Author Topic: nocooler's firechicken thread  (Read 34734 times)

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Online nocooler

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nocooler's firechicken thread
« on: October 03 2014, 09:55:23 PM »
Forum's slow so I figured I'd talk about my firechicken.

I've been fighting to get this car to hook for sometime. It'd go 1.5's but not consistently and it should go easy 1.4's. I thought it was due to the mass of the new twin disc, then wondered if the slicks were toast, then started thinking about the rear shocks.

So today I tore the drivers shock out - it's a QA1 Gen F 24 way double adjustable. Both compression and rebound adjusted fine. Put it back on and checked the suspension how much drop I had and found this


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Re: nocooler's firechicken thread
« Reply #1 on: October 03 2014, 09:58:15 PM »
I guess I should explain - it's got 1.25" of extension - not nearly enough for a stick shift car.

Damn thing has been topping out the shocks and unloading - or at least that's what I'm hoping.

Did get a good pass in last week. Faceplated T56 ftw!


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Re: nocooler's firechicken thread
« Reply #2 on: October 03 2014, 10:00:28 PM »
Here is what a McLeod RXT twin disc clutch looks like - and a QTP bellhousing to save my feet
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Re: nocooler's firechicken thread
« Reply #3 on: October 04 2014, 10:29:33 AM »
Nailed him on the tree...nice work! Care to let us in on the complete engine build?
109 235 Cubic Inch Stock Stroke Balanced Rotating Assembly
Stock Crank
TRW .030 Pistons
Stock Rods
Stock Timing Chain/Gears
212/212 Flat Tappet Cam
JB Racing Heads
Stock Rockers
5.7 TT Race Chip
Built 2004R
AC 16930
6262 JB

6.72 at 104.67-25 PSI

Online nocooler

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Re: nocooler's firechicken thread
« Reply #4 on: October 04 2014, 10:53:43 AM »
It's a pretty simple setup


Stock bottom end LS1
Patriot CNC'd LS6 heads with dual springs
231/237 .589./595 112 LSA cam
Fast 78mm intake/Throttle body
36lb GM ASA injectors
Lid/Fasttoys Ramair
Ebay headers, ypipe
Magnaflow catback with cutout
Nitrous Outlet plate - usually hit it with 100 or 150 - not spraying in the video.



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Re: nocooler's firechicken thread
« Reply #5 on: October 04 2014, 10:57:16 AM »
Aftermarket fuel management system?
109 235 Cubic Inch Stock Stroke Balanced Rotating Assembly
Stock Crank
TRW .030 Pistons
Stock Rods
Stock Timing Chain/Gears
212/212 Flat Tappet Cam
JB Racing Heads
Stock Rockers
5.7 TT Race Chip
Built 2004R
AC 16930
6262 JB

6.72 at 104.67-25 PSI

Online nocooler

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Re: nocooler's firechicken thread
« Reply #6 on: October 04 2014, 10:57:57 AM »
Stock PCM tuned by me with HPTuners  :rock:
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Re: nocooler's firechicken thread
« Reply #7 on: October 04 2014, 11:01:28 AM »
Stock PCM. I'm liking this. :)
109 235 Cubic Inch Stock Stroke Balanced Rotating Assembly
Stock Crank
TRW .030 Pistons
Stock Rods
Stock Timing Chain/Gears
212/212 Flat Tappet Cam
JB Racing Heads
Stock Rockers
5.7 TT Race Chip
Built 2004R
AC 16930
6262 JB

6.72 at 104.67-25 PSI

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Re: nocooler's firechicken thread
« Reply #8 on: October 04 2014, 11:06:30 AM »
Differential/driveshaft/transmission upgrades?
109 235 Cubic Inch Stock Stroke Balanced Rotating Assembly
Stock Crank
TRW .030 Pistons
Stock Rods
Stock Timing Chain/Gears
212/212 Flat Tappet Cam
JB Racing Heads
Stock Rockers
5.7 TT Race Chip
Built 2004R
AC 16930
6262 JB

6.72 at 104.67-25 PSI

Offline Steve Wood

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Re: nocooler's firechicken thread
« Reply #9 on: October 04 2014, 11:16:47 AM »
I always admire that brings a stick to an auto fight!  Car runs really well :cheers:

Brad, you ought build one of these....be like a bike with 4 wheels :)  You can shortcut the process because he has learned a lot as to what works and what does not.

