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Crossover inlet manifold??
Posted: Sat Jan 26, 2008 9:14 am
by kokkolanpoika
http://www.rover-v8.com/JEEngineering/w ... airbox.jpg
Nice looking inlet manifold tuning..
I just wonder how good this would be? Are they worth of money?
Posted: Sat Jan 26, 2008 10:36 am
by ChrisJC
As long as it is a crossover manifold (which I can't really see from the picture), then it ought to be better. Presumably they have some figures to back it up?
Chris.
Posted: Mon Jan 28, 2008 9:30 pm
by dnb
That reminds me of my manifold design.
It gained me 53 bhp (around 20%) on my TVR.
Posted: Tue Jan 29, 2008 12:30 pm
by 350matt
Does that still bolt to the std inlet manifold ?
Matt
Posted: Tue Jan 29, 2008 12:53 pm
by chodjinn
Hmm although I don't dispute that figure of 53bhp as it was dynoed (I believe), it still begs the question as to how the hell did that happen?!? Especially on a bloody TVR!!
Posted: Tue Jan 29, 2008 7:05 pm
by dnb
350matt wrote:Does that still bolt to the std inlet manifold ?
Yes, although I made sure mine was ported properly...
No comment on exactly where the 53 bhp came from, other than the original standard intake being dreadfully restrictive on an engine with 11:1 compression engine and a H404 cam!
Posted: Wed Jan 30, 2008 12:02 am
by 5000SE
dnb wrote:350matt wrote:Does that still bolt to the std inlet manifold ?
Yes, although I made sure mine was ported properly...
No comment on exactly where the 53 bhp came from, other than the original standard intake being dreadfully restrictive on an engine with 11:1 compression engine and a H404 cam!
Is the 53bhp quote an increase due purely to the intake swap, everything else being the same before and after???
Posted: Wed Jan 30, 2008 12:24 am
by dnb
Everything else was identical as far as I know.
This is apart from the ECU requiring a lot of changes to the volumetric efficiency table to cope with the extra airflow capability.
