uh, anyways. this thread sure got raped.

thought about it, but not seriously. maybe someday.

As of right now, there are no 2.4's on this website running a 2.8" pulley (that I know of)

 

I was planning a 2.7" then a tvs swap on my forged internals. However im disappointed in what i've seen of the tvs so far... i bought into the hype =[

the really big issues i see with the tvs on our cars is that with the 2.75" lsjwannabe is running something like 25psi... this goes over the limit of the 2.5bar map, lots of ways to get around this, but considering with a decent turbo at 18psi (alot less dynamic pressure) you make alot more power and have alot more room to grow til the map limit.

its hard to reason the tvs over turbo charging except for one thing, low-end torque. However, I got modified mustangs, Z's, camaros, and GTO's to kill... realistically, the tvs isnt going to do that.

 

Well if you where tuning for boost on the LE5, dont you disable the dynamic airflow and do a stright MAF tune? So maxing out the VE and our 1 bar MAP means nothing.

 

That's what my tune is....straight MAF tune. However, it is possible to do a MAP/MAF blend tune if you're willing to take the time.

 

since we have no way with HP Tuners, there really is not way to tune it liike that. Maybe with EFI Live you could/

 

I thought Beck's tune was a MAP/MAF blend. You have to have the PE enrich come on at a certain kpa (44-56kpa)ish?

Not sure, I could be wrong. I don't even know how to adjust my own MAF tune even though I've stared at the tables for hours. I sent you an email btw. Did you get it?

 

Instead of entering your PE at a certain KPA, you can set it to evter at a specfic throttle %. So say anything over 50% throttle you enter PE. There are a coule of differnt ways of doing it.

Nope never got an email
REDFOCZ@hotmail.com

 

yeah it's a balancing act. fred spent about 2hrs on it and then said F it--straight MAF tune is much easier.

 

lol I bet.

 

naw, your not disabling the map when your enabling MAF only calu, map is still used in alot of other tables even for fuel. if you want to see an example of this disable dynamic airflow, and unplug your map.

these are two different areas that your talking about. the main method of calculating fuel vs. using a rescaled map for areas of the tune like stock. Yes, there many ways to do it, but its much cleaner to rely on multiple independent sources, TPS, MAP, RPM.

your not disabling the map when your enabling MAF only calu, map is still used in alot of other tables for fuel. if you want to see an example of this disable dynamic airflow, and unplug your map.


beck's tune uses map in areas of the tune that would normally be used, with a rescaled 2.5bar map. However, main fuel calculation is done with MAF.


eh?

 

BUMP!!!

So are there any 2.4L guys running the TVS on their cobalt? I'm interested to see the answers, no 2.0 guys either. i jsut want to see if this thing worked on the 2.4 for anyone.

 

yeah it will work. no, no one tried it yet. maybe you should.

 

welp...

we'll have another 2.4 s/c in the midst here within the month.

only m62 tho

 

I would like F/I on my car someday, so maybe.

 

old bump

i've been cruising some gm forums, trying to find what kinda boost the le5 block can handle
no luck yet

 

LE5 stock internals, right??

 

I know a couple of the 2.4 s/c had problems with there trans around 240whp

 

the tranny or the clutch?

 

From what i read in becks thread he kept going through tranny's 2 or 3

 

though reading a couple of other threads, he seemed to be the only one with that problem

 

Idk why you'd want to put alot of boost on a motor with high compression i guess if you wanna blow your car up you can but... personnally i don't wanna do it

 

I'm not set on anything
just trying to find all the pros/cons of going this direction

 

Cause its fun, and then if you blow the motor it forces you to re-do the internals. Which then could lead to more boost

 

auto tranny handles it fine..not sure about the manual...im gonna drop pulleys next year 2.9 or 2.8 might stick with the 2.9 to be safe with the 60#s ...i know pjk91 is dropping to a 2.7 or a 2.8 i wanna see how it goes and if a 2.7 would be the samllest pulley to go on a 2.4

 

lawl if i did it i'd be out of a dd thats the problem and it's an 08 so