is it possible? - Page 2

03MNAlero · 06-10-2008, 04:48 PM

Intense used to have the 3800 record for a twin charged gtp. ran somewhere in the 9's

bigdaddyD · 06-10-2008, 04:55 PM

whats the record for a 3400?

cherrington17 · 06-10-2008, 05:11 PM

Quote:

Originally Posted by AJules

Could you post a picture?
I'd like to see that.

i'd like to be able to find it again. it was sick (and hilarious to see a golf that can pwn an enzo... in the 0.60, not handling)

i'll have to search when i get home tonight, maybe i'll find it again.

natedawg9640 · 06-10-2008, 05:40 PM

Quote:

Originally Posted by bigdaddyD

ya i have the 3400, as far as moving the battery, is there a kit out there? also im assuming i would probably have to remove the air intake?

ummm... yeah i don't think you'd need that stock intake any more

Spilner521 · 06-10-2008, 05:42 PM

Here's pics of the twin charged 2.4 on Jbody.org. It's a pretty sick setup:

Although twin charging can be done with some success, I'd much rather use just a turbo. It's a common myth that turbos always have all kinds of lag. When you properly match the size of the turbo to your engine, there will be almost no lag and you'll still have more power potential than you need, especially when using a ball bearing turbo. It's when you start matching 800hp turbos to 1.8L engines that you'll see a lot of lag.

Twin turbo and Bi turbo are the same thing, where two of the same size turbos are used and each one gets its own bank of cylinders to feed it. Sequential twin turbo is when a small turbo is used to spool a large turbo. Sometimes they will each have their own bank of cylinders, sometimes the exhaust will run through the small one and then through the large one. The most complicated version is when exhaust is routed through the small turbo and then at a certain boost pressure a valve opens and allows exhaust to flow to the large turbo, even though they're both mated to the same exhaust manifold.

Quote:

Originally Posted by [ion] C2

Yes of course it's possible. The best setup is to have the turbo bypass the supercharger completely once it's spooled to eliminate any flow restriction the supercharger might cause.

There's a twincharged j-body that made 240whp on 7 PSI, and 248whp on 11 psi with just the turbo. it's far more efficient to twincharge, and you get the supercharger whine, turbo whistle and blow off valve sounds all together

His original car (blue Sunfire) made 240whp on 7psi twin charged, then his new car (silver Sunfire) with a different engine made 248whp at 11psi with the same twin charged setup that he swapped over. Those pics up top are of his new setup on a fully built engine.

I'm not sure I agree with you that twin charging is more efficient, but it's certainly a way to get good response from a big, laggy turbo. Like you mentioned, this setup would be most efficient if the supercharger could be completely bypassed once the turbo is spooled.

bigdaddyD · 06-11-2008, 10:45 AM

once the turbo is spooled, does it stay spooled till the car is turned off or does it constantly have to respool? sorry i dont know much about turbos.

[ion] C2 · 06-11-2008, 10:58 AM

lol spooling just means when the compressor spins at its most efficient speed and is making the peak or near peak boost you want. it slows down depending on many factors. it only "spools" when you put load on the car or want to go fast

bigdaddyD · 06-11-2008, 11:19 AM

sorry bout that, when i hear spooling, i think printers, i hate being an it guys somtimes.

cherrington17 · 06-11-2008, 11:51 AM

not the same one i remember seeing, but similar results.

http://www.europeancarweb.com/tuned/...rld/index.html

[ion] C2 · 06-11-2008, 11:52 AM

rofl all that work and the stock intake.

cherrington17 · 06-11-2008, 11:59 AM

i think it said the car is like ~30k, then the mods add another 28k(ish) so for less then 60k, you can have a car faster then the fastest supercar. (0-60) which i found funny.

but this was just after the enzo came out.... by now i'm sure they have something a little better.

kwhauck · 06-12-2008, 05:33 PM

Quote:

Originally Posted by bigdaddyD

ya i have the 3400, as far as moving the battery, is there a kit out there?

universal battery kits, basically some 0 gauge wire, are around $50

jayson_waltz · 06-14-2008, 02:58 AM

that would be sweet in an alero. i did see in a mag. a while back that VW was gonna be doing that from the factory

1TONK5 · 06-14-2008, 08:48 AM

Quote:

Originally Posted by cherrington17

i think it said the car is like ~30k, then the mods add another 28k(ish) so for less then 60k, you can have a car faster then the fastest supercar. (0-60) which i found funny.

but this was just after the enzo came out.... by now i'm sure they have something a little better.

True, but most supercars are built to do just a little more than sprint in a straight line. A lot of these exotics have relatively unimpressive 1/4 mile times when you compare what can be done with a heads/cam ls1 car...but the second you tell a T/A to do anything but travel in a straight line everyone gets their laffs.