Pump Gas Limitations

[Chris@Rvengeperformance]

That's pretty good actually.

I guess I can't wrap my head around evos that seem to get away with 30 on 93 and make 600AWHP out of a 2.0 liter on 93.

[Greg E]

I guess I can't wrap my head around evos that seem to get away with 30 on 93 and make 600AWHP out of a 2.0 liter on 93.

Much more efficient turbo and inner cooler setup.

[NickS VR4]

I am looking forward to the dyno testing that has been proposed on them. I'd certainly pick one up if it were worth some tangible gains.

If someone near ray wanted to borrow them while they are off my car the next month or two. I have no problem lending them for a dyno comparison. I have front and rear.

Sent from my Galaxy Nexus using Tapatalk 2

[Chris@Rvengeperformance]

Much more efficient turbo and inner cooler setup.

how is it we cannot replicate this, or at least get close? Our best intercooler setups are pretty beefy, is there some problem with them I do not know about? I know it is hard to not have a bunch of bends and other issues due to packaging restraints, but the cores themselves should be ok on the good setups.

[IPD]

is it just DR heads? wouldn't any +1 (stage 3) heads be sufficient for this?

also, are we shelving the idea of strokers for this discussion?

[Greg E]

I know it is hard to not have a bunch of bends and other issues due to packaging restraints

I believe this is part of the issue.

[Greg E]

is it just DR heads? wouldn't any +1 (stage 3) heads be sufficient for this?

also, are we shelving the idea of strokers for this discussion?

Just DR heads. Matt M spent YEARS buying NEW sets of heads and applying different combustion chamber designs in an attempt at eliminating the hot spots in the cylinders. I can't for the life of me find that thread but it dates back to the early 2000 era of 3si back when Matt shared a lot of technical info.

BTW my DR750 car will be running a stroker.

[vr4tune]

I'd put my money on cam lobe profile (lift, and duration) and valve timing and over lap. Combustion chamber shape and texture will also play a factor.

[Chris@Rvengeperformance]

is it just DR heads? wouldn't any +1 (stage 3) heads be sufficient for this?

also, are we shelving the idea of strokers for this discussion?

I would prefer to keep things as simple as possible and not dive into various displacement options. Bore and stroke size does have an effect, but I think any improvements we can come up with will benefit both stock and non stock displacements.

[Greg E]

I'd put my money on cam lobe profile (lift, and duration) and valve timing and over lap.

Completely agree. Everyone is so bent on sticking with the stock cams...

It's really more of a bang for the buck mentality with this group though. 4 cams are expensive to swap out and no one can "prove" results from just a cam swap alone.