dburt86

iTrader: (2)

I'm looking at a set of eBay 35rs for a couple different reasons, but the ones I'm looking at have specs much bigger then normal 35s, but they have the housing size I want, they are cheap, and they are vband.

My setup
Lq4
Studs with ls9 gaskets
228/228 cam (speed INC tu1.5)
T56 car

Looking for 750-850 on pump and meth

Let me know what you guys think.

gtfoxy

I was considering those for my build.

They should work well & spool nicely being t3 .82's. They might limit your RPM range depending how hard you want to push it.

dburt86

iTrader: (2)

I'm just looking for a street friendly power range. Looking at my all motor dyno graph, I'm tanking at like 6800 anyways.

I fee like its a fine line when running twin t3's. Denham choked a 6.0 at 500whp but then other guys make 1300 on similar setups.

coltboostin

If it does not measure to a GT35, its not a GT35(copy). The real benifit of the Garrett GT series turbos was the aero work with the turbines anyways.

I would advise you find a true Garrett GT copy if our trying to go the cheap route. Just buy froma Vendor like On3 or VS so you know what your getting.

dburt86

iTrader: (2)

I agree with that.

I have my eye on some cx racing true gt35 sized turbos (61/62), t4 with a .68 vband housing

I originally wanted a .82 t3 vband exhaust but besides the ones above, they are hard to find. I figure the .68 t4 would be a good compromise.

At least with a company as big as cx, il have a fiting chance for a warranty when they blow LOL!!

gtfoxy

It's pretty lame to call anything not an actual Garret GT series a GT, but as Shakespeare said: "What's in a name...?"

But real GT4508's are 80mm compressors. CX has one that size they call a GT45. They also list a 76mm GT45. Whether or not they have inconel turbine wheels like the Garret's I do not know.

dburt86

iTrader: (2)

unfortaneley thats the world we live in now a days.

When you can type "tial style wastegate" and get a product almost identical in every single way as the original but for 1/6th the price, its bad.

That being said, im a part of the problem, lol.

gtfoxy

I was more talking about those hung up on stupid nomenclature. (Montegue, etc) They are what they are & it will be what it will be. Look at the specs & tune it as it wants.

I would like to see those 66mm mated with a T4 .68 or .81 with your combo.

dburt86

iTrader: (2)

Do you think they will be lazy? Those are alot bigger then a true 61/62 gt35

dburt86

iTrader: (2)

these are the new ones im looking at
http://www.ebay.com/itm/270939306819?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

gtfoxy

No, they should spool quickly. The first ones appear to have p-trim wheels in T3 housings. The second ones are smaller yet in .68 T-4 housings.

They are 66mm compressors in a t3/t4 configuration. A bit mis-matched compressor/turbine side but they just may perform well for you. Only one way to find out.

dburt86

iTrader: (2)

If you had to pick a set, which ones would yu buy?

The cx racing seems to have the specs that everyone has good luck with, and a bigger company that people have had good luck with.

I'm leaning towards the 2nd set

gtfoxy

A pair of 67's on a 6.0 will get you 800WHP. If you want a tad more later, & want cheap, I would probably end up going with the On3 70mm. Just over $700 for the pair with some add on parts with more power to be had later.... Those should be p-trims & if you think you want faster spool over absolute more top end, go with .68's. If you want them a little softer then go .81's.

The on3 70's was actually what I was probably going to go with in my 6spd GTO. But now I'm doing a single. It's a huge 69mm that isn't going to be happy past 12psi but it was free & I will save up & go to a 80mm later like an S480.

Forcefed86

iTrader: (4)

Why fart around with Gt35's? Just grab the 76/65 $300 units on ebay (price jut went up they use to be $280) They are proven to make great power on a 6.0 anyway. No guess work.

Guys are making 1200++WHP on twin 62mm Precision units on 6.0’s. Not happening with china stuff. China clones usually use old outdated wheel castings. So they are much less efficient than the new wheels. Which IMO means go big on the turbo wheels in general with cheap china stuff.

76/65 (they have a .68 and a .81 housing options for the same price.)

http://www.ebay.com/itm/251453904780?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
Personally I try a pair of these 72/68’s with a big nasty cam on a 6.0. The larger wheels and housings would almost ensure 1:1 back pressure ratios. So you could run a big mean sounding cam.

http://www.ebay.com/itm/161771025909?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

TrendSetter

i have two of the t4 gt35s from cxracing on a 4.8 in a silverado. they spool fine, ive been daily driving the truck for a couple months now with no turbo related issues.
a guy with a gto put over 800 at the tire with a pair of these turbos on a 5.3. i probably would want a bigger exhaust side with more inches than a 5.3 though.

gtfoxy

That last one has a .96 A/R...

If he wants fast spool dual 76's aren't the way to go, IMHO. A typical 76 has a very narrow band to the choke line that fast response could have you operating outside of. I've seen it happen.

Twin 61's, 66's, 67's 70's all more than enough & will work just fine for what he wants now & into the future.

dburt86

iTrader: (2)

What exhaust housing size are urs?

I'm pretty torn on which way to go.

dburt86

iTrader: (2)

I figure no matter what the design of the wheel, I could get 750 on twin 61's, and then I have the opportunity to drop in a dimensionally identical 35r in the future when the funds become available.

Or I buy the bigger ones in my orginal post, and hope they spool well with a manual.

gtfoxy

Looking at some maps, a 66 or 67 would work real well if looking at 45-50lb/min at 2-2-2.2:1 pressure ratio.

Try to start making positive manifold pressure around 12.5-15lb/min (25-30 total engine flow) & it will rise in a good efficiency range & sweep into the 74-75% island at the top of the rev range.

TrendSetter

mine are .68 t4. they are super small and light, im very happy with them.
im not sure how well they would do on a bigger motor, i know denmah choked his but he had a 'big' cam on it. i was never able to find the specs but it was one that martin designed so 'oversized' is probably an under statement.
with a milder cam they may work great, and even if they dont, theyre still t4 so you have nearly unlimited options for replacements.