Is 12 psi of BOOST, wrong or right

[Boosted32v]

and if it is WRONG, I do not want to be right, lol! But I mentioned this to someone at the track and they thought It was too much. I put in my Lunar boost gauge and it is showing 12psi @ 45 degrees at WOT. I know that at WOT this damn truck is SCREAMING and it sounds and feels gooooood. 'H' :banana:

[Mark #2]

Boosted32v
Some of use have 13.5, some 14.5, What size pulley?
Mark

[Boosted32v]

Originally posted by Mark #2
Boosted32v
Some of use have 13.5, some 14.5, What size pulley?
Mark

It has the 4lb lower, Volant CAI, JDM superchip. I thought it was kinda of low myself, but I am new to the Lightning game so I was not sure. I have heard of guy's having 14 and 16, so I thought I was in the safe zone with 12psi...'H'

[03LightningRocks]

8lbs stock + 4lbs over pulley = 12 lbs


I am pegging 15lbs total boost. I have a 6lbs over pulley. My truck was hitting 9 stock. 8-9 stock boost is the usual.

There are also some variances by pulley manufacturer. Some called 6lb over only put out 5.5 over.

I just thought of another factor...I have a reworked upper plenum( it's smoother inside so allows better flow) that may be allowing more air. I alos have an Airforce One filter Kit which has more surface area, allowing more airflow.


Rocks

[cpeapea]

plus when your overdriving the s/c you are also creating more heat, so the more the over drive the less increase boost you get

[Crawford]

My autometer showed 9.5 stock
#2 it shows 12
#6 showed 16 when the air was real good, 15 otherwise.

[microsuck]

under wot my lunar shows 9 stock 12 with 4#er.
Andrew

[cpeapea]

well you weiner, you got lucky with a good s/c

[Crawford]

Probably just got a "lucky" gauge! LOL! :D

[Badcarma]

I also have lunar gauges, a #4 pulley, I am 14-16 reguarly in cold air.


Scott....................

[wesman]

I have the LFP 4 & 6# interchangeable.....I'm losing boost somewhere. I get 11.5-12 psi WOT on my autometer boost gauge :(

--wes

[Boosted32v]

I also have seen 12.5 to 13.0 on cold day's (30 to 40 degree's) and I see 12.0 or 11.5 on warmer day's. So I am going to assume that everything is ok. 'H'

[microsuck]

man! Bosted32v! I just noticed you have some pretty hot cars. You need to alternate them when you drive to the meetings so we can get to check them all out. how fast is that sprayed and blown cobra?
Andrew

[ken cryder]

Originally posted by wesman
I have the LFP 4 & 6# interchangeable.....I'm losing boost somewhere. I get 11.5-12 psi WOT on my autometer boost gauge :(

--wes

wes you need a cool box .

with a #5 lower pulley i see 14.5 - 15 . on my auto meter auto lite .

this week end at kennedale with high humidity , and only one bag of ice for the cool box i was pulling 8.0 with out nitrous ,and 77.3 with a 50 shot .

and henry your doing just fine on your boost .

[wesman]

Originally posted by ken cryder
wes you need a cool box .

with a #5 lower pulley i see 14.5 - 15 . on my auto meter auto lite .

this week end at kennedale with high humidity , and only one bag of ice for the cool box i was pulling 8.0 with out nitrous ,and 77.3 with a 50 shot .

and henry your doing just fine on your boost .

I have a powercooler...not hooked up yet though. i bought it used and am missing some pieces. I would like to check yours out sometime and see what it is I need and pick up those parts.

--wes

[Boosted32v]

Originally posted by microsuck
man! Bosted32v! I just noticed you have some pretty hot cars. You need to alternate them when you drive to the meetings so we can get to check them all out. how fast is that sprayed and blown cobra?
Andrew

Here is a Pic of the Cobra mill, I have gotten a 12.3@121 at Ennis with a strong 40mph northern gust in Oct.01, she likes to break them loose thru 2nd gear for about 10ft, my MPH dictates I should be in the mid to high 11's. I am currently rebuilding the stock block I got 137k miles out of it :eek2: I should be getting my long block 4.6 32v mill from Keith Craft in a few weeks, I will be looking for 10's :burnout: 'H'

[Boosted32v]

This is my daily driver, the wife daily drives the 'L

[microsuck]

I noticed you have the nos 5250 dry kit installed. how is that working for you? does it manage the fuel sustem okay? I bought that kit but converted it to wet before i used it. Impressive setup. Thanks for the pics.
Andrew

[Boosted32v]

If you notice I also have a Cartech FMU and a 255lph fuel pump so fuel has not been an issue, tho I am running out of injector at about 6k to 7.2k when I shift. So plans are to upgrade the injectors to 36's...'H'

[microsuck]

very cool. grab some 42# injectors!! Yeah, that will fix her good!:tu:
Andrew