After being on here i decided to go with a super .60, But just wondering what would hapend if i put somthing like a 48 42ar on a cav? quick response but low top, or is it just to small period and couldnt handle the spool?. Just asking.
Emry
96 Camaro A4 383 12.5:1, E85, Full suspension, Nitrous outlet plate kit, hooker headers and catback, 3800 circle D converter.
2002 Silverado LQ4 6.0 CAI, Long tube headers, 4" exhaust
1996 s10- 97 ECU and wiring, soon to be boosted daily driver.
no top end, and you'd heat soak it rather quickly
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Emry wrote:After being on here i decided to go with a super .60, But just wondering what would hapend if i put somthing like a 48 42ar on a cav? quick response but low top, or is it just to small period and couldnt handle the spool?. Just asking.
Emry
A .48 turbine housing when compared to something bigger like a .63 will do just as you said, give a quicker response (less lag) but it will also limit top end power. A .48 is not too small to use with a T3 Super 60 by any means, there are plenty of guys on here using them with great results. But to pick the best size turbine for your needs you need to ask yourself what your needs are. If you are primarily going to use the car for drag racing and peak hp is your goal then the bigger turbine like a .63 would probably be the better choice for you. If you plan to use the car for auto cross type racing where you will be on and off the throttle every other second of the race then a .48 will probably be the better choice.
- 93 mph in the 1/8 mile
Member of J-Body Of Michigan.
I'm running a Mopar T3035 turbo aka Turbo 1 style off an omni on the sunbird. .42 / .48 ar on the housings. It's a fine turbo for up to 250-300 whp, which is overkill for most people. i'm getting 96 mph traps right now at 13 psi.
How fast does it spool? RPM Range Style. I AutoX so I wouldn't mind adding some better acceleration/power to my Cavy.
I have a .48/ .42 turbo waiting to be installed on my ECO. Any predictions?
will I have problems with heat soak? Should I have gotten a bigget turbo?
interesting, well maybe before i purchase the 63 ill try my 48. Its kinda like a dailydriver not looking to crank serious boost out of it just to catch peoples intrest. Thanks for the explaination. Answered a lot of questions.
Emry
96 Camaro A4 383 12.5:1, E85, Full suspension, Nitrous outlet plate kit, hooker headers and catback, 3800 circle D converter.
2002 Silverado LQ4 6.0 CAI, Long tube headers, 4" exhaust
1996 s10- 97 ECU and wiring, soon to be boosted daily driver.
brandon george (lazy ecotec) wrote:I have a .48/ .42 turbo waiting to be installed on my ECO. Any predictions?
will I have problems with heat soak? Should I have gotten a bigget turbo?
I honestly think you will have problems with heat soak. Skilz might not believe so... but then again, we're talking about a baby turbo on an eco. Yes instant boost is great, but your upper end will suffer. No you won't get a lot of boost out of it. But at the same time, I wouldn't recommend running it hard for long periods of time.
I was a retard, and now I'm permanently banned.
ive got a .42 compresser side and a .63 hot side. well see if it works or not.
"IF YOU PERSIST IN DOING WHAT YOU HAVE ALWAYS DONE .....
EXPECT RESULTS NO DIFFERENT FROM WHAT YOU HAVE ALREADY ACHIEVED"
my .42 .48 t3 got me out of vacuum at 2g and full boost at 9psi at 2500rpm. it was disgusting but spotabee is right the heat soak is there. Be weary of top end loss. It spools fast but if you want higher hp numbers get a little bigger turbo. I personally like the .42 .48 cause it fits my driving style so im keeping it. but just a little info for those building.
*2012 mazdaspeed3*
Spotabee Racing (The Fake Z24) wrote:brandon george (lazy ecotec) wrote:I have a .48/ .42 turbo waiting to be installed on my ECO. Any predictions?
will I have problems with heat soak? Should I have gotten a bigget turbo?
I honestly think you will have problems with heat soak. Skilz might not believe so... but then again, we're talking about a baby turbo on an eco. Yes instant boost is great, but your upper end will suffer. No you won't get a lot of boost out of it. But at the same time, I wouldn't recommend running it hard for long periods of time.
