I'm definitely not bagging on the T04S setups -- they are good for many of the same reasons I like the R85 (rebuildable, good size turbo). But I just wanted to dispute the assertion that the R85 looks peaky. And I wanted to share my thought that low RPM spool is not as big a deal as it at first seems when going single. Evidence: How many people with singles want a smaller turbo? Most want a larger turbo or are at least satisfied with what they have.



-Max

I can't edit posts, so I look like a rapid-reply fool. https://www.nopistons.com/forums/pub...IR#>/smile.png



By "but it seems like that would perk it up down low and make it drop off a bit faster at the top end" I meant that the *stock* manifold should perk things up down low and drop off faster at the top end compared to the posted dyno graph.



-Max

That may be the smartest thing I have ever heard someone say. Everyone always talks about spool time, lag and all that blah blah blah.. But you hardly (if ever) hear a single guy say he misses the low end or wants a smaller, faster spooling turbo.



I've always driven cars around 3-4K anyway... I don't really know what lag is like.. Maybe it's just my driving style.. But I cruize a gear lower than everyone else LOL.. Eliminates downshifting? https://www.nopistons.com/forums/pub...DIR#>/wink.png



Don't take that too literally... I don't cruize at 80 in 4th or anything... But around town I've always stayed in the powerband.





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With all that above said... We've been testing a AF22R (hybrid to4) at my shop. Of course, the club.com members have ripped us to shreads for not having "dyno numbers" but I can give hard facts like this:



T4 based turbo. 60mm compressor wheel. Spools similar to twins and is good for 450-500 hp (race gas and tuning of course). I can't "prove" that it's good for that power cause I haven't got it dyno'd yet HOWEVER I'll say this. Anyone in the midwest bring your single turbo car to my shop and race the stock ported AF22R equipped FD of Mikes. It'll embarrass anything from a dig and hang with the big boys from a roll. A 10psi this sonnofabitch is squirly all through 3rd with 275's on the back.



We are installing a second of this turbo on another car in the next week. I HOPE one of these guys will get us some good video and hit the dyno down the street.

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Sorry about that! I just think we're on to a really good track turbo that's capable if nice numbers... I REALLY hope to share more soon. If I can get my car to stop being a little biotch, I'll bolt one to mine too.. https://www.nopistons.com/forums/pub...#>/biggrin.png https://www.nopistons.com/forums/pub...#>/biggrin.png

Its not on your list and I dont know what your goals are but I can tell you that if you need something with decent low end a 62-1 with a P trim and 1.0 divided is a GREAT turbo. I has a real nice wide powerband, pulls like a mother at 3500, and is good for 450ish rw. In addition they are cheap as dirt and any turbo shop on the planet can rebuild it when you run a apex seal thru it lol



Otherwise if you want some big daddy power you on the right track



Later,

STEPHEN

r85

TO4R a/r .96 https://www.nopistons.com/forums/pub...IR#>/bigok.gif

I was thinking the same thing. Thats what I ran after my apexi setup, and the 62-1 was badass for the street. Loads of power, great low end, and not expensive either like some of these kits.

I know this is a bit off topic, but how does the Gt35/40r compare against these setups.

I hear a lot of pros / cons about BB(Ball Bearing) setups like that, and how a rotary is pushing more fiercely than any piston driven engine, and therefore can spool a turbo faster... so going up against, say a V6 with the same turbo shouldn't you be able to be in the sweet spot faster !??



I agree that bigger = better, regardless of lag, but there comes a point, when the rear axle, and frankly the tires give up, and break/or spin... doesn't there come a point when physics takes over, and you just can't make more power since you can't put it to the ground !?

Yep, the 62-1 did have a killer powerband. https://www.nopistons.com/forums/pub...1047683329.gif

How would you know Van, you never made any power with it! https://www.nopistons.com/forums/pub...#>/biggrin.png https://www.nopistons.com/forums/pub...IR#>/bigok.gif