Unreal

Turbo size, housing size, AR, and pipe size all determine this, not single vs twin. You can have a single spool faster than twins, or the other way around.

I've done twin kits that do full boost at 1800rpm, and others that do full boost at 4500rpm on a stock ls3. Same with singles.

Enjoiskater

Ive decided to just do a simple nitrous setup instead and prolly daily drive the car more. The wastegates are cx racing ive been running them for years on other projects they work.

g23crawler

I have a brand new nitrous kit I'll trade you... have about 3k in it

Enjoiskater

Ill pm you.

Shikaitsu

That's a given but we're talking specifically in the context of these two particular kits as they are sold out if the box. The On3 tt kit will spool faster than CX Racing's single turbo kit as each turbo is considerably smaller than the one CX Racing offers with their kit. One advantage the CX Racing kit does offer is much more versatility with your choice of turbo whereas the On3 kit seems to require you to use their compressor cover and turbine housing which limits you to turbo's that fit within.

BoostedC3

Extremely interested in what you think of the On3 kit and fitment. I'm shocked more people haven't jumped on it at the price its at. Take a lot of pictures! On3's pictures are complete junk which might play into why no one buys it.

Sergio7

Haven't had a chance to post some pictures because i have been dealing with a nightmare-missfire issue, but definately hot-side & cold side piping look great. I also honestly liked the intercooler & radiator but wasn't to impressed with the plastic double fans. Will post LOTS of pictures soon 🤙�

Shikaitsu

I've also been waiting for some real world runs of the On3 kit because their website is in the Stone Ages hahaga

BoostedC3

Wow you already got it on?

What did you change to the fuel system? Is everything else stock on the car? Tuned on what psi?

Its the worst website ever. Looks like a intern made it. Its honestly one of the main reasons I haven't bought it yet. Pictures barely even show any part of the kit.


Did you need to modify anything to make it fit? Did you get the turbo clocking service?

LethalTT

My vote goes for UPP twin kit. I had the 6182R T3 kit for years and sold it for my new T4 67mm billet wheel setup. They also offer 72s and 76s now in a T4. 2 year warranty on turbos and lifetime on piping.

Sergio7

[quote=BoostedC3]Wow you already got it on?

What did you change to the fuel system? Is everything else stock on the car? Tuned on what psi?Its the worst website ever. Looks like a intern made it. Its honestly one of the main reasons I haven't bought it yet. Pictures barely even show any part of the kit.

I haven't yet installed it, found a broken valve spring & i am waiting fir the new BTR's .660 to get here also, got a great deal on a 50mm TiAL BOV that will get here today!
As far as clocking, i haven't checked if the turbo is already clocked from CX-Racing but i'll do the clocking myself since it looks pretty simple

BoostedC3

Yea not one of the options, plus if someone was able to just drop $10k on a turbo kit they wouldn't be looking at on3 or cxracing kits....

[QUOTE=Sergio7;1595185043]Get to it! I'm still waiting

Sergio7

New Tial Q-BOV got here today! Below are some comparisons of the TiAL vs he one that came in the CX-Racing kit. Also test fit it on the cold-side piping of the CX. Direct fitment

acker

So you bought the cx racing kit instead?

g23crawler

Yeah now I'm confused lol

BoostedC3

also confused

Sergio7

Yes, i bought the CX, instead of the on3. Opted for it since i will be doing fender exit. Also heard the on 3 is discontinued

g23crawler

Damn, guess ill just have to be the guinea pig for the on3 kit now!

jleews6

FWIW My friend just put a used on3 kit on his grand sport and he loves it. He has owned allot of fast cars and has built a ton of them and he likes the kit. He bought it used of this forum and said it went on real easy. His car ran 10.80s @125 before the kit and he said its crazy now. Turboffr is a member here and is the one that tuned it. I will tell him about this thread.

BoostedC3

Appreciate it! Would love to see pictures of it all in detail.