stroker or blower? which is worth the money?

No..... 12.4 is with the blower at 500ft and with 6psi (not getting full thottle. That's why I said I've yet to get a good pass out of it here. 13.8 was Natural (no blower @5000). To compair. the car went 12.7 in BG 2 years ago... same setup. That's 1.1 second just lowering the altitude.... For another comparision the car with the blower losing a head gasket at 1100ft mark or so in Vegas (2200ft) went 11.7ish coasting through.

I'm running a Halo girdle on the bottom end..... the big tread explains it.

 

Blower hats

Rich, isn't this the new style blower hat you went too?
http://www.superiorairflow.com/extreme_velocity.htm

 

Re: Blower hats

Yep it is... I tried the plastic one... it worked so good I upgraded to the polished O-ringed hat. I wouldn't leave home without it! It has allowed me to stabilize the AFR accross the board. Couldn't do it with the ATI hat.

 

Hey Rick,

1.6 ratio rockers.

No, I am not at all worried about 700 HP on the street, with a filled, girdled block and billet rods..

Actually the 4.5" pulley was too small.. it would have made around 9 psi on the first pull, if we had let it get all the way up in rpm.. when it was making 745 ft/bs of torque at 4600, and it had not reached the peak yet, we pulled out of that first pull.. we had to create a few "bleeds" in the system to get 6 psi.. mathematically, it would have made around 840 HP if we had let it go, and that's more than I am comfortable with on the 2" SBC rod journal of a 494.. I tweeked a crank once at 765 HP, naturally aspirated in a 494 race motor, and the customer needed to take a running engine home, not a box of parts..

The customer happened to get the 494 parts, along with 1 of the only 2 sets of blower pistons that TA has ever done, when he purchased a car, so that is how that deal came about.

For max effort, I would thing a 464 with a billet crank, filled, girdled block, and billet rods would survive to around the 900 HP level, comfortably.

As far as the boost deal with the big motor, I am quite sure that the extreme Velocity hat that Rich turned us onto made a big difference. WE could not even use the hat that came with the kit, since it interfered with a fitting on top of the special blow thru 950 HP that we got from The Carb Shop in Ventura California.. and that was a very nice piece, worth every penny of the $980 it cost.. good cruise A/F ratio's, as well as at WOT. All we had to do was go up 1 jet size all around, for a nice safe tune up. No fuss, muss, or fooling around.

Yes, that motor made a believer out of me, in a couple of different ways..

First off, it is possible to build a big cube, NA street motor, run low compression with all the goodies, and make very respectable power, on regular unleaded fuel. 546 torque, and 540 HP is nothing to sneeze at with the same fuel your lawnmower uses. And I am quite sure with the right carb/spacer combo, I could have gotten 550 numbers on both the torque and HP out of that motor.

And the Pro-Charger is just plain awesome!.. Ron, my dyno operator says it best... When asked how much HP you can make with a pro-charger, his answer is "AS much as you want"..

Mike Tweedy at XS was great to work with on the kit, and I will be certainly spec'ing out a bullet proof 464 street combo to add to my engine lineup here in the near future.

And with a good race engine block, mega HP race cars with nothing more than a cowl type hood scoop are in the future..


And the next project is just the "right" phone call away.. we have some pretty going info and experience with the deal now.

JW

 

I understand how it goes when you have a customers motor, its business and you can't be taring stuff apart trying to make a living. I'm sure my buddy Cory will enjoying reading this on how you tweaked a 494 at 765HP. He's already sweating the 2" journals. :laugh:
I'm glad to hear you liked the blower setup. I would like to go to a F-2 Blower when/if the new block comes out. I'm sticking with nitrous since it doesn't take any power to make power.

Hopefully that 464 buildup will happen pretty soon. I'm still in the market for a billet 455 crank and it would be nice if I could get one on order before I got back. I would prefer a true billet crank with drilled journals and knifed-lightweight counter balances. I know they build them on a minumum order so I'm in when your ready. Just say "when".:TU:

 

Re: On a good note.....

A Tremic 5 or 6 speed OD standard would hold up nicely, and cruise at 80 MPH at 2250 RPM or so. It is nice to cruise with the motor hardly working, and it saves engine life. Chrysler is using them in the Viper and Ford in the Cobra. Both are pounding the Tremic with 600 RWHP aplications and holding up nicely with minimal modifications (Liberty 26 spline input shaft)!

Cheryl