S/C at 12psi!!!
#22
Originally Posted by lundy
NST's fit a little bit better. The machining on it is perfect as where ZPI's had a little play at the keyhole. I used the ZPI's for 4k+ and never had a problem though. NST does pulley's and nothing else and I would say they do it the best
Was that version 1(AP pulley) or the version 2 ZPI pulley?
#23
I love the turbo sound and performance, but I also seek reliability
I mean I'm not saying it's a bad mod, but that you're putting just as much or even more stress on the engine running at 9.5-12psi as you would with a turbo. You'll likely not see any differences in reliability or engine life between the two, unless you leave the supercharger untouched.
#24
Originally Posted by mattvs
I love the turbo sound and performance, but I also seek reliability
I mean I'm not saying it's a bad mod, but that you're putting just as much or even more stress on the engine running at 9.5-12psi as you would with a turbo. You'll likely not see any differences in reliability or engine life between the two, unless you leave the supercharger untouched.
#25
Originally Posted by rhythmnsmoke
Originally Posted by lundy
NST's fit a little bit better. The machining on it is perfect as where ZPI's had a little play at the keyhole. I used the ZPI's for 4k+ and never had a problem though. NST does pulley's and nothing else and I would say they do it the best
Was that version 1(AP pulley) or the version 2 ZPI pulley?
#26
Originally Posted by Scion-ce
I don't mind paying more money for more reliability
Now if you didn't change the pulley I would agree with you, but you're in the same boat as the turbocharged tC's now.... no warranty.
#27
Originally Posted by DouBLeJ16
Originally Posted by Scion-ce
I don't mind paying more money for more reliability
Now if you didn't change the pulley I would agree with you, but you're in the same boat as the turbocharged tC's now.... no warranty.
#28
So you need to run 12psi, invest $1000+ into unichip, have all the supporting mods to run 250hp? How is the spool comparing to turbo? What is the TQ numbers?
Props on the pushing the power levels with supercharger though.
Props on the pushing the power levels with supercharger though.
#29
I fully understand that, but thus far it seems to have been mainly turbo apps that have been having issues.. unless I have been missing something
#30
Originally Posted by retrodrive
So you need to run 12psi, invest $1000+ into unichip, have all the supporting mods to run 250hp? How is the spool comparing to turbo? What is the TQ numbers?
Props on the pushing the power levels with supercharger though.
Props on the pushing the power levels with supercharger though.
#31
Originally Posted by Scion-ce
I'm one of the few s/c guys that hasn't chaged the pulley. In another thread, I stated that I wanted to see how far I could go with stock boost. My experiment is to see how much power I can make while retaining warranty. This means no boost pulley, no engine management, no cams, no engine work. I am waiting until the supercharger intake to come out. I already have a full exhaust from the MMW header/s-pipe to the DraXas catback. Once I get the intake on, I will dyno my car and post results. I suspect I can reach 230whp with this setup. Then once I put a 9.5psi pulley on, I should reach my goal of 250whp. We shall see.
You must have some deep pockets.. Changing the pulley is definately the cheapest way to make power with the SC (until something goes wrong).
Fast, Cheap, Reliable - You can only pick 2.
#32
So who currently dynos the most with the TRD SC?
There's so many of them on this board I can't keep up with a simple search.
With the turbo's so far I've seen 420whp on stock internals and 533whp on a built-stroked engine (jo-tech).
There's so many of them on this board I can't keep up with a simple search.
With the turbo's so far I've seen 420whp on stock internals and 533whp on a built-stroked engine (jo-tech).
#33
You do have to realize that I was making 240whp at 8.5psi before. It's just the in-efficiency of running 12psi with no intercooler/water injection that causes low power gain at 12psi but 240whp with a stock header at 8.5psi, not to bad in my eyes. You shouldnt just compare different setups and add hp numbers and say one mod is better than the other or one mod does or doesnt make power. On average with the unichip gives you about 30whp. And you cant just look at as 30whp but the acceleration factor as well. 12-15 more ft/lbs. at 2500rpm and the fact that you get a lot better gas milage due to the better a/f ratio. So look at it as if you have 250whp w/o the unichip, you could very well have over 275+ w/ the unichip
#34
Originally Posted by mattvs
I love the turbo sound and performance, but I also seek reliability
I mean I'm not saying it's a bad mod, but that you're putting just as much or even more stress on the engine running at 9.5-12psi as you would with a turbo. You'll likely not see any differences in reliability or engine life between the two, unless you leave the supercharger untouched.
#36
Man. Countless threads on countless web sites and people still don't fully understand the difference of a s/c and a turbo.
A s/c @ 12 psi boost is at what RPM? they should have mentioned that. I am assuming RED LINE. Because a sc is directly affected by RPM.
A turbo @ 12 psi is at 12 PSI generally around 3,000 RPM depending on turbo mating etc.
A s/c @ 12 psi boost is at what RPM? they should have mentioned that. I am assuming RED LINE. Because a sc is directly affected by RPM.
A turbo @ 12 psi is at 12 PSI generally around 3,000 RPM depending on turbo mating etc.
#37
12PSI is at redline. However 7psi(stock boost) is now at about 4k. Still does not compare to the accelleration of turbo. I made around 230 ft/lbs at redline where T-NETICS make 260 ft/lbs at 4k. For all out performance and hp (on a Tc) turbo is king.
#38
Originally Posted by TimmyT
Man. Countless threads on countless web sites and people still don't fully understand the difference of a s/c and a turbo.
A s/c @ 12 psi boost is at what RPM? they should have mentioned that. I am assuming RED LINE. Because a sc is directly affected by RPM.
A turbo @ 12 psi is at 12 PSI generally around 3,000 RPM depending on turbo mating etc.
A s/c @ 12 psi boost is at what RPM? they should have mentioned that. I am assuming RED LINE. Because a sc is directly affected by RPM.
A turbo @ 12 psi is at 12 PSI generally around 3,000 RPM depending on turbo mating etc.
My point was solely that the same amount of boost does not equal the same amount of stress, or the same amount of gains in HP/TQ.
#39
Originally Posted by lundy
12PSI is at redline. However 7psi(stock boost) is now at about 4k. Still does not compare to the accelleration of turbo. I made around 230 ft/lbs at redline where T-NETICS make 260 ft/lbs at 4k. For all out performance and hp (on a Tc) turbo is king.