who has the 3.6 pulley on their maggie?

[BlownSS]

I am putting the kooks headers on my ls3 and looking to find out hownmany others have switched out the pulley....anybody have any problems? Good gains? Thanks!

[Hendrix-Engineering]

Most of the camaro kitts we sale have the 3.6 pully and every one seems to be happy.

[BUMBLEB]

I am running a 3.4 9.5psi boost with no problems

[FloMoCamaro]

I am running a 3.6 pulley and have no problems either... Go for it...

[alssiri]

Originally Posted by BUMBLEB

I am running a 3.4 9.5psi boost with no problems

Same here.

Ahmad

[BlownSS]

Originally Posted by FloMoCamaro

I am running a 3.6 pulley and have no problems either... Go for it...

I noticd that you are also running a boost-a-pump.......were you runnning out of fuel or is this for another reason?

[camaro1]

a friends car has the kooks long tubes, rotofab cai, and a 3.6 pulley,, 52# injectors were at 100% duty cycle by 6000rpm, swapped out injectors for a set of 72#/hr and duty cycle is much better

[BlownSS]

arent the stock injectors with the maggie 60#? Im not exactly sure what you mean by duty cycle. Im trying to figure out if i am going to need to do anything other than installing the headers / pulley and get a new tune?

[carguy]

I have 3.6 on My L99 with ARH Headers Kats and a tune and started running lean at 6400RPM

I had to set rev limmiter at 6400.

My LS3 I couldn't put a 3.6 on it because I ran out of fuel at 5800RPM. Can't have that.

I just swapped fuel systems yesterday and put in an ADM control Module and pump set up and switched to a 3.6 as well as a Innovators west 10% overdrive Crank Pulley.

I Haven't been to the dyno for a re tune yet so we will see if the fuel system holds up.

I live where it gets cold in Fall and spring ( Don't drive it in winter) and I need to keep the a/f ratio in the 11's or I risk serious lean out conditions and we all know what happens than!

I kept the 3.6 on the L99 Just had to set limmiter down but still runs a little lean for my comfort. As soonas I figure out which way to go on fuel systems I will upgrade it as well along with adding the 10% overdrive crank pulley.

I have watched too many guys have belt slip with a 3.4 Time and time again That is why I went with the crank overdrive pulley. I know another guy running same set up and he is right at 10 LBs of boost. Boost a pumps have been failing. Check it out all the Big guys are either using Fastlane pumps or ADM set ups.

LPE is using ADM so Is Jannetty Now They have a ctsv Module and pumps so the system is set up for deul pumps . I have heard nothing bad about either but before upping the boost Make sure you keep an eye on A/F ratio. Depending on where you live or plan on driving you will risk lean out conditions with a stock pump if....You go lower than a 3.8 and have headers and exhaust. The more air you flow the more fuel you need. Some are tuning way too lean !

Here are my two Dyno's One L99 with 3.6 Base line 3.8 I am just border line with arh headers and Corsa exhaust. Lookat A/F ratio at bottom.L99 was running way lean on canned tune but I added headers and exhaust after canned tune that is why first pull was really lean.



Here is LS3 with 3.8 Couldn't go with 3.6 would have been out of fuel at 5,800.I have since upgraded fuel system and 3.6 pulley and 10% overdrive crank pulley. Dyno and tune the 18th will post results after the tune.

LS3 w/3.8 Kooks headers and Kats, Corsa exhaust.



You can see it was running lean on Canned tune at end of RPM range. We fattened everything up and gained a little torque but Hp stayed almost the same. With More Boost and fuel torque should go through the roof on next tune.

[carguy]

FYI. Injectors are big enough if you have fuel pressure.... They should be 60# at least that is what came with My Kits. They are LS9 or ZR1 injectors. Some after market injectors may work better but only because of the spray patter not because of them being bigger.

At least This is what I have been told by those in the know. Don't shoot the messenger and sorry if I am wrong on any of this. It is only what I have found out while trying to solve my A/F ratio issues in the quest for more SAFE POWER !

[BlownSS]

so.....should I just put on the headers and get a tune and call it done......I really dont feel like changing the fuel system......? i think i just want to settle for the hp that the headers will free up and be ok with less boost and a better flowing /efficient motor. How does that sound?

[FloMoCamaro]

The way I understand it is - at about 500-550 rwhp you should look at adding more fuel. If I go any further with it, I will probably swap out the Boost-A-Pump with the ADM High Output Fuel System. I was also considering a meth injection kit, but when talking to someone about it, they convinced me it was not a good idea.

Oh, my 3.6 pulley is giving me 7.5psi of boost. I am thinking of changing to a 3.4 - I would like to get as close to 600rwhp as I can. The new pulley alone should be good for about 20rwhp. The weak link is the auto transmission. There really isn't many upgrade options out there right now for the trans, so I think I will sit back and wait a while and enjoy what I have. Believe me, I'm not complaining... But you know, you always want More - More - More...

[BlownSS]

Originally Posted by FloMoCamaro

The way I understand it is - at about 500-550 rwhp you should look at adding more fuel. If I go any further with it, I will probably swap out the Boost-A-Pump with the ADM High Output Fuel System. I was also considering a meth injection kit, but when talking to someone about it, they convinced me it was not a good idea.

Oh, my 3.6 pulley is giving me 7.5psi of boost. I am thinking of changing to a 3.4 - I would like to get as close to 600rwhp as I can. The new pulley alone should be good for about 20rwhp. The weak link is the auto transmission. There really isn't many upgrade options out there right now for the trans, so I think I will sit back and wait a while and enjoy what I have. Believe me, I'm not complaining... But you know, you always want More - More - More...

Im ok with 550 rwhp or under as long as its safe and reliable. At that point im still looking at the max for the clutch....the stock fuel system etc. How are lingenfelter and slp getting 550 rwhp out of their cars without the boost a pump ?

[FloMoCamaro]

with a new cam - I think???