Zebb

Im thinking about buying a T04S but i dont know what A/R to choose. The engine is stock, not ported. The car (FD) is mainly used as a track car so im not looking for extreme hp. 300-350 rwp would be nice without too much lag. Is .70 a good choice? Im afraid that .84 is too big?

What do you guys think? Thanks.

classicauto

iTrader: (3)

.84 on a stock port FD engine will actually start to bleed a *little* boost off in the higher gears by redline.

for your goals a .84 or .86 is perfect

CrackHeadMel

iTrader: (2)

I have a 13b-re, slighly diff but close to the same. i ran a 1.0 for a year, boost came on hard around 4k, however under that you were in vacume alot

im running a .84 now, comes on much sooner and smoother

Id go with the .84

diabolical1

iTrader: (3)

i agree. go with the larger A/R on the turbine, but is there any particular reason you want the T04S? just curious.

Zebb

Thanks guys!

Hmmm... no. Do you have another suggestion?

CrackHeadMel

iTrader: (2)

i didnt think of it that way. with thoes power numbers in mind, why not go with a newer style of turbo of the GT series? my a GT35R? Isnt aspec's 500r a low 400hp turbo with great response in mind?

diabolical1

iTrader: (3)

yep. the GT35R was what i pretty much had in mind.

Zebb

Too much money. Im afraid of blowing my engine. I might consider a GT35R when/if im doing a rebuild, but not this year. Want to try single turbo first.

Is the T04S a bad choise for my needs?



But maybe i could rebuild the turbo if i blow the engine? Hmmmm...!

classicauto

iTrader: (3)

Hell no

Tried, tested, 400whp (max...ish anyway) turbo all day long. Affordable and easy to get.

Nothing wrong with the S at all. GT stuff is nice, will spool a little faster, require a little more plumbing and a little more cash to buy. But I never had a complaint with my S.......pulled like frieghttrain

I'm all about old technology though, I drive an FC and now run a T04-R

Zebb

Is there a big difference between the "R" and the "S"? The R spools a little slower, right?

diabolical1

iTrader: (3)

no. not bad, just old.

money issues? that's a reason not to go for it. however, your other two reasons are not. the GT35R is a single and it's not going to blow your motor any sooner than a mishap with the T04S will.

classicauto

iTrader: (3)

R is a larger compressor and different turbine wheel.......spool is actually *about* the same, not a large enough difference to notice at all.

He's perhaps looking at turbo replacement/rebuild cost. I can buy two T series turbo's for the cost of 1 GT35R and 1 GT35R CHRA......and thats if you don't damage a wheel....

Zebb

No no, i meant that if i blow the engine i will blow the turbo too. I dont want apex seals to destroy an expesive turbo.

I have the money to buy a GT35R, but i dont want to throw away money if i dont need to. I hope you get my point...

diabolical1

iTrader: (3)

dude, it sounds like you're apologizing for having reasons for your choice. no, please don't get me wrong. i was merely offering an opinion. your finances and fears are more valid than any reasons i (or anyone else) could offer as to why you should get something else.

CrackHeadMel

iTrader: (2)

understandable

if ur gona go with the t04s, id go with the .84 then

Zebb

Where is a good place to buy the turbo, fittings, lines etc? I know a few places but i dont know how good they are.

I dont understand. What do you mean with the "get something else" part? I own a rotary, im scared as hell

diabolical1

iTrader: (3)

i meant another turbo.

CrackHeadMel

iTrader: (2)

I got mine from here

http://cheapturbo.stores.yahoo.net/

there may be cheaper places, there may not, im thrilled with there service and customer support and WILL use them for my rebuild (if it ever needs it) and if i ever get to buy a larger turbo

FC3S.USD

iTrader: (2)

I think the T04S is an excellent turbo.

Yes it maxes out at 22 psi , but hey most people wont run C16 , race gas, or Auxilary injection.

If you want good response, and a good price. the TO4S HANDS down

a good setup is the to4S with a .84 P trim divided and get a divided manifold with a nice wastegate ( bigger is better, 42mm min - 50mm )

If you wanted to spend a little more the GT35 is great.

CrackHeadMel

iTrader: (2)

at 22psi the 60-1 is wayy out of efficiecny, if you want to run that, go with a T04R which is more suited to that, and basicly the same price (i can upgrade my t04s for 150 in parts iirc)

RETed

I'd recommend a T04E "60".
It is more effiecient at lower boost ranges, while the TS04 is better at higher boost levels.

