Youtube SL-C on track
- Thread starter gt40fran
- Start date
Hey Jac....do the current sophisticated looking F1 cars have eight into ones....just wondering...:thumbsup:
Poseur...:coolgleam:
Only one complaint from me--- It needs an 8 into 1 exhaust, to make it sound as sophisticated as it looks.. Bit like an old ------- at the moment.
I agree - I did that on my blown LS2 Ultima
YouTube - Ultima GTR
Eh gads! Not sure "sophisticated" was the word that popped into my head, in fact I am not sure I am allowed to type it here
But something along the lines of daaaay-eeemm would do!
Thats way cool,..Crafty.
I bets thats not on the "Standard" list of Ultima options
I bets thats not on the "Standard" list of Ultima options
Wow, i have seen a picture of a 8-into-1 setup on dune buggy, but never heard one before. I have to say, thats a pretty darn awesome sound!
Heres some pictures of the dune buggy. The setup looks wild!
http://www.californiaperformance.com/tatum_with_s4.htm
I have to ask though, with the little i know about exhaust theory, it doesn't seems like the 8-into-1 is a very efficient setup. Wont some of the exhaust pulses cancel each other out rather than help pull the intake charge in? Or is this exhaust not used on engines that have cam's with a lot of overlap? Is there any performance benefit with this exhaust?
I assume that this exhaust has all 8 pipes meeting at a single collector, rather than both sides of the engine collecting 4 pipes and having those meet at 1...
Heres some pictures of the dune buggy. The setup looks wild!
http://www.californiaperformance.com/tatum_with_s4.htm
I have to ask though, with the little i know about exhaust theory, it doesn't seems like the 8-into-1 is a very efficient setup. Wont some of the exhaust pulses cancel each other out rather than help pull the intake charge in? Or is this exhaust not used on engines that have cam's with a lot of overlap? Is there any performance benefit with this exhaust?
I assume that this exhaust has all 8 pipes meeting at a single collector, rather than both sides of the engine collecting 4 pipes and having those meet at 1...
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With current cam durations collector is best built in two lots of 180° before merging into one tailpipe or a two in one out muffler. With a rethink of exhaust duration the one collector with 90° intervals can & does work. Built one for a jet boat ages ago that had a circular collector with primaries arranged so that with two collectors we were able to convert from 8/1@90°, 4/1 @180°,4/1 odd. No dyno work was done, but highest rpm was pulled on 8/1 ( Jet unit makes for a primitive dyno anyway Sounded terrific to me, Q/town harbourmaster had his own opinion
Sounded terrific to me, Q/town harbourmaster had his own opinionWatching closely :2thumbsup:
The SL-C is fantastic looking. I'll have to agree with Mr. Mac, needs something... a high rpm Trans Am motor, some snakes... not that big cube non-musical Chevy :tongue3: sound too much like a 'Vette
Congrats, that is really sharp looking, More videos and in car-cam please!
Sandy
Congrats, that is really sharp looking, More videos and in car-cam please!
Sandy
My system is stock cast iron vette manifolds, stock 2.5" cats, with a custom twin-skinned exhaust tip - made to replicate the rear opening of the Ultima.
This was thrown together to get the car on the road for some testing.
The plan is to put a muffler on it (in place of the tip) for registration...I'm in Hong Kong and expecting a grilling from the regulatory bodies on emissions... so the ideas was stock manifolds etc for registration and switch to headers later with 3" cats and the current tip.
At the moment there's no mufflers.. wont pass registration but sure sounds nice.
Ive always been a fan of single systems on V8's - sounds much sweeter to me.
This was thrown together to get the car on the road for some testing.
The plan is to put a muffler on it (in place of the tip) for registration...I'm in Hong Kong and expecting a grilling from the regulatory bodies on emissions... so the ideas was stock manifolds etc for registration and switch to headers later with 3" cats and the current tip.
At the moment there's no mufflers.. wont pass registration but sure sounds nice.
Ive always been a fan of single systems on V8's - sounds much sweeter to me.
Ahh.. ok, this this is not a true 8-into-1 configuration. This would be 8-to-2-to-1. I was thinking that an 8-into-1 setup like that dune buggy is pretty radical... I wonder how that sounds...
Id say more the exhaust config.... the single outlet tends to smooth the sound out.... mine is still standard cast iron manifolds ... im expecting it to sound even better with headers and the same single outlet.
I have some better quality video, but it was shot by a guy for a TV promo and I cant edit it so I cant cut it down small enough to post anywhere... the original is too big to post
Ron McCall
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