boost level

jb's03hd · 04-18-2008, 07:39 AM

i was wonering what the stock boost level is on an 02 and i also wonder what it would be with a 2.7 upper pully the truck also has a jlp lower pully but i dont know what size it is and the guy i bought it from couldnt remember the size i will be getting a bost guage before long but i was wondering what the boost would be with the upper and stock lower thanks

jmarvolous · 04-18-2008, 08:31 AM

stock with factory pulley's should be 6lbs...

DallasGT01 · 04-18-2008, 09:37 AM

Quote:

Originally Posted by jmarvolous

stock with factory pulley's should be 6lbs...

You sir...

ARE CORRECT!!!

jb's03hd · 04-18-2008, 09:47 AM

ok.........any idea on what boost would be with the 2.7 and a stock lower

DallasGT01 · 04-18-2008, 11:13 AM

Quote:

Originally Posted by jb's03hd

ok.........any idea on what boost would be with the 2.7 and a stock lower

10-12 lbs

jb's03hd · 04-18-2008, 01:55 PM

wow thanks for the info

SCBQQSTN · 04-18-2008, 02:48 PM

much better choice for a 6 lb lower, with a pulley that small chances are it will be slipping alot.

C Dillon Go · 04-18-2008, 08:41 PM

Quote:

Originally Posted by SCBQQSTN

much better choice for a 6 lb lower, with a pulley that small chances are it will be slipping alot.

You sir...

Are a genious!!

LOL

6# is a recomended mod from all of us!!

jb's03hd · 04-19-2008, 06:36 AM

well it has jlp lower on it too but i dont know the size and the guy i bought the truck from just said it came off of his friends lightning so i dont know what sort of boost this thing is making but it is probably pretty high with both pullies right (this is my very first supercharged vehicle )
is there a way to find out the size of the lower on it?

jb's03hd · 04-19-2008, 05:47 PM

well it was put on the dyno and made 346hp at 4200 rpm with 13-14 psi so i thought that was respectable

juice03 · 04-20-2008, 12:54 AM

Thats pretty decent, what kinda torque #'s did you end up with ?

C Dillon Go · 04-20-2008, 02:03 AM

Sounds like to me maybe a 4# lower/ stock upper!
A 6# lower with basic bolt on's would run about 380/480.

jb's03hd · 04-20-2008, 07:23 AM

Quote:

Sounds like to me maybe a 4# lower/ stock upper!
A 6# lower with basic bolt on's would run about 380/480.

well this has only the pullies and nothing else done at all the upper is an aftermarket for sure they are doing a custom tune today the one they did yesterday was a preprogramed 91 octane tune from a diablo predator and they didnt graph the torque for some reason. they will do it today with torque but the guy said i see another 10 to 15 hp out of it with the custom and the air fuel ratio was 14:1 with the 346 pull i mean i dont know what a completly stock truck puts to the ground but i think mine is right on or will be but we will see

jb's03hd · 04-20-2008, 07:35 AM

here is a pic or the upper pully i dont think it is stock

huot5 · 04-20-2008, 07:58 AM

doesn't look stock judging by that pic. IS the truck running fine? if you want to bump the power some more, you might want to consider a gator back belt and an addtional idler pulley (metco) or a magnum Powers idler bracket
( preferred) to reduce slippage. and a better flowing air box ( unless the stock one is modded. clean the MAF and get an oil separator.

04-18-2008, 07:39 AM	#1 (permalink)
jb's03hd I never have enough money Join Date: Apr 2008 Location: ogden, UT Posts: 14 View this user's gallery iTrader: 0 / 0%	boost level i was wonering what the stock boost level is on an 02 and i also wonder what it would be with a 2.7 upper pully the truck also has a jlp lower pully but i dont know what size it is and the guy i bought it from couldnt remember the size i will be getting a bost guage before long but i was wondering what the boost would be with the upper and stock lower thanks

04-20-2008, 02:03 AM	#12 (permalink)
C Dillon Go Smiles per Gallon not MPG Paid Member Join Date: May 2006 Location: Miles Away From Ordinary Posts: 2,900 NHTOC member #: 461 View this user's gallery iTrader: 0 / 0%	Sounds like to me maybe a 4# lower/ stock upper! A 6# lower with basic bolt on's would run about 380/480. __________________

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04-18-2008, 08:31 AM	#2 (permalink)
jmarvolous Rumblin Bumblin Stumblin Paid Member Join Date: Sep 2006 Location: Asheville, NC Posts: 1,312 NHTOC member #: 578 View this user's gallery iTrader: 0 / 0%	stock with factory pulley's should be 6lbs...

04-18-2008, 09:47 AM	#4 (permalink)
jb's03hd I never have enough money Join Date: Apr 2008 Location: ogden, UT Posts: 14 View this user's gallery iTrader: 0 / 0%	ok.........any idea on what boost would be with the 2.7 and a stock lower

04-18-2008, 01:55 PM	#6 (permalink)
jb's03hd I never have enough money Join Date: Apr 2008 Location: ogden, UT Posts: 14 View this user's gallery iTrader: 0 / 0%	wow thanks for the info

04-18-2008, 02:48 PM	#7 (permalink)
SCBQQSTN Registered User Join Date: Nov 2005 Location: windermere fl Posts: 1,896 View this user's gallery iTrader: 0 / 0%	much better choice for a 6 lb lower, with a pulley that small chances are it will be slipping alot.

04-19-2008, 06:36 AM	#9 (permalink)
jb's03hd I never have enough money Join Date: Apr 2008 Location: ogden, UT Posts: 14 View this user's gallery iTrader: 0 / 0%	well it has jlp lower on it too but i dont know the size and the guy i bought the truck from just said it came off of his friends lightning so i dont know what sort of boost this thing is making but it is probably pretty high with both pullies right (this is my very first supercharged vehicle ) is there a way to find out the size of the lower on it?

04-19-2008, 05:47 PM	#10 (permalink)
jb's03hd I never have enough money Join Date: Apr 2008 Location: ogden, UT Posts: 14 View this user's gallery iTrader: 0 / 0%	well it was put on the dyno and made 346hp at 4200 rpm with 13-14 psi so i thought that was respectable

04-20-2008, 12:54 AM	#11 (permalink)
juice03 Juice Join Date: Apr 2008 Location: Leduc Alberta Posts: 375 View this user's gallery iTrader: 0 / 0%	Thats pretty decent, what kinda torque #'s did you end up with ?

04-20-2008, 07:58 AM	#15 (permalink)
huot5 Who Dat is Paid Member Join Date: May 2005 Location: MIA Posts: 2,476 NHTOC member #: 342 View this user's gallery iTrader: 0 / 0%	doesn't look stock judging by that pic. IS the truck running fine? if you want to bump the power some more, you might want to consider a gator back belt and an addtional idler pulley (metco) or a magnum Powers idler bracket ( preferred) to reduce slippage. and a better flowing air box ( unless the stock one is modded. clean the MAF and get an oil separator.