Thread: 6262 dyno Results and freeway vid p30

Well now I am interested to see how the 20V cams do in comparison. The cams have a completely different personality than the SR16 cams do. When the SR16 cams hit, even at 3800rpm, you would feel the pull and the boost would come up quick. The 20V cams don't exhibit the same response to the VVL kicking, especially on the exhaust side. The cams sound insane when they hit, but it feels a lot better engaging the INTAKE cam first, then bringing on the exhaust cam at 5500rpm or so. Perhaps this is attributed to the LSA these cams have, or perhaps it is the fact the low lobes are very large in comparison.

When the big turbo goes on, I will do a pull on the dyno from 2k rpm and see what happens to the power curve with the 20V cams on low lobes so we can see that. There is little doubt that the 20V cams are going to perform better at high rpm, seeing the data I already have. And starting the pull sooner will def show an increase of bottom-end power.

These 20V cams may not have that huge mid-range pull that the 1.6 cams had, but if I kick the cams at 5500-6k I can see them holding way past 8000rpm. I am anxious to see the powerband after 8k with this computer.

Just a quick question, how many guys have to advance their dizzy timing after having the block and head resurfaced? Just trying to get an idea of what you guys are seeing. It's looking like about 3* I'm having to advance to get to 15*.

not sure on how much, but from what i read its pretty common..

its not something i'd dwell on really, as long as the mechanical timing is right an your setting the timing with a timing light then all should be good..

i Think you can dial it out with cam gears as well.. Maybe you would have some luck playin with cam degrees.. from what i've read i dont think you've tried that???

I have adjustable gears. I think I am goin to try advancing the intake by 2.5 to take out the loss from the shaved head. And thinking about doing the exhaust by 5*. This should put the intake back at 0 and the exhaust at +2.5*

i would try multiple settings on the dyno to see what works best

Well the guy ordering the turbo fell through. So I am resorting to ebay unless anyone else can get a 6262 quick.

real street performance is the best on ebay

Well i took your advice and just ordered it. So hopefully I get it soon, the dyno day is 2 weeks away. I don't think it is looking really good for the dyno day. but that's ok. I'll go anyway just to go, and put the turbo on afterwards once I get it. Seems crazy to have a 2-3 week wait to get one.

I got the 6262 bb with the SP housing and .82 vband out exhaust housing.

I was REALLY tempted to get the 6266, but I decided against it only because I figure the redesigned 6262 turbine wheel already flows like the old 6265 supposedly.

Hope the turbo spools well. the 6262 isn't really any bigger than some of the SC61 turbos out there.

SC6176 has the huge turbine wheel from the 6265 basically, with a GT35r compressor. And Andy had really good results on that turbo with really minimal lag, with a journal bearing turbo. On the DET I figured he was making 450whp on 19-20psi.

So the turbine on this turbo isn't quite so big, but hopefully the whole turbo delivers what I want.

you can still try switchin cam degrees.. make the best of what ya got

Might as well do it and see what happens lol. GOD, I cannot wait to get this 30r off. I am ready for more power!