I was wanting to look into turboing my tC, but I wasn't sure what the differences might be from an automatic to a manual

 

well the auto will have more parasitic loss meaning the same setup on a manual will get more power. and the auto wont be as strong as the manual and would be best to build up the auto some before adding the turbo. hope that helps

 

as far as the kit is concerned, i would think not. the only difference where the turbo and downpipe are is the ATF lines but i'd hope that these companies are smart enough to set them up around the OEM path and not take a chance of those hitting.

as far as prepping the car, you would want to get a larger ATF cooler and mount it somewhere AWAY from the turbo. right now the lines would be going very near them and that would not be good for your automatic transmission. heat is it's enemy. you can buy transmission coolers from any good performance store.

you may also want to look at a better torque converter if you're into lots of drag racing.... along with a limited slip. I would recommend the Quaife but it's not out yet.

 

Yes but automatics are in boost more than manuals (no manual shifting) and CAN be (I didn't say they are all the time.. don't flame) easier to launch.

 

is it true automatics dont "blow off" inbetween shifts? which is good for drag

 

put me(automatic) up against a 5 speed turbo xB and we will see who will win...all i can say is i dip off 1 psi in between auto shifts and a 5 speed hits vacuum in between shifts...see ya lata stick...supercharger is a different story though

 

well u go race an xb w/ same setup and a mtx and then come back to me and tell me what happens

 

Do you have a stall? If not, you would get raped off the line by a decent 5spd driver (unless you power brake it every time... then say bye bye auto tranny fairly soon) . A good 5 spd driver will shift barely slower than your auto and an auto has a ton of "slip" compared to a 5spd. So stock for stock with nothing but the same turbo kit added I seriously doubt the above. With a good, well built performance auto dropped in yes, but with a stock unit and no high stall a competent 5spd driver should have you. Keep in mind my mention of a well built performance tranny. I have seen some autos that will surprise the hell out of you... but I have also seen the same ones killed by a good driver in a 5spd.


And as far as the SC being different, are you reffering to a centrifugal unit? If so, they also exhibit lag (not quite as severe as a comparable turbo, but still there). If you are talking about a screw or roots type, then yes, they are more linear in nature.

 

5sp overall is a better setup for the performance orianted. U can do a lot of things with a auto, but put a 5sp vs a auto (both stock) and see who will win

 

No stall, bring it up to close to 1800 RPMs(at full spool at 3k-minimal lag), in which my tranny will be fine for years to come...im no drag racer by any means, so life expectancy wont be sacrificed too hard. Automatic will be a lil bit more slushy than a manual of course, but I make up for it in between shifts when Im still boosting. As far as supercharger goes, a centrif charger IMO is nothing but a belt driven turbo
I should have specified that I was talking about a roots which is always boosting in motion

 

True but the thread is the diff between turbo'd auto and turbo's stick....some of the worlds fastest cars are automatics.

 

yea well those automatics are not stock they are built like a tank. we're talkin about a tq convertor, trans brake, valve body, trans cooler, limited slip, etc... thats when your transmission will be able to shift faster than a human. but pretty much w/ same setups as long as u can drive a mtx half decent u will pull away from the atx w/ same mods. that goes for u too simplyscion :-P

 

Looks like im gonna hafta line up to 5 speed boosted box and see what happens...Ill make sure to post up a video regardless if I win or loose
now...where to find one in my area

 

There is no difference between auto and 5-spd turbo kits. They're one size fits all, it's just that the 5-spd can take more abuse. As far as an auto is concern, you don't necessarily need to build it up if your using a conservative amount of boost (~6psi). Just add a tranny cooler and some synthetic fluid, and you should be alright. The auto won't blow off during shifts (it will only blow off when you let off the gas), so it's always boosted.

 

Always in boost...like I said before, i drop off 1 psi in between auto shifts, while the 5- speed has to make up for lost boost (about 20 psi vac level) in between shifts...gets a lot harder to spool up quickly in 3rd-5th I would think correct??

 

wastegate opens up. blow off valve opens when the throttlebody is closed. you should use a MBC or EBC to control boost spikes between automatic shifts.

 

already got a turbo xs hpbc installed...still spikes a tiny bit though, gotta play w/ the wastegate