ShawnSmith

Hey - we all love these wonderful old German V8's, and this board/community is both amazingly knowledgeable and helpful to fellow enthusiasts.

Let's not let it get grumpy?

GregBBRD

dr bob

Certainly, although you are far more eloquent than I.

dr bob

Thanks!

blown 87

Not going to find folks more skilled than those guys.

IcemanG17

Rob
You are a LUCKY man to get a Doc Brown stroker!! Your gonna have some serious fun

Rob Edwards

I am indeed a lucky man - Remember, part of my gig is doing autopsies, so it's easy for me to keep the perspective that no matter how ****ty my day has been, it's going better than my patients' day is going.

Jen bought me a gift certificate for a Skip Barber HPDE class at Laguna Seca for Christmas- I think she's (not so?) subtly suggesting that my driving skills are going to be in need of a significant upgrade.

Greg's master parts list does not include minimum rear tire specs, I think we're going to need to add that.....

ShawnSmith

My still-in-breakin-tune 6.5L from Greg is sufficient to obliterate 295-size rears in 1st gear for as long as I'm willing to keep the pedal on the floor. I'm hopeful an LSD upgrade will ease that problem, but then again we're also gonna tune more HP into the motor.

It's an amusing arms race between opposite ends of my car

FYI I have a set of 245 rears on 16 inch flats, and those are _really_ worthless against the new motor's torque. I suggest as much rubber as your wheel wells and wheel offset can support.

I note unusually good pricing on 295/30-18 Sumitomo HTRZ-IIIs in the $185/each ballpark. It's a decent tire at less than half the cost of most other choices in that size. I'm likely to go there next, since my existing Yokohama AD07's are no longer in production.

GregBBRD

BFG Drag Radials? Should go around corners, also.

Rob Edwards

So what you're saying is

1) My 255's on 17" Cup I's are not going to hold up against a 2.73:1 GT transaxle? Glad I flushed the PSD recently.

2) I should find a decent set of 18 x 11" somethings post-haste? I have never paid attention to the wheel offset threads, guess I better start paying attention.

BC

I would just go full boat and get CCW to make you some 12s for the rear and 10s for the front and be done with it.

dr bob

Rob, just put a raw egg inside of your right boot. The tires, clutch and gearbox will thank you.

90 S-4

Rob,
Welcome to the stroker club ! and you've got the best engine builder you could ask for. But we're not letting you off the hook that easy, what else is being done WYIT.. bigger valves ? bigger cams ? Intake manifold tweaking ? Blackbird ? exhaust etc,
I have an engine hoist if you need to barrow it & keep your 17" rims, have the rear rims widened and
use a drag radial that is at least a 275-40-17 in width.
And you might consider changing your ring & pinion to a 2.20 WYIT.. ask Greg.

GregBBRD

The current generation of drag radials might actually hook up with the short ring and pinion...might be worth a try, at least. If it just goes up in smoke....well....maybe it will get it back into the power range in 2nd gear with the short gears.

Good idea with the 275/40/17's and making the wheels wider. Nice stock look from the side. Jen will never suspect a thing!

Rob Edwards

Joe-

Thanks, I bought an engine hoist for the project, since I need it several times to R&R motors and move them in and out of my minivan.

EDIT: FWIW, you can put a complete S4 motor in a Honda Odyssey and get it back out again (Nice of Mark to give me a free pair of race tires to use as bumpers!)




Back on topic- yes to all of the above:

39 mm intake valves and seats
Lots of manifold tweaking
Porting, polishing, lightening and internal friction reduction
Bigger injectors and some fueling mods
Multiple oiling mods
A pair of JDSPorsche PEM's for easier ST'ing
DD clutch (have an '85/'86 flywheel but need to transfer the S4 ring over)
Motorsports X/cats/GT resonators/factory everything else (for now)
Two belly pans for easy smog visual checks.
Bigger cams

(The cams are special sauce- The stock GT cams got sent off to the East coast last week- I asked Greg about the spec, here's his e-mail reply, verbatim):

"The cams are going to have xxx lift and xxx duration. These are cut on xx lobe centers. The area "under the curve" is improved by xx percentage. "

I have seen and held a re-ground cam from his new cam guy- pure ****.


Bottom line, it'll be your standard CARB-compliant CA-emissions-meeting sleeper.

I think Jen suspects a whole lot of things but is willing to look the other way. Definitely a keeper.

ShawnSmith

...and here I thought I was the lunatic with my 6.5L carb-legal stock intake combo