StrongIslandBalter

If a 2.4 mani swap is done can you add the 60mm tb from MRZ, or the 62mm. Can either one be added on with out any problems?

Jn2

iTrader: (1)

the big TB they offer is for other engine, they dont make a bigger one for us yet...

XM15

And if you put a bigger TB on that fit, you would need to be tuned for it because at each throttle position, you would be letting in more air than with the stock TB.

11secSRT4

Yeah drive by wire systems aren't to mod friendly unless tuned for things.

06cobaltindallas

ya you could get a t.b. off a 2.4 or 2.0 if you want bigger, but youd need a tune afterwards or youll be riding with that nice orange check engine light lol

YzRider452

Youll be driving a car in limp mode. Tried it with spanky monkeys car, it worked AWESOME for like 15 mins.

Maven

iTrader: (1)

Your L61 already has a 60mm TB, the LE5 has a 65mm you could use with a tune, but there are no documeneted advantages

Jn2

iTrader: (1)

nothing documented so far, i still wanna see a le5 TB on a l61 with the 2.4 mani and cams..those cams need air..

HunterKiller89

iTrader: (1)

those cams are getting air...the stock TB is not a restriction at those power levels...

06cobaltindallas

i was under the impression that the the 2.0 and the 2.4 had 68mm throttle bodies?

Maven

iTrader: (1)

This is assuming that the L61 has an already oversized throttle body comapred to its airflow requirements.

Without dyno results its easy to support the "its plenty big" or the "it needs bigger" argument based on the size of the LE5 TB.


EDIT: I did a lot more math that no one except for me cars about, but it comes down to if we assume that the LE5 TB is the proper size, then the L61 should really have a 62.5mm TB for best performance. And if we go on the premise that the L61 TB is all you need then that means that the LE5 really needs a 62.5mmTB and its current 65 is actually too big.

HunterKiller89

iTrader: (1)

i would argue the LE5's is too big then. there are several people wh installed a LE5 TB on their L61, and saw no gains at all. all it did was make a more sensitive gas pedal.

domesticimportls

would someone tell mr srt that our cars are electronic throtle not drive by wire.. and about the check light i have a l61with intake,header and full 2-1/2 exhaust catless.. my check light comes and goes on its own, and runs the same both ways.

Jn2

iTrader: (1)

i have KnN intake, Le5 intake manifold, vibrant header/dp, 2.5" exhaust, no CELs related to any mods, and i have solid tranny mounts, with a solid engine mount on the way...no cels related to any mods, only have 3 active cels and 3 pending, which are all b/c of a bad rear o2, which ima just have deleted when i get a tune

HunterKiller89

iTrader: (1)

your CEL is caused by the lack of a cat. it wont affect performance...its just on to tell you that you're failing emissions and need to get your cat checked out.

Maven

iTrader: (1)

Same thing......

NWAE Cobalt

iTrader: (1)

as soon as i can get ahold of a tb vince and i are going to test to see if it gave any gains or anything...we will work with the same dyno i have used before and will prob do a before and after as the tb is easy to swap out