Thread: Ported N1 intake manifold, *pics* and flow data

damn i was considering it but didnt end up doing it, but i think now i defiantly should have gone n1 lower intake manifold with custom chamber for my turbo build, i would have been able to run 8 injectors as well damn it. Hmmm i suppose it might not be too late to change my mind

Great work there snickers! And damn good flow figures! But its not just the flow figures in this equation that adds up to hp, well i havent seen an n1 manifold in person, however if its anything like the standard ve one with the stupid amount of reverse tapper, it looks like you have converted that into a decent normal tapper. In turn giving you a huge boost in air speed as the air enters the port then valves. Although it wont happen, would love to see this manifold dynoed compared to a stock ve unit. I would imagine substantial gains

i must ask what is the runner length of the standard n1 manifold? And how much wider are the runners stock compared the your typical ve manifold.

The n1 runners look like a better start even for a custom manifold as the round entrance between runners and plenum makes things like tapered velocity stacks and soo forth much easier

****, for that price, if thats the whole thing, i'd just have them build em... Usually GOOD materials will add up to that very fast, Flange, injector bungs, tubing, velocity stacks, plenum, T/B flange, IACV flange and so on....



I think the runners are about 8" total length on the manifold. It is not worth it to me to just do mild porting.

To give you an idea of how well the taper is designed and shaped on this manifold, I did not even port out the end of the manifold where it meets the head. It has just BARELY been cleaned up from where it was when i got it. I have oval tubing the same size as the VE intake port, actually about 1mm larger in height and length. A 6" piece of that on the flow bench with a nice clay "Velocity stack" built around it only flows about 360cfm. Here i'm getting about 30cfm more. mostly because of the taper, the air speed is high enough that it can move through the end of the port faster than the straight piece.

those welds are nice.. id shine it up. just the welds...

very nice work then

eh, i've done better.... I couldnt keep the manifold hot enough to get a nice solid weld on it. Some of that material is 1/2" think so it can make a pain to weld.

but when in engine bay the motor looks like it had brain surgery from the top. i like it .. igive it personality.

the nicer welds would have had you there hour 1/2 maybe.

Hahahah


So I apologize for this if it is redundant by now. But this particular porting job, after reading what you folks have said, would this prove to make higher hp on an n/a application?
Did you see an increase or maintain air velocity? Just curious as Dre mentioned he would only recommend his for F/I, this is a little over my head work with me....Thanks.

Dudeman

I plan on hitting those welds with red paint and then using a sharpie to draw stiches. The "Frankenstein" intake to go with my "Super Freak" header

I am certainly hoping so. Charles has given me some estimates that I will keep private until the dyno gets a chance to speak.

Very good. I am very interested. Keep us posted please sir!!!

Dudeman

this was done to increase air flow and velocity. this manifold flows more than 100cfm over stock and the ports where it matches the head have not been modified. all that was done there was a slight clean up. this was done all for an N/A application.