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Question on spooling time

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Old Jan 21, 2008 | 03:58 PM
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Default Question on spooling time

I have a 348cu 88mm single tb Car has 400tb trans with trans brake and 2-step already install. Was wondering if anyone is using N2o at the line to help with spool times? Car made 800rwhp on 14lbs was just trying to get my spool times quicker at the track with maybe a 150 shot on a manual botton just for spooling purposes. What does anyone think? Oh I already have the N2o system TNT F2 just begging to be used for something. Thanks
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Old Jan 21, 2008 | 07:10 PM
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800rwhp.....and thats not good enough.......haha

sounds like you dont need too much help if you are that far.....

how low is your c/r....i was thinking about the same.....my car will prob be a dog untill it hits boost and i dont want to do the methonal inj.

i would like to see some more posts on this as well

any pics taillights????
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Old Jan 21, 2008 | 07:16 PM
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What size converter do you have? Any dyno sheets? I'd think with the T-brake and the right converter you wouldn't need the nitrous...
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Old Jan 21, 2008 | 07:36 PM
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Originally Posted by red1999z28
What size converter do you have? Any dyno sheets? I'd think with the T-brake and the right converter you wouldn't need the nitrous...
I'm thinking the same. With a 2 step and t brake you should be able to hit pretty good boost right there.
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Old Jan 21, 2008 | 07:45 PM
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I have a neal chance converter built for my car. Still seems a little slow to build boost at the line for some crazy reason. On the street when I'm just under the stall and hit it It seems to hit almost instantly. Oh the stall is around 3600 or so.
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Old Jan 21, 2008 | 07:49 PM
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you could try a three step! works pretty good ! Gets the boost on the way when your on the footbrake bumping into the line. then it will hit a higher rev limiter when you set yourself on the transbrake. What takes the most time usually is just getting to the first couple lbs of boost.
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Old Jan 21, 2008 | 07:57 PM
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Originally Posted by 88GT&69ss
you could try a three step! works pretty good ! Gets the boost on the way when your on the footbrake bumping into the line. then it will hit a higher rev limiter when you set yourself on the transbrake. What takes the most time usually is just getting to the first couple lbs of boost.
That's what it seems like as soon as it hits any boost it just shoots right to my setting.
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Old Jan 21, 2008 | 08:01 PM
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yeah you can use a 3 step ...and get the boost moving that direction on the footbrake ..
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Old Jan 21, 2008 | 08:02 PM
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just make sure you have a great trans cooler.
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Old Jan 21, 2008 | 08:03 PM
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Dyno sheet
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Old Jan 21, 2008 | 08:06 PM
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88mm truck manifold set-up There are some pics on here just search what it says here and scroll down until you see the pics.
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Old Jan 21, 2008 | 08:08 PM
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Originally Posted by jessedale98
Dyno sheet
i have some in my shop I will try to post some another day.
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Old Jan 21, 2008 | 08:10 PM
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Originally Posted by 88GT&69ss
just make sure you have a great trans cooler.
trans always seems to be fine on temps according to the guage. big cooler up front.
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Old Jan 21, 2008 | 09:11 PM
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a 3 step with a foot brake limit set to 3k then set the trans brake to 35ish right before stall. have it poping of the limiter threw both lights. i also use a boost controller set at 15 psi on foot brake and 7-10 on transbrake and on the foot brake i get about 12-14 psi in 1-2 secs. works killer and a 1.22 sixty with a Turbo 6
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Old Jan 22, 2008 | 08:03 AM
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Originally Posted by BoostnTBSS
a 3 step with a foot brake limit set to 3k then set the trans brake to 35ish right before stall. have it poping of the limiter threw both lights. i also use a boost controller set at 15 psi on foot brake and 7-10 on transbrake and on the foot brake i get about 12-14 psi in 1-2 secs. works killer and a 1.22 sixty with a Turbo 6
Thanks iwill just have to test somemore at the track or a spot in town with 2-step and T-brake to try just for spool time. Thanks again
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Old Jan 22, 2008 | 03:57 PM
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How long does it take to spool your setup, and what compression and cam?

Mine was bad initially (8:1 348ci + GT47-88 T6 flange) but it's better with the new PTC converter and using the BS3 2 step.
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Old Jan 22, 2008 | 06:51 PM
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Originally Posted by Pro Stock John
How long does it take to spool your setup, and what compression and cam?

Mine was bad initially (8:1 348ci + GT47-88 T6 flange) but it's better with the new PTC converter and using the BS3 2 step.
Comp. ratio 8.75to1 cam specs 234/238 lift 598/605 ls115. Have new nc converter. Probably just need to play with the 2-step and trans-brake settings and see what works best. My conv will stall around 3600 to 3800 what do you think is a good place to start with 2-step currantly tried it on 4000 but I only had my boost set at 10 and thats as high as it was going on the launch. What are some of your opinions.
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Old Jan 22, 2008 | 08:21 PM
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when does your convertor stall 3600-3800,under boost or not?
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Old Jan 25, 2008 | 01:02 PM
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Default dyno chart on 12lbs

Originally Posted by jessedale98
Dyno sheet
sorry about no torque but for some reason the dyno wasn't showing it that day. didn't care that day was just using it to work on the AFR at different RPMs.
Attached Thumbnails Question on spooling time-car-parts.jpg   Question on spooling time-car-parts-003.jpg  
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