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Awesome car. I have to thank you.I thought I was a bit too obsessed with my camaro but after reading your build I feel like I have a perfectly normal,healthy hobby now by comparison!Great work! I enjoyed reading about the journey!
I started into your post because I'm considering building a stroker for my Silverado 1500HD, but building it for bottom end torque. I'm not really interested in any thing past 3000rpm and more interested in 1000-2000... pulling 17000 lbs.
Here's where I'd like to be:
Requirements
Premium Premium
Brake Horsepower @
RPM 325/4400 340/4400
Maximum Torque @
RPM 445/2800 465/2800
These are 1966 "Nailhead" Buick 401 and 425 numbers. What surprises me about the nailhead is that it is an "oversquare" engine.
1105 rwhp / 902 rwtq was final made on the setup as originally described, with MS109 fuel, 50/50 meth/water, 22 psi and I think 17 degrees of timing. Probably a dozen dyno runs at 3 different dynos had it making right in the 995 rwhp range, give or take a few hp, it was frustrating, but definitely consistent, and what held it back was the original RPM limiter and then wheel spin. I recall moving the rev limit up 150 or 200 rpm, and then it was wheel spin. We cranked down on the rear straps a ton, I sat in the trunk, and then bang, we hit that 1105 number and the serpentine belt flew off and I said, "I'm done with this sh*t!!" Yeah, it was turning into work and when it gets that bad, you know you have to change things up in your life. Regardless, I had no intention of selling the car, and my friend Adam Pettis at Innovative Street Technologies had just started his shop, so I kinda felt it was still good timing to finish things off on the car before he got bigger with more customers and less time, which is kinda how it has actually worked out for him.
That was about 3 years ago. Here's what changes have happened to the car since the original post:
Before last dyno:
Custom intercooler piping with flanges and a Vibrant connector welded in the UIC pipes
KGS 60mm BOV replaced TiAl
Externally the car was wrapped and a hinged hood replaced the pin on.
After last dyno:
E38 ECU fried.
Holley Dominator ECU.
Holley meth system with 2 injectors
Holley low impedance 168 lbs injectors installed as well as injector driver
Holley/MercuryMarine IGN-1A coils.
Welded and flanged (upper) intercooler piping.
JGS bov replaced Tial.
TH400 swapped in.
Gear Vendors overdrive.
Aluminum driveshaft.
Battery moved to right side of trunk.
OEM fuel tank removed.
10 gallon fuel cell installed in trunk.
External fuel pumps added (Fuelab 42402 and a Bosch 044).
All fuel lines changed over to PTFE lined.
Mishimoto full aluminum radiator.
Earls coolers for both transmission and fuel.
Holley/Mercury Marine IGN-1A coils. Fuel mods. Removal of fuel cell foam, regular maintenace of the fuel pre-filters, adding a fuel cooler, and adding PWM control to the small pump, now an actual Bosch 044 (not pictured), has helped pump life immensely. Typical Hurst shifter for the TH400, switch panel added to console, and Holley dash mounted to steering column with a 3D printed mount. Stage 4 FTI TH400 in a Reid case.
11-11-2015, 11:04 AM
Great build!!! 
