• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

New to L67 motor, need quick questions answered

S

SLO GTO

New member
What is the smallest pulley I can put on w/stock injectors?

What is a good company/software I can get to tune this thing?

I'm about to pick up a Buick Park Ave Ultra, 1996.

thanks in advance.
 


your going to need exhaust work and other mods to drop pullies. you will be decently moded before you have to worry about injectors.

hptuners for software.


pulley should be your last mod.
 
you will run out of injector somewhere in the 3.2-2.8 range depending upon your tune and what else you have done.

you cannot just drop pullies on this car. you need a lot more stuff to go with it until you will be able to drop pullies without blowing up your car. this is not a normal blown car like a mustang. you need a ton of work to even get to a 3.0 pulley (one of the big things being a cam or an intercooler).
 
You see, this is where people get confused. The reason why you can drop pulleys on a cobra is b/c its intercooled. That is why bio suggests and me as well suggest an i/c as a first mod.
 
cant just go droping pullies on a termi either with out a tune also.


but yea its alot more than just changing a pulley.


im on the stock pulley and run faster than alot of guys with a 3.4 pulley. why? because im not knocking as bad and can use my boost effectivly.

its not all about boost.
 
For the GP...get in th General Tech Section and read the Safely Modding Your 3800 Thread I wrote...should help you out pretty well since you aren't too familiar with this platform.

blowfishRus6 said:
cant just go droping pullies on a termi either with out a tune also.
Click to expand...

Yes...you can...very much so...a lot of Cobra guys run down from the stocker to a 2.85" or 2.76" as a FIRST mod. Like Mini said...they are I/C'ed from the factory so they are a little conservative. And with headers and a intake/ported TB/plenum you can go even lower. Tunes do wake them up a lot but you can drop a pulley without a tune and not have to worry about anything.
 
Last edited:


intercooler aint going to help with fueling...


a 2.76 pulley puts them around 15psi. thats 7 over stock. do you not think it wont lean out under wot??
 


so its okay to add 7 more pounds of boost to it???


yes you can run it, i have not heard of to many termi's blowing motors. but at the same time ive seen pullied cobras running about the same times as non pullied cobras because the tune is off. so whats the point.
 
just spoke with a termi owner. they said it was absolutly nessicery to tune with droping pullies. said a/f would be to far off.

when ever you see them moding a cobra on hptv or something they always do a tune with it.

a lean conditon will blow a motor just as fast as knock. well probably faster
 
More closer to 10psi...not 7. But...You win...I'm not arguing about a Cobra on a GP forum. I know Terminator's quite well since my buddy has 2. One is a pullied 10th Anniv, the other, a 1000hp pump gas TT monster.
 
blowfishRus6 said:
just spoke with a termi owner. they said it was absolutly nessicery to tune with droping pullies. said a/f would be to far off.

when ever you see them moding a cobra on hptv or something they always do a tune with it.

a lean conditon will blow a motor just as fast as knock. well probably faster
Click to expand...

lean causes knock. Then knock blows the engine.
 
bluegtp91 said:
More closer to 10psi...not 7. But...You win...I'm not arguing about a Cobra on a GP forum. I know Terminator's quite well since my buddy has 2. One is a pullied 10th Anniv, the other, a 1000hp pump gas TT monster.[/QUOTE]

what does that have to do with it?? i know some termi owners also, how do you think i asked... hell ask them.


and well, would it not pop a pistion with no gas in there??
Click to expand...
 


Surprised no one has said anything.. The 96 Ultra has a Series 1. The m62 is pretty much junk! If anything Save your money and pick up a Series 2 or a car with it already in it. That way you get a better trans as well (the 96 model was the last year of the 4T60e-HD) 97 and on is the improved 4T65e-HD.

Not sure of too many modded series 1's, but the ones that are are dead slow haha. Also, something else to think about is maybe changing the M62 for the M90 (along with LIM) and whatever else might be needed. Not sure if it's been done or can be done, but it is an option to look into rather than putting wrench time into something that isn't really going to benefit from it

Just food for thought.
 
You must log in or register to reply here.
Back
Top