Which turbo would be better for my setup?

I have a gsr block bored to 84 mm with b16 head.

Garrett T3/T4 with .48 ex and a/r .60 on comp - t04e compressor

or

Turbonetics T4 with .68 ex and not sure what is a/r on compressor but is T04B compressor

thanks

 

I'm going to go ahead and say neither. You aren't very descript in your details about the turbos, but with an 84mm GSR block, why are you picking from such random variations??

 

dont know much about turbos. what info do you need?

 

For starters, we need to know the complete setup with as much relevant detail as possible. Next, your goals and finally, what you plan to do with the car...whether its a track-only car, daily driver, auto cross, etc...What is your budget for a new turbo??

There are several factors that play into the decision...

 

would like to use one of these turbos. the car will be a weekend driver and track car. Just want to know which one would give me the best 1/4 mile times

thanks

 

Again, you're not being descriptive enough. What he's referring to are the actual wheel sizes of the turbos that you're trying to choose from as well as your SETUP (Exhaust manifold, cams, engine displacement, cylinder head, etc.)

Tell you what, I'll answer your question in a way that YOU might find vague.. Then I think you'll understand what you're missing:

T3/T4 will get you 9 second 1/4mile, all day

 

this is the stuff that i have

right now i have a drag turbo manifold, gsr cams, b16 head, victor x intake, str throttle body, 84 mm pistons in a gsr block, gsr crank

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by victoriasamantha &raquo;</TD></TR><TR><TD CLASS="quote">Garrett T3/T4 with .48 ex </TD></TR></TABLE>
Why would you want a .48 housing..?

 

what size ex. housing would i want?

 

victoriasamantha. As I've been PMing you, what we're trying to figure out here are several things. Turbocharging is not just slap on HP and go as much as you think. What happens is you wind up getting a turbo you may be stuck with, or that is incompatible with your equipment. Do you have a budget for this? Do you know what is available? 500hp is fine, but is this to the wheels? at the crank? What are you trying to do here?

I'm still getting a lot of vague answers like "best 1/4 mile time" and "exhaust housing doesn't matter", when these questions actually DO matter. We're trying to help, but its not just giving you ANYTHING when you need to get the RIGHT thing. Please be more specific as to what the purpose of the car is (STRICTLY DRAG RACE?) and a budget, and that will help us greatly. You've given us 84mm block (i assume sleeved). Is there anything else?

The more specific YOU are, the more helpful WE can be.

 

strictly drag race. I would like to use one of these turbos. I have no downpipe so i will have to get one made. My block has the darton mid kit bored to 84mm with manley rods, stock gsr crank and low compression arias pistons. I have a b16 head with crower valve springs & retainers and stainless steel valves. I have drag manifold for t3, precision 600 hp intercooler, rc 1000 cc injectors p28 with crome program. walbro 255 fuel pump. aem fuel rail and regulator. Which turbo would be better for my setup or I might be able to get a garrett T3/GT40. Thanks for all your help.

 

just as en example this is a good turbo description:

"Journal bearing Turbonetics t3/t04e 57trim, stage III turbine wheel with a .63 turbine housing."

now the turbo with the .48 is a bit too small on the turbine side despite it having the larger t04e compressor cover, if you can get a .63 turbine housing for it that would be much better but as it stands that thing is unusable in my opinion as power will fall off hard in your top end which is unacceptable for any honda.

the second turbo is the better option as it should be able to hold power further up in the rpm range, its smaller t04b compressor cover will limit the power though so once again as everyone is saying neither is a "good choice" but if i HAD to pick one it would be the the one with the .68 exhaust side and t04b compressor.

but if you can think outside your box for just a moment consider selling both and buying something much better suited for your application.

 

and what about a garrett T3/GT40?

thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by victoriasamantha &raquo;</TD></TR><TR><TD CLASS="quote">and what about a garrett T3/GT40?

thanks</TD></TR></TABLE>

how much power are you trying to make?

 

around 500 whp

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by victoriasamantha &raquo;</TD></TR><TR><TD CLASS="quote">around 500 whp</TD></TR></TABLE>

t3/gt40 is a bit large for that, how much money are you willing to spend on a decent turbo? Why do i get the idea you are just searching the market place for used stuff and asking our opinions on what you find...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blinx9900 &raquo;</TD></TR><TR><TD CLASS="quote">
Why do i get the idea you are just searching the market place for used stuff and asking our opinions on what you find...</TD></TR></TABLE>

Haha, you beat me to it!

 

If your sole purpose is drag racing, I suggest you choose something from the 60-1 family or higher (considering your budget, which we dont know as of yet), with an S compressor housing and stage 5 exhaust wheel. It will get you your 500 whp goal efficiently. Mac (The Shodan) can inform you of these alot better than I can, Im just throwing suggestions out there, but you have to answer his PM's.

 

GT3076R with .82 exhaust housing or whatever the BW equivalent is will get you to 500whp easily.. The reason this thread is so frustrating is because someone with the type of setup you're running should have enough technical knowledge to pick your own turbo.

 

like i said i have 2 turbos but i know someone selling the other one. so what your saying is with any of these turbos I cant reach my goal.

also with the garrett t3/t4 i ran a 13.0 1/4 mile on street tires at 112 mph with 15 psi, terrrible 60 ft times, now i have slicks and an lsd

also do i have to get head work done to reach my goal? could i get a different exhaust housing for the t3/t4 and make my goal?

i know a fair amount about hondas and engines but not much about turbos. just asking for some help before I waste my money.

thanks again



Modified by victoriasamantha at 10:12 PM 10/14/2008

 

Ok. NOW you've got good descriptions. The only problem with the T3/GT40 is the exhaust wheel, which in its standard form is a bit on the small side for the 500whp. It will take over 26psi to do that. If you get the option or have someone put in a larger exhaust wheel, it will be a bit more usable and will make 500whp. The GT3540s, Borg-Warner S362 (my favorite, since you're going to make a downpipe) can do the job. The S362 can make over 660whp when pushed, but can do 500whp without sweating. Ball-bearing cartridges are nice, but if you destroy it, you now have a paper weight. In drag racing, you can sometimes break, more than you race, so you want something that is rebuildable.

The question now is "what is your budget?"

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheShodan &raquo;</TD></TR><TR><TD CLASS="quote">Ok. NOW you've got good descriptions. The only problem with the T3/GT40 is the exhaust wheel, which in its standard form is a bit on the small side for the 500whp. </TD></TR></TABLE>

is that different than the blowzilla? Thats what i thought he meant by t3/gt40 which i thought was good for well over 500?

 

I was told it was the blowzilla

thanks again

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheShodan &raquo;</TD></TR><TR><TD CLASS="quote">The question now is "what is your budget?"
</TD></TR></TABLE>

 

I will have to sell the turbos i have before I can blow 1300 or so for a turbo unless someone knows where i can a good deal.