anybody have any opinions on this turbo, and what type of wheel horse power this thing can put down? Where would this thing roughly start to spool up at and when might it reach full boost (30 or so psi)? I know that not that many hondas have used this beast yet, but I am very interested in it. I understand it could be very laggy since the garrett catalog states that it is for 4 liter + motors. I understand it is extremely expensive but money is not an object for this project.

My setup thus far
b18a block with darton sleeves bored to 85mm (done)
eagle b18a crankshaft (purchased)
oliver billet rods (purchased)
9:1 comp cp pistons with swain tech coatings (purchased)
Aebs head and main studs (comming soon)
hybrid garage girdle (purchased off a friend brand new)
b16a head with portflow work (comming soon)
ef-1 turbo cams, springs and retainers (purchasing soon)


I dont have any expected power numbers or time expectations
just want to build it and see what it would do.

Thanks a lot guys I really appriciate it

 

i wish i could say money is no object. gl with the setup. nice items too.

ps whats the displacement with the 85mm bore? 2.0L?

 

One thing you may want to seriously consider is installing direct port nitrous. It will greatly help spooling that turbo.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lazerus &raquo;</TD></TR><TR><TD CLASS="quote">One thing you may want to seriously consider is installing direct port nitrous. It will greatly help spooling that turbo.</TD></TR></TABLE>

I was considering the use of nitrous too, I might do a setup where I have a pressure switch that senses how much psi I was at and have it shut down automatically once a certain level of boost was reached.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by psileepR &raquo;</TD></TR><TR><TD CLASS="quote">i wish i could say money is no object. gl with the setup. nice items too.

ps whats the displacement with the 85mm bore? 2.0L?</TD></TR></TABLE>


Thanks Psileeper. And yes an 85 mm bore is a 2.0l, its should make just a little more hp than an 84 mm, but every little bit helps I always say.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by havoc productions &raquo;</TD></TR><TR><TD CLASS="quote">anybody have any opinions on this turbo, and what type of wheel horse power this thing can put down? Where would this thing roughly start to spool up at and when might it reach full boost (30 or so psi)? I know that not that many hondas have used this beast yet, but I am very interested in it. I understand it could be very laggy since the garrett catalog states that it is for 4 liter + motors. I understand it is extremely expensive but money is not an object for this project.

My setup thus far
b18a block with darton sleeves bored to 85mm (done)
eagle b18a crankshaft (purchased)
oliver billet rods (purchased)
9:1 comp cp pistons with swain tech coatings (purchased)
Aebs head and main studs (comming soon)
hybrid garage girdle (purchased off a friend brand new)
b16a head with portflow work (comming soon)
ef-1 turbo cams, springs and retainers (purchasing soon)


I dont have any expected power numbers or time expectations
just want to build it and see what it would do.

Thanks a lot guys I really appriciate it
</TD></TR></TABLE>

That gt42 wheel flows alot of air. It should be good for 600whp no problem. I am assuming this a true ball bearing turbo and that should help the spool time.

 

is this a street car? If so i can build you an unbelievable turbo using GT wheels and depending on how much WHP you are looking to make, a variety of turbine sizes and configurations.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by FFgeoff &raquo;</TD></TR><TR><TD CLASS="quote">is this a street car? If so i can build you an unbelievable turbo using GT wheels and depending on how much WHP you are looking to make, a variety of turbine sizes and configurations.

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

It will be a street legal, and will be driven on the street but not on a daily basis just more like on the weekends and maybe a day or two during the week, will see a lot of track use though so a little lag is not much of an issue but would be nice to have as little as possible. I am not shooting for any specific whp number but it would be a shame to put all this money in a car and not make somewhere between 650-700 whp . However like I said before I dont want to set any specific goals, just build it and see what happens.

What would you be suggest and be able to build for a turbo Geoff?

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

That gt42 wheel flows alot of air. It should be good for 600whp no problem. I am assuming this a true ball bearing turbo and that should help the spool time. </TD></TR></TABLE>

Yes Tygsr I believe you are right it is a true ball bearing turbo. However I cant seem to find much info on this turbo, but I can find a decent amount on the rest of the gt line up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by havoc productions &raquo;</TD></TR><TR><TD CLASS="quote">anybody have any opinions on this turbo, and what type of wheel horse power this thing can put down? Where would this thing roughly start to spool up at and when might it reach full boost (30 or so psi)? I know that not that many hondas have used this beast yet, but I am very interested in it. I understand it could be very laggy since the garrett catalog states that it is for 4 liter + motors. I understand it is extremely expensive but money is not an object for this project.

