538 RWHP - 150 Shot, Cam, Fast 90/90, TH400/9"
07-17-2013, 12:28 AM
#1
538 RWHP - 150 Shot, Cam, Fast 90/90, TH400/9" Let me first give thanks to Brian Tooley for the cam, Jeremy Formato with Fasterproms for the tuning, and Fat Body Performance for making all the magic happen. I've been beating on this old stock LS1 since 2005. I've put tons of bottles through this car to see how far I could push it. I was able to make a best pass of 10.74 @ 123 mph, 1.42 60' (6.78 @ 99 mph). I figured I accomplished my goal with the motor stock and it was about time to add some power to her.
This was my starting point:
Lid
QTP 1 3/4 Headers
3" exhaust x-pipe dynomax bullet mufflers dumped
Tune
NX 150 shot - wet - shark nozzle
FTI TH400/Converter
Moser 9" Narrowed 3" each side (5.5 bs rims
)
28" Radials
No Surprise. TH400/Big Converter/9" eats up some power. What you'd expect from a stock LS1 with a couple bolt-ons and some giggle juice.
New Setup:
Brian Tooley Racing Cam (235/242 .620/.594 111 LSA)
BTR .660 lift valve springs w/ titanium retainers
Chromoly pushrods
Comp Cams Rocker Arm Trunnion kit
FAST 90/90
85 mm MAF
98 mm Lid
42 lb injectors
u/d pulley
Racetronix fuel pump kit
LS6 oil pump
single roller timing chain
Nitrous Outlet 2 stage 90 mm plate
Lingenfelter 2 step
100 shot, then 2 at 150. Retarded 4 degrees with Lingenfelter 2 step for 150 shot.
The 420 pull was with 28* timing, then we backed it down to 26.5*
Here's the video:
This was my starting point:
Lid
QTP 1 3/4 Headers
3" exhaust x-pipe dynomax bullet mufflers dumped
Tune
NX 150 shot - wet - shark nozzle
FTI TH400/Converter
Moser 9" Narrowed 3" each side (5.5 bs rims
)28" Radials
No Surprise. TH400/Big Converter/9" eats up some power. What you'd expect from a stock LS1 with a couple bolt-ons and some giggle juice.
New Setup:
Brian Tooley Racing Cam (235/242 .620/.594 111 LSA)
BTR .660 lift valve springs w/ titanium retainers
Chromoly pushrods
Comp Cams Rocker Arm Trunnion kit
FAST 90/90
85 mm MAF
98 mm Lid
42 lb injectors
u/d pulley
Racetronix fuel pump kit
LS6 oil pump
single roller timing chain
Nitrous Outlet 2 stage 90 mm plate
Lingenfelter 2 step
100 shot, then 2 at 150. Retarded 4 degrees with Lingenfelter 2 step for 150 shot.
The 420 pull was with 28* timing, then we backed it down to 26.5*
Here's the video:
07-17-2013, 12:20 PM
#5
I just added a lnc200 to mine and need to get it set up to pull timing instead of being pulled all the time for the n20. Also get a tune while its there. Whats a ballpark that he charges Im in Clearwater so its not to far.
07-17-2013, 10:12 PM
#7
My first thought would be a faulty design in the nitrous plate
To be honest, I'm not really sure why there's the hit, dip, then goes back up. I was thinking at first it might be a little tire spin (I know it spun a little on one of the pull). It's consistent each time... hiccup in the dyno reading?? Could be. You can see on one of the motor pulls where the dyno skips a little and has a torque spike. I don't recall hearing anything funky then or when I watched the video. It looks a little funny, but nothing that makes me have a 'concern'. In the past, I've had dynos do a complete loopty loop on me.
To be honest, I'm not really sure why there's the hit, dip, then goes back up. I was thinking at first it might be a little tire spin (I know it spun a little on one of the pull). It's consistent each time... hiccup in the dyno reading?? Could be. You can see on one of the motor pulls where the dyno skips a little and has a torque spike. I don't recall hearing anything funky then or when I watched the video. It looks a little funny, but nothing that makes me have a 'concern'. In the past, I've had dynos do a complete loopty loop on me.
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07-17-2013, 10:17 PM
#9
Thanks. Total timing would be 26.5* - 4* pulled with LNC2000 for a total of 22.5*. With this cam and my free flowing exhaust... we could have hit her with more timing i'm sure. 24* with no issues. We were not seeing knock and then pulled timing... just stayed conservative.
07-19-2013, 07:59 PM
#10
the crazy swings in the nitrous graph is most likely the converter causing crazy reading on the dyno. My old combo did the same thing. You should use mph instead of rpm to view the curve. It will smooth out the graph and you can calculate the rpm from the mph on the dyno.
lol
07-25-2013, 01:38 AM
#12
the crazy swings in the nitrous graph is most likely the converter causing crazy reading on the dyno. My old combo did the same thing. You should use mph instead of rpm to view the curve. It will smooth out the graph and you can calculate the rpm from the mph on the dyno.
03-11-2018, 10:30 AM
#15
TECH Senior Member
Dude, you're not texting to your buddies. Use whole words.
