another turbo slant build thread
After this winter and getting my 83 mustang with a 350hp 302 done I will be selling it to fund this build.. with an over all goal of 10 seconds in the 1/4 in mind as well as being a street car and NHRA legal
turbo plans:
225 rebuilt STD bore(stock rotating assembly)
deck(s) shaved at a minimum for flat surface
head/main studs
moly rings gaped for boost(LOTS)
Comp turbo hyd. flat tap. cam(a mild cam but better than stock to support 5500 rpms)
Comp valve springs, retainer, keepers/ pushrods
new timing chain (is there a double roller set made for a slant?)
rebuilt 70 head with bowl work
80's vintage non adjustable rockers
offenhouser 4bbl intake
1" phenolic carb spacer
Holley 650 blowthru carb
Spectre carb hat
some sort of aftermarket fuel pump
FPR with boost reference
cast iron OR mild steel custom? manifold(youtube link)
Holset HX35 turbo
3" intercooler piping and intercooler
3" custom down pipe
3" summit exhaust (only using driverside of the kit they have)
let me know what you think? Advice is more than welcome, as well as parts suggestions... will be my first turbo build, no stranger to building motors (built my mustangs 350+hp 302)
You, sir, have come to the right place.... :)
Your plan is an excellent one, and there are several turbo slant 6 turbo owners here on FABO that can help you build an exciting, satisfying car, using most of the ideas you have described.
One such car is a '66 Valiant owned by Ryan Peterson, that is shown in this video: [ame="http://www.youtube.com/watch?v=7QzUfV8iTpQ"]Turbo Slant Six 10.74 @ 127 mph 7-19-10 - YouTube[/ame]
It goes 127 mph in 10.74 seconds with 1 4bbl and a 727 transmission.
Here's another FABO member's turbocharged slant 6 '70 Dart (somewhat heavier than the Valiant shown in the previous video,) going 11.02 at a little over 120mph into a 15-mile-per-hour headwind...
[ame="http://www.youtube.com/watch?v=EAxRmoDgsdY"]Turbo charged Slant 6 11.02 @ 120.56 - YouTube[/ame]
Both of those cars make around 500 flywheel horsepower.
Neither of them employ stroker cranks, roller cams, fuel injection or fuel other than gasoline. The Dart has a 904 T-Flite.
They are my heroes.... :cheers:
I and my partner, are building a copy-cat car, (1964 Valiant 4-door sedan) which we hope will run at least, within a second of these two killers... Talk's cheap... we'll see.:prayer:
You asked for advice, but before we can help you very much, we need to know what your goals are for this build, and just how important ultimate performance is to you, because that will determine what kind of advice will be appropriate for your particular situation.
Our '64 car will see very little street use, and will mainly be a play-toy for test and tune day at the local strip. That fact alone dictated a few of our build options. Yours will be affected in the same way.
Regardless of how you want to proceed with this build, I would, however, say this: I am not going to insult your obviously considerable intelligence (demonstrated by your choice of powerplants) by telling you something you already know (i.e. weight/horsepower= performance) but seeing as how you're starting out with NEARLY a clean sheet of paper here, there is this to think about:
Shipping weight on a '71 Demon /6 is 2,845 pounds. I offer this only for comparison purposes; actual weight in most cases will be a couple of hundred pounds more.
Shipping weight on a 1962 Plymouth Valiant /6 2-door sedan is 2,480 pounds.
Shipping weight on a 1964 Plymouth Valiant /6, 2-door sedan is 2,540 pounds.
Shipping weight on a 1963 Dart /6, 2-door sedan /6 is 2,614 pounds.
Going by the old adage that 100 pounds equals a car-length, a 1962 Valiant would beat an
identically-powered 1971 Demon a little over 3 and a half carlengths in the quarter mile.
That's a train-length...
Other, lighter cars, would benefit somewhat less, but you can figure that out... It all a matter of degree...
Whether it's worth it to you to give up that considerable amount of performance to keep the Demon, and not replace it with a lighter A-Body chassis is strictly up to you. If you like a car, that can be worth a lot...:cheers:
If you could post your plans for this new project, I am sure there will be a LOT of ideas and helpful information available to you.
Please get back to us with some information as to what you really want, and plan to do with this car, whether it's a street-only car, a strip-only car, a daily driver, a trip car, or whatever.
I'm really excited about it,
no matter what your intended use you have planned for it. Thanks for sharing.
This is our '64's motor, so far...
