I posted this over in the like 6 or 7 page 2.8" pulley and stage one thread, but no one answered, so I have made another thread. Sorry for the clutter, but Im new here, and not sure of you that have these modifications, or aware of those of you that have dyno sheets, or what not. So my apologies, but heres my re-post....

1.) Are there any of you that have the GM stage II package and a 2.8" pulley? Stage I and a 2.8" pulley and a stage II belt, or tensioner, etc. (SEE MY P.S.)

2.) If you answered YES to question 1, do you have any time slips, video, or any numbers of what the car is putting down?

3.) Also, I know that some have been asking if I believe the SFPH pulley will work with the GM setup, of if there is a pulley that will? Has anyone confirmed that any other pulley will work with GMs' interchange hub/pulley system? (with stage II correct?)

I ask all of this because I think Im going to use my discount to get the stage II package, and then slap a 2.8" pulley on it from SFPH and wondered what kind of numbers and times the thing should run. I want to get the stage II kit so I can put the GM 3. whatever" back on there for warranty work.

P.S. I read that someone here earlier purchased a stage I kit, and also somehow got a stage II belt. Is there a part number for the belt, or how was the stage II belt acquired?

Thanks,
Chris~

 

My only problem with this idea is that the flash is meant for a diferent set of pullies.

The fuel delivery will more thsn likely not like altering the pully from those sizes that are supposed to come with the kit...

 

To answer number 3, no. I belive someone tried it and it did not fit.

 

1. No, I have the stage 2 that came with the 3.066. Dynoed 222hp/195tq on a mustang dyno if that means anything.

3. No, nothing fits on the GM hub as of yet.

 

Well don't stock ss's dyno around 185-190 whp on a mustang dyno? So that's a good 30-35 whp gain (just estimating)

 

I dyno'd stock 202hp 190tq on a mustang dyno.

 

Nice numbers man. You got a good bach or good air where u are.

 

Maybe a good batch, but I don't think so. Xenox Maybe. But the air was great when I dynod.

 

i dynoed 248hp 229tq on dynojet with intense stg3 an gm flash

 

Yeah Dynojet is crap. Go dyno your same mods and you will have different numbers. Im pretty sure you dyno about the same as me maybe a little more.

 

Send glockglade a pm. He is running a 2.8" pulley. I'm sure he could answer any of your Q's.

 

Yeah you got that wrong. Mustang dynos are ****. Dynojet makes the best dynos in the world!

 

mustang dynos are more accurate, dynojets give you "inflated" numbers.

 

lol, ok, whatever.

 

dyno is a dyno is a dyno. as long as u go to the same exact dyno, same exact dyno tech when dynoing your car after mods. dynos are for tuning purposes thats it. and to give u a rough estimate of how much power u got. so if u go to a dynojet stay w/ dynojet and stay w/ the same tech. cuz if u do a base line at one place then add alot of mods then go to someone else and only get a 2hp increase dont be pissed cuz correction factors might be alot different.

 

DYNO-MMMIIIITTTTEEE!!!

 

MAXPIT has the stage I belt and a 2.8" pulley from what I've read in the other thread regarding 2.8" pulleys and GM stage kits. Im going to PM him and ask him how he got the stage I belt.

BRIAN MP5T- I guess that might be an issue, but there seem to be a good number of guys running smaller pulleys and a GM reflash. Id rather run a smaller pulley with a reflash than none at all since it compensates to some effect. Plus it increases the redline to 7k (right?)

1.) I was hoping for about 240whp with a GM stage I, GM Stage II belt, GM reflash, and a 2.8" pulley. Do you think thats asking or expecting too much?

2.) What would be required to get 260-270hp at the wheels? I guess thats what Im shooting for, but I would imagine 250 would be sufficent.

Thanks all,
Chris~

 

ZZperformance sells an adjustable bracket for sizes that can range from Stock to below 2.5" I installed one myself, would've taken less than 30 minutes, but the screw on my factory bracket was a bitch to unbolt. I'm running currently a 2.9 pulley that I purchased from Billetflow and will try 1 step colder NKG plugs. Any undersized pulley is going really open up the LSJ (as I can attest to that) but just remember to proceed with caution. I wonder what larger fuel injectors and a tune from HP Tuners would do for the LSJ? Would a reflash for stage I or II even be needed if you had a complete tune from HP tuners? Might be a better route to go. Will have to wait and see what the Jury decides.........

 

I would imagine the HPTuners tune would be far more adjustable than a GM stage reflash. Isn't the HPTuners software essentially a stand-alone engine management system?

Im just looking at it from the warranty stand point as well. I'd like to stick with the GM stage kit to keep the warranty in effect. However, Id like to swap in a smaller pulley for added performance.

GM stage I gives you larger injectors, and a reflash, and A/F ratios Ive seen from guys running it with a smaller pulley are in a good range, if not overly rich. So I'd imagine that a 2.8" would yied no problems.

Also yes, Id move down the the 7RE plugs, and gap them to .38

later,
Chris~

 

dynojets ******* blow donkey nuts, wtf are you talkin about

mustang dynos are much closer to true power compared to DynoQueen inflation which only calculates how fast you increase Mph

 

Dyno's are meant to see hp gains from the mods you have done and to check the a/f ratios....Other than that, it's personal preference. Yeah Dynojets give out higher numbers, but so what? It's just a tool to gauge how well your car is performing.

 

inflated #s make me happy

 

As far as I know you have to BUY Stage 2 to get the Smaller SC belt. There is a part number for it but not sure if it can be purchased seperately. I tried the SFPH 2.80" Pulley on the GM hub and does not fit. The GM hub is too large in diameter to fit inside the pulley ring and the holes are slightly off. Someone dyno'd 249hp with Stage 2 i think. I went a Step colder in plugs with Stage 2. Car runs great. Hope that helps

 

Does the BilletFlow pulley come with a smaller belt/hub?

 

The Billetflow, ZZP, and SFPH are Hub Systems that allow you to interchange the pulley rings onto the hub. The belts are not included with these