First a question...on flowing the rear SI and SII manifold was air flowed through the ports with the crosover blocked, or was the crosover and the ports fed air?
if this is the case then it may be a more cost effective mod to just get a rear header and utilize the factory front/crossover without the added cost of also getting a front header manufactured.
Originally Posted by jr's3800
Originally Posted by ssei1995
I have not flow tested the manifolds yet, but plan to do so. In addition, I will also be making some additional testing with some modified S1 exhaust manifolds
and as we speak, I am having some S1 flanges being made.
I know this is way off topic here sorta... But judging by the flow rate of the Series II manifolds would we be able to have a set of Tubular manifolds made for the series II engines for better flow? I'll guess that headers would be better in terms of flow, But could a set of Tubular Manifolds for the Series II be a good alternative if we could get anyone to make them?
on that topic i will be taking the SII flanges and modfying the SI manifolds (tubing and log) to use the larger id SI tubing with the SII port flanges on my SI/SII Hybrid...
of course the main reason i am doing this is because it'* getting turbocharged and with deleting the stock dump i will be changing the angle of a couple of the tubes where they dump into the log, and i want to see how that works before i go making the 304 stainless one'* in the future (as i may make a manifold type with a stepped "log" at that point vs headers (too much thermal loss with all the extra surface area)
nice work fella'*, nice to see this stuff is getting sorted out
PSYCHOTIC GEARHEADS paying homage to a legend, Hairy Hurst Olds
The first twin V6 94 Oldsmobile 442 462ci-4wd-2 (twin) engines
13.81 @ over 98 MPH! consistent 1.90s 60'! 4330 lbs race weight
something Sinister is coming to Chitown....