Thread: 6262 dyno Results and freeway vid p30

I got mine through mazworx and Miko put them on the head I bought from him. I think I got the 100lb springs. 130 is quite a bit more, and I'm not really sure what kind of downside there is with a stiff spring.

Hopefully the 20V can go to 9k safe with these springs. I would think they would be.

too stiff springs can also hurt power. Its engine power that turns the chain that turns the cams. The springs are a resistance on this process. The stiffer the springs the more resistance the more power needed to over come this.

Its just one reason a 4v head will make more power than an equal flowing 2v head, because much softer springs can be used meaning more power at the crank and less lost in the drivetrain.

Stiffer is not better. You want the softest possible spring that will do the job adequately. ie seal under desired boost an not float the valves at desired rpm

It's funny all my EVO and DSM friends tell me the 6262 is too much turbo and I will hate the lag. "GT3076r will make 500whp easy" they say. But these are all guys who love boost. 35psi is boost to them.

I will agree that the 6262 is a large turbo, but I am really excited to see what results the car has. No change to the tune at all. Just bolt on and go. Perhaps the 6262 is sized appropriately for the VE engine. I think it will perform very well, even with the JWT ecu.

I feel like the GT3076r would have gotten me where I want. But only with a .82 open housing. The 1.06 divided setup i feel is really restrictive, other testing has agreed with this as well. And although the TS setup was responsive, I feel the spool may have been artificially improved via the backpressure in the housing and the "nozzle" design of the housing. Not necessarily the improvement in turbine efficiency. But hey, that's why I test these things. So you guys can learn from my experiences.

Is the twinscroll worth it? Perhaps for a road-race engine, but I wouldn't go 3076 with it. Only 3071r. Anything more than that, go T4 with a GT35 or better yet a more balanced turbo. the twinscroll would probably benefit a DET engine better as well. Where exhaust backpressure doesn't hurt the power delivery, and the DET makes better use of the mid-range power.

I am going back to single scroll. In the future I may go back to a twinscroll T4. Or I may even try the VBAND inlet with a VBAND out as well. A small change to the manifold and collector design and it would yeild a pretty bad ass Vband setup. But I believe it is time to focus on the whole efficiency of the setup. Simplify things as much as possible. I've had a really responsive setup, but now I can't wait to see what improvements can be made to the setup in the future.

Perhaps I will try another a/a setup, but I have yet to finish my testing with the a/w intercooler. The a/a will be simpler, but it depends on how well the A/W setup will work with lower boost levels and a more efficient compressor. Perhaps heat soak can be avoided by some minor tweaks in the system.

I've got gt3076r 0.63 a/r with the 3 inch gt. I haven't installed it yet

do you think the 0.63 is too small ? do I need 0.82 ?

A good friend of mine owns a shop in San Antonio called JMS Racing and the main cars they work on are Evo's. He's the reason i went with the 6262. He told me that he was tuning cars and making crazy power with it with no lag at all, so I gave it a try. Those guys do run big boost though. 35 psi is normal for them but the turbo still want to keep going. I did go with the V-band in and out because i was told that the V-band back housing flows better. If i was to take this turbo to 35psi i'm sure i will see well over 700hp easy but it doesn't make since in this car. The tranny can barely handle 641hp. If you can switch to V-band without to much hassle i would say go for it but you can go T3 for now and change the housing at a later date.

My buddy in is SOHC D16 civic made 390whp on 11psi, and 600+ on 30psi.

Kevwal, how would you describe the setup? Laggy? When is boost onset. Interested in hearing more about your setup!

It starts building boost from around 3000rpm. I have my cams switching at 4800rpm and as soon as they switch i'm at full boost. No matter where i have my boost set to it's there. I did Nissanboy561's car with a T3 flanged 6262 and it spools good also. I have the SR16ve cams set at 0-0, stock intake manifold and throttle body, stock head with supertech 130lb springs and retainers, 9:0:1 compression and a exhaust manifold i made myself with the V-band flange. He has a similar setup but just with SR20ve cams, 8:5:1 compression and a different exhaust manifold. Both running on E-85.

You need to get back to the track Kev and put some slicks on there and hit your 10 and get it over with, lol. Your trap speed will easiliy get you there and maybe give it a little more boost too just for insurance.

I plan on going to 25psi once i get into 3rd. So far all runs have been on 19psi only. I know Coheed will like that turbo.

My buddies Turbonetics 62-1 (6262) T4 and .86 a/r does almost the same spool up kevwal mention his car does but on 5000 cam switch , My buddies car is 4wd and standard cams , gtir quad throttle mani.