Pretty sure my tn turbo is passing oil :/ I want to get a new one but also want to upgrade at the same time. My motors built I'm looking to run 12-14 lbs with a uprev tune I was looking at the garrett 60-1 with upgraded wheels but also I like the gt35r, I was also looking at that tn 62-1 and the t66 what are your opinions, what would the best turbo be?

 

None of the above. A Precision PTE 6262 CEA, 6266 CEA, or 6466 CEA would be superior to any of the turbos you mentioned.

 

More power on a TN kit?

:sigh:

FML

 

LOL

+1 to what Alberto said. I would upgrade more than just the turbo.

 

none of the PTE turbos are the same size you will have to redo the hot and cold side pipes.

Alot of work. I'd just get your TN rebuilt for 1/3 the price of a new turbo

 

Yeah, probably the best choice if he intends to keep the TN kit... but he's looking for more power on a built block.

 

So a precision turbo u mention with a 2.5 4 bolt exhaust and a 4 inch inlet won't bolt up? They put t66 turbos on these kits with no other mods except to the wasteggate ? I know a few turbos with the same t3 and 2.5 4 bolt and a 3 or 4 inch inlet should bolt up? What precision do u reccomend out of those u mentioned

 

Flange and inlet/outlet sizes aren't the problem. The overall length of the turbo from the compressor inlet to the turbine outlet will be different, hence requiring either shortening or lengthening of the down pipe and/or the compressor inlet pipe and adjustment or modification to the compressor outlet pipe.

Given the restrictive piping and limitations of the TN kit, anything larger than a PTE 6262 would be a waste IMO.

 

If you are looking at making some decent power, get the PTE 6266 T4 .81 a/r housing with an "E" compressor cover. This will require you to mod the down pipe, and up pipe (flange only). If you are doing that you might as well get a 3" down pipe built. This would give you the best power potential out of all the top mount kits on the market.

My customers ara making 600-650whp (DJ) with that turbo at about 18psi and 93 pump gas.

 

I've decided on the precision pte cea 6262 ported s housing with .63 ar and 4 bolt 2.5" outlet once I get it and modify the piping and install it get my injectors and uprev tune and we shall see the numbers! Thanks guys!

 

A T3 .63 A/R housing is too small. If you're going to stay T3 with that small TN down pipe, get the .82 A/R. Sorry, but the TN kit sucks for making anything beyond stock block power. You will need to significantly modify your TN kit or get a different single turbo kit to maximize the potential of an upgraded turbo and a built motor.

 

What ar is the 60-1 that comes with the tn kit?I was gonna get the .63 for faster spool. I'm only wanting to run 12 or so psi its my dd it what ways should I mod this kit for this turbo ? Does the piping just need to be bigger? I think ima go with a tial 40 or 44mm wastegate also

 

for a single turbo on a 3.5L, that 0.64 wont make the spool better, it will just choke the power.

The TN probably was around .64 but was never designed to make more than 400whp in its efficiency range.

 

So go with the .82 ar? What size wastegate would u reccomend with it 40 or 44mm I was gonna go with tial I wanna run around 12psi 14 tops

 

Wow, you have a built motor and you're running a TN kit? Sell the kit to some idiot out there and get yourself a Boosted Performance Kit. You'll never regret it.

or

If you're really set on keeping the TN kit... Listen to Sasha's advice below:

 

Why t4? And also why 3" in and 2" out over the s housing which is 4" in and 2.5" out? And why the 6266 and not the 6262?

 

The T4 housing will be much more efficient at making power at 12-14psi of boost than any T3 housing on the market. Even 1.6L Hondas trying to make a decent amount of power will run a T4 housing over the T3 because you need the flow. Everything that goes out of the compressor outlet also has to also go through the turbine….on top of that, you are adding fuel and the volume is multiplied through heat many times over.

It was only in the last couple of years that single turbo kits have started to make over 600whp on pump gas, and it is all due to the larger T4 housings. The previous kits using T3 housings needed race gas to get to 600whp, and those were strung out tunes that nobody will run on the street.

This is a 3.5L engine that revs to 7,000rpm…you need the flow.

The 3” inlet compressor will fit in to your current configuration, so you won’t need to purchase extra/different couplers.

As for the 6262 vs. 6266, there is plenty of reasons, and you can find countless back to back dyno runs with these turbos….so Google is your friend.

 

Alright. I appreciate it! With the 3" in and 2" out hurt the power? Compared to a 4" in and a 2.5out?

So u think a 6266 t4 .81 ar ehousing 3" in and 2" out? Would work fine what other mods besides the t4 flange and dopwnpipe should I do to the kit ima go with 600cc dw injectors possibly a tial wastegate and an uprev tune

 

The smaller compressor housing becomes a restriction after 32psi (according to Precision turbo techs), and yes the T4 .81 would be my choice for anything up to about 600whp (DJ). Anything more than that the .96 a/r is a must IMO.

Not sure what the intercooler size is on the TN kit...something to consider I guess. A larger (340lph) fuel pump and a complete fuel return system would also be on my list of things to upgrade (unless you already have)

 

i wouldnt worry one bit about the compressor housing limiting power. you have tiny hot side pipes. nothing in that TN kit is conducive to making more power than the turbo TN sold it with.