He has been playing with this one for a few years now.  He got sidetracked for awhile recovering from his accident but he seems to be going full bore now.  I really like the car.
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http://www.vortexbuicks-etc.com

A lot of broken parts does not make you a racer; it makes you a slow learner.

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Re: nocooler's firechicken thread
« Reply #10 on: October 04 2014, 11:23:15 AM »
I always admire that brings a stick to an auto fight!  Car runs really well :cheers:

Brad, you ought build one of these....be like a bike with 4 wheels :)  You can shortcut the process because he has learned a lot as to what works and what does not.

He has been playing with this one for a few years now.  He got sidetracked for awhile recovering from his accident but he seems to be going full bore now.  I really like the car.

I have my R1 and my 85 IROC up for sale. I bookmarked HPTuners...
109 235 Cubic Inch Stock Stroke Balanced Rotating Assembly
Stock Crank
TRW .030 Pistons
Stock Rods
Stock Timing Chain/Gears
212/212 Flat Tappet Cam
JB Racing Heads
Stock Rockers
5.7 TT Race Chip
Built 2004R
AC 16930
6262 JB

6.72 at 104.67-25 PSI

Offline Steve Wood

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Re: nocooler's firechicken thread
« Reply #11 on: October 04 2014, 11:32:35 AM »
Jeremy, what have you done to make the tranny survive?  Does not sound like you are taking it easy on the shifts.  I always had a bad habit of not letting off the gas and not using the clutch very much...some of these new trannies don't hold up to what I would consider normal racing...
Steve Wood

http://www.vortexbuicks-etc.com

A lot of broken parts does not make you a racer; it makes you a slow learner.

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Re: nocooler's firechicken thread
« Reply #12 on: October 04 2014, 11:34:30 AM »
I always admire that brings a stick to an auto fight!  Car runs really well :cheers:

Brad, you ought build one of these....be like a bike with 4 wheels :)  You can shortcut the process because he has learned a lot as to what works and what does not.

He has been playing with this one for a few years now.  He got sidetracked for awhile recovering from his accident but he seems to be going full bore now.  I really like the car.

I don't know anything about it, but, several of my friends down in Houston use it and like it.

I have my R1 and my 85 IROC up for sale. I bookmarked HPTuners...
Steve Wood

http://www.vortexbuicks-etc.com

A lot of broken parts does not make you a racer; it makes you a slow learner.

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Re: nocooler's firechicken thread
« Reply #13 on: October 04 2014, 11:46:12 AM »
120 mph...it comes on on top end! 100 hp shot must turn it into a beast
Steve Wood

http://www.vortexbuicks-etc.com

A lot of broken parts does not make you a racer; it makes you a slow learner.

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Re: nocooler's firechicken thread
« Reply #14 on: October 04 2014, 12:52:05 PM »
Trans was built buy liberty gears here in MI. It's faceplated and has a viper mainshaft. All parts were heat treated and shot peened.


With it being faceplated the box is un-synchronized 1st thru 4th. It still needs you to clutch it but only enough to get it out of gear and then you slam it into the the next @ WOT. It's clunky and loud around town, but with some double clutching and practice most people wouldn't even notice.


The rear is a Midwest Chassis (MWC) fab 9" w/4.56 gears and a tru-trac diff, 31 spline axles. ABS still functions. It's got MWC's short torque arm, spoon's antiroll bar, umi lower control arms, and a 3.5" PST Aluminum driveshaft.


QA1 single adjustable coil overs out front and double adjustable out back.


100 shot it's been 130mph - 150shot, 132mph. Best et with the T56 is like a 10.6@131.


I've been fighting a traction issue this year with the new twin disc clutch. It hits the tires harder do to more mass and it's instant burnout if I go WOT on the 2-step and dump the clutch. I've tried everything shock settings, suspension mount points and tire pressure. I even put the 4.56 gears back in the thing from the 4.11's.


I think I found the issue - being the shocks don't have enough travel on extension.
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