Power potential is about the same with both in terms of max power.


-Ted

RacerXtreme7

iTrader: (2)

We're talking about the T04S here, not the TS04. Yes theres a differance. The T04S (also commonly known as the 60-1) is a GREAT turbo for stock to large street port 13b engines who run the street on pump gas. Basically limiting your boost to 15~18 psi you'll see 385~440 whp numbers dependant on supporting mods, ports, tune etc. I believe it to be the perfect street turbo and best bang for the buck turbo for those NOT looking to run race gas or aux injection of some type. The GT35R flows less at lower boost numbers, but quickly exceeds the 60-1 wheel once you breach 1 bar and beyound. Another GREAT turbo, but if you only plan on running pump and dont exceed 15 psi, both turbos will have simular response and make simular power, so why spend the extra money??

The T04E 60 trim has lower flow potentual and has higher effiency at HIGHER boost, when compaired the the T04S (60-1). In other words, its more suited for smaller engines running higher boost levels when making a direct comparison to the 60-1 wheel or the TS04 wheel. (rotaries on the street or running 1 bar and below tend to be extremely HIGH flowing low boost engines). The TS04 wheel actually flows less then the 60-1 also, but with better efficiency at higher pressure ratios. Ignore eveything I just said, basically the 60-1 / T04S is the better suited turbo period lol, also the other two will perform simularly.

And go with the .84 divided turbine and match it with a divided manifold.

~Mike...........

RETed

T04S isn't a standard Garrett part, and it was used by HKS initially.
Most people confuse the T04S with the TS04...so what was the OP asking about?
Turbonetics even relabelled the TS04 as a T-58 now.


-Ted

RacerXtreme7

iTrader: (2)

Wrong again, T04S is a GARRETT compressor cover designation. Its not actually a turbo name at all as is what pretty much ALL these names given to turbos of nowadays (T04R, T04Z etc none are Garrett names, but names given to them by the public and retail savvy vendors/re-sale-er’s). The T04S comp cover is used on NUMEROUS turbo chargers, the smallest from GARRETT being the 60-1 compressor wheel. Then onto the T-Series of turbo chargers the smallest being the TS04 (T-58), then T61, T64 etc. And now, the GT series utilize the T04S compressor cover as well starting with the GT30 then up to the GT40 (some of the GT40’s, most have a larger ported shroud covers) and GT35, GT35R etc etc. The T04S compressor cover can be used on smaller older compressors as well like the T04E wheels to aid a little flow compared to the T04E comp cover (T04S cover has a 4" inlet and 2.5" discharge with a .7 A/R were the T04E comes with a 2.75" to 3" inlet and 2" discharge with a .6 A/R) Turbo XS did this with their “T04E” turbo kit for the FD (T04S cover with a T04E wheel stuffed in it). It’s just a well-known factoid in rotary land of turbo's when someone says "T04S" they are talking about the 60-1 wheel and T04S cover on it. HKS had a T04S kit which was a 60-1 and Turbo XS had a T04S kit which had the 60-1 wheel as well, both utilizing the T04S housing. Probly were the generic term "T04S" started. The one thing about the TS04 and T04S that seems to constantly confused is that you’re the only one bringing the TS04 up and confusing them lol. BTW, any turbo retailer / resale-er can name / rebadge a turbo any thing / catchy buzz wordery name they want. Phoenix / cheapturbos.com started the “Blowzillas” and copied HKS’s T04R and T04Z names and sold straight up Garrett parts, no not the actual proprietary HKS parts made by GARRETT for HKS. I see more people confusing the 60-1 with T61/T-61 more then anything and the only time I see the obsolete TS04 mentioned is from you even after being corrected time and time again.

Stick to wheel / tire offsets and sizes, your great at that

~Mike.................

RETed

That just made everything else confusing...

So you say 60-1 = T04S, when T04S is just meant to describe a 4" inlet / 0.70 A/R compressor cover?
Then that already is wrong...so the "well-known factoid in rotary land" is wrong to begin with?
To me 60-1 describes a compressor wheel...
So you see the confusion?

And I thought the HKS T04S is a totally different wheel than a Garrett 60-1...


-Ted