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Thread: Out of Hibernation
12-30-2018, 02:12 PM #1
Out of Hibernation
So not to sure where to start..
As the post subject eludes to, the car and myself have been out of the modular picture for some time. I bought this car in 2004, and Daily drove it for 3.5 years up to 66k. Last iteration of the build(2008) was a 5.0 stroker with a 3.4 whippled c4 setup that was a crank pulley slinging affair that pushed me to sell off all the blower parts and pursue a turbo build with a 8.50 cage. Then life happened and priorities were different and the work on the car was intermittent and slow. Progress in recent years has been a slow acceleration based on free time to an all out sprint starting last fall(17) with inevitable delays(8weeks on heads). I did everything myself on the car with the exception of a few things that I didn't have the tooling for, Garage built. Overall I am very please with how everything has turned out, and the car has exceeded every expectation to this point. Got it runing late June, took a brake due to Texas summer weather spent October working on a few bugs, and Manny @ HPP put a hell of a tune in the Holley, in November(Did in one day what would have taken me a week or more lol). 20 Passes under my belt and some trial and error mixed in. The car has been 145.63 mph in the 1/8th with more power on tap, knocking on the door of 1.1x 60's. I have to apologize up front as I don't plan on sharing ETs. (N/T Grudge car at the moment). Still working through some quirks but everything is moving in the right direction quickly.
A brief rundown.
The goal was to chase a local limited tire class that evolved well out of my budget while the car was down. Now its a grudge setup, Looking to dial it in and see where it lands and go from there.
03 Cobra Chassis with Wolfe 8.50 Kit.
8.8 Rear Braced with 35 spline Moser axles
HPP Racing 5.0 Teksid Stroker with Ported heads.(Carry over from the Blower setup)Heads were refreshed 2018 with +1m Manley valves and PAC springs, Turbo cams
Precision Billet wheel GT47 88mm 1.08AR(2013 vintage) with Air to Air Intercooler.
M&M TH400 with 1/2 leave option, Pro Torque Gen X Bolt together , PST Carbon fiber Drive shaft
Holley Dominator running OEM Cobra coils, Billet Atomizer 225b injectors on E-85
Blower Car- Photo quality dates the photos lol.
Begin the gutting, Removed every hose, brake line, wire and bracket from the car. Also scraped all the sound deadening off the floors.
Shaved and filled the Firewall and strut towers.
Had to modify the AJE K-member and solid motor mounts to clear forward facing turbo headers. Original class rules required motor mounts.
Finalized engine bay with out the power train.
8.50 Cage work-
I cut the structure off an old cracked up hood I had in the pursuit of making it pin on.
8.8- Had it braced and 9" Ends put on it. Strange Dual caliper brakes, Moser axles and spool, FRPP 4.10s and a Mark Williams billet yolk.
After messing with Team Z Drag springs and not liking the stance or ride height I bit the bullet and went coil over with some custom valved Small Tire Menscer Shocks and added some Racecraft Drop spindles.
Turbo Kit- Put a good amount of thought into being able to pull the motor without disassembling the turbo system extensively.
Trans setup- M&M TH400 1.40/2.10 gearset, Friner 1/2 leave valvebody. ProTorque GenX. PST carbon fiber shaft.
Part of the whole process was reading and learning about weak links, so I also addressed the motor with the expectations of if seeing over 8krpm. Cobra Engineering Tensioner, and guide pins, Shelby Mike Chain Guides & oil pump o-ring. Primary Tensioner mod, upgraded valve springs from comp to MHS Stg 4 Pac springs. Accufab secondary chains and GT followers.
Through this process I found the Exhaust valves and seats were not happy, So in turn, I had the seats replaced and added the Manley +1mm valves.
Degreeing the motor in the 100* Texas heat was an experience.
Wired the Whole car from scratch with a Spaghetti Menders Kit, and un-terminated Holley Harnesses.Engine harness is on a mil-spec connector to ease in and out.
Home stretch, Final touches, upgrades, coatings ect.
Car build #3
No name for the car but, the stripper was tossed around since I was throwing money at it..lol
Car build #3
Car build #3
A video or two or 3.
Idle walk around
Walk around at idle
Less than perfect hit.
12-31-2018, 01:27 AM #2
Lots of work, Mike!
Very nice job, excellent fabricating skills. You have built a great hot rod and like most of the guys who do, you did it yourself — very impressive.
I noticed your external wet-sump pump. That is a personal favorite of mine. Gear style oil pumps like the one you are using have very wide operating rpm ranges and basically do not lay down at high rpm — which is why racers like them. Following up on our discussions earlier my bet is you are pumping the pan dry.
Check your pickup to pan clearance and make sure it is in the 0.312" to 0.375" window. Your high engine speed pressure fluctuations are almost certainly the oil pan being pumped dry and the OEM oil returns not being able to return the oil fast enough to the pan. There is also an aeration problem you want to be sensitive to that leaves air bubbles in the oil and provides poor lubrication along with potential pressure fluctuations depending on the level of aeration present at the pickup.
The easiest fix for the poor oil return problem is run an additional quart (not more than 2) in your pan and you should eliminate the pumping the pan dry issue.
12-31-2018, 08:12 AM #3
Still running the internal pump, that’s the fuel pump cable mandrel for the mechanical pump. Going to look at some volume additions inline and go from there. The events were rather recent so there may be a correlation with G forces and to your point drain back/supply.
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12-31-2018, 08:16 PM #4
That is an incredible build, nice work man! Such attention to detail.
I don't know how much boost you're running, but I saw big gains going to IGN1A past 30lbs. I had to drop the plug gaps down so much to get them to fire off with stock coils, now I can run .018 at 35lbs no problem. I don't know your oil pressure issue, but I had some fluctuation also that was solved by simply adding more oil. Best of luck!
12-31-2018, 08:50 PM #5
Ign1as are on the docket at some point. The stock coils haven’t given me a reason to doubt them at this point even with 66k miles on them. lol. I’m at .016 gap and 1.5ms dwell. It’s been 36psi without issue thus far.
Oiling is something recently and seems that your solution may be mine. 2+gs before 60’ can create some new havoc for sure.
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01-02-2019, 09:07 AM #6
Awesome build, thanks for sharing! I love looking at pics of quality work.
01-02-2019, 03:28 PM #7
01-02-2019, 11:39 PM #8
Great build. Alot of nice parts and fab work done there. Who's cable did you use to run your fuel pump?
01-03-2019, 01:47 AM #9
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