Bryce,

what did you calculate the Min/Max CSA of the X-cellerator to be? I know it's smaller than a Victor but IIRC it's bigger than a torker or Torker 2. Also has less taper than an M1 or the old Strip Dominator.

What is your opinion on runner length and how it effects flow? Longer strokes tend to like shorter runners when the cross sections are relatively small for the displacement, at some point the total runeer length itself (plenum to Valve) becomes a flow restriction. That's in part why I think (theorize) that a ported Victor could be a HP advantage over a SV on a longer 4+" stroke motor is the CSA and min/max CSa's were identical. additional Runner length tends to be beneficial below peak torque, but beyond that point becomes a HP restriction.(as RPM increases the motor would like the runner to be shorter and shorter = CLOSER to the carb)

It there a formula for runner taper (Plenum CSA relative to Runner outlet CSA) that works best for mopar Wedges? runner length (and more appropriately -Total Runner Volume) also comes into play here as well in terms of inertia tuning but that's too much to go into here I think.

I placed an order for these heads the last week of november 2012. It is now the last week of january 2013. I called Dr. J's today 1/28/13 and a message comes on that says this number has been DISCONNECTED. Should l be worried. Has anyone else found the same.

Bryce sent mine within a week, but these were the 633 horse Dyno heads. Bryce ALWAYS has been straight-up to my knowledge

Not a user or buyer of the heads but anyone that does not run from criticism or customer concern (disconnected phone) deserves recognition.

Does anyone know what's happening with Bryce/Airwolf/Dr J's and the supply of these heads???

I've been trying to contact Bryce for several months and I'm not getting a regular response. I did talk to him once and he said the heads were in the CNC shop and were being sold as they were being produced and at that time I reconfirmed my order.

That was probably 2 months ago and I still don't get a return phone call or e-mail even though I've left at least 5 voice mails and sent 7 or 8 e-mails.

Any ideas???

I hate when you have to beg to buy a set of imported heads..

Everything's imported to me!

Certainly not what you would call customer service. These guys want to sell parts but don't want to talk to the customer, glad I deal with big blocks.

Yes, I'm surprised actually. Especially given the amount of effort that's gone into advertising them through this site and how good they are etc. I'm guessing its a pretty small shop and he's flat out, hence my question is it me or is no-one else getting a response?

MisterBee,
My timeline has went like this:
April 4th First inquiring e-mail, got a reply from Bryce in 12 hours.
April 16th e-mail, and phone call, no reply to either.
April 23 phone call no answer.
April 24th e-mail reply from Bryce in the AM, to e-mail I sent on 16th
April 24th reached Bryce by phone in the PM, hashed out the deal, set the price, and he promised to charge my card, and send an invoice via e-mail. Said he was "3 weeks out" on the heads.
May 16th reached Bryce by phone on my second attempt. He explained he was overwhelmed with demand, and explained he was still probably "2 weeks out". I explained that I hadn't been charged, or received an invoice, so I was worried that we didn't really have a deal. He promised to "take care of that this afternoon".
June 6th The charge for the purchase price appeared on my credit card statement.

I have not had any correspondence with Bryce since then, I have still not received an invoice, or the heads. I have 3 cars to work on, and I have yet to assemble the short block the heads are destined for, so I haven't made any efforts to contact him in the last month, figuring my time is better spent on the stuff that is in front of me.

So, yeah, it's not just you, if that helps!

i started on this adventure
May 8

was told also 3 weeks

have left many phone messages and e-mails

have NOT heard anything until

CC was charged last week.

and STILL,NO Response from Bryce

even trying the # he posted
(please call my cell 714-943-3404)

so,I tried once again to get info on shipping date
No luck

called again yesterday, left another message

hope all is good

Cause,I don't know how I'll ever,be able to get in touch with him,
IF there is a problem with the Heads.....

There you go Billy.... those W8 mills are still sitting. At least that way you'd have all the parts "in hand".

OK, thanks for that. Not sure what to do now. Keep trying to contact or just get some CNC ported Edelbrocks. I certainly liked the idea of these heads as they were a bit different but a still a bolt on proposition. Started getting excited and was thinking of building a nice sb with BPE 4.25 stroke and R3 block. Would be a killer combo I think.

I'd be worried my money's been taken with out any goods to show for it too!! Especially for me being from Australia.

Was really hoping Bryce would pipe in.

Please keep us in the loop if anything happens!

Shannon

Dang, just got the new mag with these heads featured in them. Bummer.

Gayle contacted him about our heads on his facebook page

This last Saturday HE CALLED me, said that a new shipment of casting has just arrived

I SHOULD see the heads this coming Monday the 29TH

They must be on a REALLY slow boat from China. They should get a ship with an American engine to ship them over.

Sounds promising!!!