My setup thus far
b18a block with darton sleeves bored to 85mm (done)
eagle b18a crankshaft (purchased)
oliver billet rods (purchased)
9:1 comp cp pistons with swain tech coatings (purchased)
Aebs head and main studs (comming soon)
hybrid garage girdle (purchased off a friend brand new)
b16a head with portflow work (comming soon)
ef-1 turbo cams, springs and retainers (purchasing soon)


I dont have any expected power numbers or time expectations
just want to build it and see what it would do.

Thanks a lot guys I really appriciate it
</TD></TR></TABLE>

When sizing a turbo, you MUST have a target horsepower in mind in order to size the turbo (and other things such as fuel injectors and headwork, etc.). If you are only interested in 600 hp, the the GT40 with the 88mm compressor would be a better choice. Be advised that with such a large turbo on such a small engine, you will have MAJOR lag issues that will make the engine a real chore on the street. If this is for a drag racer that leaves the line at 6000rpm, then you will be ok. If this is a street engine, remember that 250-300 HP is about all that is practical for a fwd car, anything more is just wheelspin and smoke. In this case, an older T3/T4 (or if you can wait a few months a GT30R ball bearing turbo will be launched) will be a much better choice. Hope this helps.

Brian

 

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

When sizing a turbo, you MUST have a target horsepower in mind in order to size the turbo (and other things such as fuel injectors and headwork, etc.). If you are only interested in 600 hp, the the GT40 with the 88mm compressor would be a better choice. Be advised that with such a large turbo on such a small engine, you will have MAJOR lag issues that will make the engine a real chore on the street. If this is for a drag racer that leaves the line at 6000rpm, then you will be ok. If this is a street engine, remember that 250-300 HP is about all that is practical for a fwd car, anything more is just wheelspin and smoke. In this case, an older T3/T4 (or if you can wait a few months a GT30R ball bearing turbo will be launched) will be a much better choice. Hope this helps.

Brian</TD></TR></TABLE>

Like I said in the my previous posts, this is not a daily driver , and will probably see more track time then street time, so lag is not that major of a problem and I am considering nitrous use for spool up. I understand and know that 300-350 hp is all that is practical on the street, and that is why it is not going to be driven daily. As far as target horse power, please read the post right above yours. It hints at the power I would like to make, but in my years of building cars I never have expectaions of power or times, because there are many variables involved that could affect the out come, and even though you still try to control as many of them as you can, no two cars or engines are ever created equal not even from the factory. I appriciate your response.

 

the gt42 wheel is not just a step above the gt40. it is like a two story jump above it. this thing is meant for 900-1100whp applications. it is very overkill for a goal like urs. this is the new bad *** turbo for the supra guys. basically when a t88h like titan runs is too small, this is what you step up too. hell, this thing is bigger then the turbo the jotech civic is running. Sound Performance enginerring has already pushed 1100rwhp out of it on a supra. this thing is a monster and i would not reccomend it for ur application. i would advise you to check out the Precision PT67. it is slightly larger then a t66 and has already been proven to make 700whp on supras and 600+ on a honda. it is going to be ur best bet for accomplishing ur hp goals while still maintaining reasonable spool up and mid range torque.

 

Yeah, the pt67 is what I'm going to be using, and it looks like we have very similar power goals. With the GTQ wheel, Rod Short thinks that it might fully spool a little bit sooner than 6500rpm. Thermal coatings, exhaust tubing, tuning, etc. will affect that +/- though. But you're still looking at a ballpark figure that's pretty high, as far as spool up RPM goes. That leads me to my next question: Is the pt67 available with ball bearings? Whatever your decision might be, be sure that you get a turbo that has Updog. It'll help out a lot

 

Try and get the car running without Nitrous first then you can use it as a power adder. Problem with those direct port nitrous is the minimum hp may be too much and cause excessive wheel spin even if it is only used a s a spooler. The single fogger I wouldnt use due to pooling and uneven distribution. Remember with Nos and high Hp is a dangerous game.

 

Thanks guys I really appriciate all your responses. I have been talking to Geoff about a custom turbo he can make me and still have resonable spool time. I was also considering the pt67 and the ITS gt66 before and like them both alot, but didnt know much about the gt42, I didnt know it was that huge of a turbo.

 

we have the t67 compressor wheels.



we recently got some of the prototype gt P series turbine wheels. They are not yet available for sale, only testing, but will be released soon.


Modified by FFgeoff at 6:11 PM 8/24/2003

 

Send a pm to Arturbo. He should be able to hook you up with a PT67 for a very reasonable price.

 

Thanks guys, I have decided to go and have Geoff build me a turbo with a Gt 67 mm compressor wheel, and the new gt p trim turbine when it comes out.

 

What's the difference between the P, the GT-P, and GT-Q trim wheels?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CheezeFrog &raquo;</TD></TR><TR><TD CLASS="quote">What's the difference between the P, the GT-P, and GT-Q trim wheels?</TD></TR></TABLE>

Thats a good question, Geoff would know.