Listen to him...he knows what he is talking about. I'm getting a T3/T4 turbo myself which should be great with the modifications I have so far and help with my top end a great deal.
www.kronosperformance.com / 732-742-8837
what exactly does heat soak mean?
Firerat wrote:what exactly does heat soak mean?
I know what it is but I found a better explination for you...
http://www.nexiondata.com/faq/vhf.htm wrote:
Q. What is Heat Soak ?
A. Heat soak is the effect of residual temperatures moving from a hot source towards a cooler place. Heat soak occurs over time and temperatures measured at one physical location may not accurately reflect the overall temperature of the part.
Experiment:
Turn your car off when it is hot, taking note of the temperature gauge position. Wait 2 minutes and turn on the ignition. The temperature gauge reads higher now than when the engine was running. The heat accumulated in the metals of the motor has moved into the now disabled cooling system.
Hope this helped
www.kronosperformance.com / 732-742-8837
well yeah, i get that much.
I guess the question is... how does it affect the top end when turbocharged?
does it just create hotter air?
Firerat wrote:well yeah, i get that much.
I guess the question is... how does it affect the top end when turbocharged?
does it just create hotter air?
Well heat in general is bad. The heatsoak would effect your motor and your turbocharger as far as it's "life" goes. The more your turbo is working unnecessarily, the harder it's working and the hotter it will get. Extreme heat for long periods of time can cause lots of damage the the internals of the turbo or just physical damage itself.
www.kronosperformance.com / 732-742-8837
you NEVER want to just shut off a hot turbo car. if you have been running it and hitting boost, ESPECIALLY a turbo that gets heat soaked easily, you absolutely MUST let the car idle for a few minutes to let the oil circulate in the turbo while the fins are still spinning. in case you didn't know this, a heat soaked turbo spins about 90,000 to 110,000 RPM's inside the housing. The fastest way to sludge buildup, shaft play, and the destruction of your turbo is heat soak and not letting it idle / leaving turbo timer on after running it.
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I know some people are going to disagree with me here, but the larger turbos will likely heat soak sooner on small displacement engines like ours. If you plot the compressor performance, you'll see that the big turbos are not as efficient on our engines, and therefore will be producing more heat. This will bring up the temps on your intercooler, charge pipes, etc. and lowering your power due to decreased charge density.
On the other hand, if you're spinning a small turbo very fast to make big boost, you're also moving out of the optimum efficiency of the turbo.
Like the wise man said, "It's all about balance"
Roof Rack Racer (autoxxxer) wrote:I know some people are going to disagree with me here, but the larger turbos will likely heat soak sooner on small displacement engines like ours. If you plot the compressor performance, you'll see that the big turbos are not as efficient on our engines, and therefore will be producing more heat. This will bring up the temps on your intercooler, charge pipes, etc. and lowering your power due to decreased charge density.
On the other hand, if you're spinning a small turbo very fast to make big boost, you're also moving out of the optimum efficiency of the turbo.
Like the wise man said, "It's all about balance"
It's true. Turbo effeciency is very important.
I was a retard, and now I'm permanently banned.
I'm running a .48 / .42 with no major issues. Yeah, its a little small but it spools fast and at low rpms. As for heat, its not too bad but on longer trips you can see the heat waves coming out of the vents in my hood. And the whole top end thing-I have a 2.2L LN2-what top end? I don't have any!!
Boosted 97 2.2L 5 Speed
Boosted 3.4L soon to come
You should trade the GTR emblems for top end.
I was a retard, and now I'm permanently banned.
What the hell is that supose to mean?!
Boosted 97 2.2L 5 Speed
Boosted 3.4L soon to come
I have a .48 a/r on my car and my turbo/manifold glows red all the time, of course I am ALWAYS on the gas, my old 63 turbo ran MUCH cooler... I am thinking about switching back
LE61T PTE6262 Powered 
There's a big difference between your turbine getting hot and your compressor outlet temps going up.
just saying I noticed my manifold glows a lot easier with the 48 and the 63...
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