displacement.

[dragnut]

Cool! Thanks guys!

[sagerhead]

flying toilet said:

85%...the cackle has gone...

Sorry newb here question here, I thought the FIA rules were 90% nitromethane and the NHRA was 85%?
Has this changed or have I got it wrong?

That nitro crackle is awesome.