dB Noise Measurements

[barter]

Has anyone measured their Ultima with a noise meter or had it measured at a track day?

I'm thinking of build a GTR with a moderatly standard 350Ci smallblock chevy (425 bhp) and don't want to end up not being able to take it on normal track days. Exhaust system not yet decided.

[barter]

101dB-103dB will do me if I can keep it late low. Although it will bar me from my local circuit, Goodwood. Shall have to invest in a good exhaust system.

Rev - I'll don't want to embarrass my friends too much as I dissappear into the distance.

[barter]

quote:
I guess you will be taking a different road then....

With my navigator....probably yes!

[barter]

quote:
I had my GTR SVA'd in March. It has a 406cid (about6.6L) rated at about 425bhp with a factory stainless exhaust. We set the rev counter to 6-cylinder and at 4,500rpm it showed only 96dB !!! I intend taking a trip to Goodwood & see what they get on their equipment now I've re-set the rev counter !!!

Could I ask where you got the engine from?
I assume the real revs were 3,375rpm. I think they measure 66% max rpm don't they? Neat trick for SVA though

>> Edited by barter on Thursday 11th April 20:52

[barter]

ultimapaul - I'd like to look over your GTR at the open day next week if thats OK. Seems we are in the same industry.