Well this is now in the works thanks to the current 6.1 taking a **** tonight. The vehicle already has the ASM setup and now we get to turn the boost up and feed a mighty 426. Heres where i need your help. This just happened today and have already talked to both jeremy at PPP and Bruce at HHP. I am looking to who has used each to voice their opinions. I am leaning one way but i will keep this unbiased on my opinions.

So what happened.. well my customer (BJB on this site) entered the onramp and when the vehicle shifted at about 3/4 throttle (he says.. i know it was full throttle ha) and after a slight hesitation the vehicle had a decently loud knock and instantly shut down and coasted to a stop. It turns over and starts (sounds like on 1 cylinder) and yep the knock is there. Sounds like on the drivers side but i will be tearing into it to see what happened with pics. So for now another dead 6.1 till its new life as a 7.0. Looking forwards to the 10's... or maybe 9's if all goes well...:D

Also the poll should say which builder but i can't edit that.. thanks

Well this is now in the works thanks to the current 6.1 taking a **** tonight. The vehicle already has the ASM setup and now we get to turn the boost up and feed a mighty 426. Heres where i need your help. This just happened today and have already talked to both jeremy at PPP and Bruce at HHP. I am looking to who has used each to voice their opinions. I am leaning one way but i will keep this unbiased on my opinions.

So what happened.. well my customer (BJB on this site) entered the onramp and when the vehicle shifted at about 3/4 throttle (he says.. i know it was full throttle ha) and after a slight hesitation the vehicle had a decently loud knock and instantly shut down and coasted to a stop. It turns over and starts (sounds like on 1 cylinder) and yep the knock is there. Sounds like on the drivers side but i will be tearing into it to see what happened with pics. So for now another dead 6.1 till its new life as a 7.0. Looking forwards to the 10's... or maybe 9's if all goes well...:D
Mat,
Don't rule out ASM or Indy.
Indy did my 426 and then sent it to ASM, where it has been resting.
It should go on the dyno, 2nd week of Nov. with their (ASM) Predator tune that will be "canned" .

Sorry to here about the dreaded knock. Obviously not a good month for 6.1's in Jeeps!
Bill

Mat,
Don't rule out ASM or Indy.
Indy did my 426 and then sent it to ASM, where it has been resting.
It should go on the dyno, 2nd week of Nov. with their (ASM) Predator tune that will be "canned" .

Sorry to here about the dreaded knock. Obviously not a good month for 6.1's in Jeeps!
Bill

I will make some calls to them tomorrow. I guess PPP uses indy for their short blocks rumor has it.

Also forgot to mention the 9" will be ordered asap as well. Thanks builder for all your pervious work. Also will need a smaller pully and larger intercooler setup for the supercharger..

well heres a pic of the ride home..

well heres a pic of the ride home..
Western is currently building a 9" for a Bud with a ASM supercharged 426.
ASM will be putting my Supercharged 426 on the engine dyno. I believe that they have built 3 or 4 of them for local guys.

What do you think happened to yours? Fuel starvation and lean out and there goes a piston?
Bill

It was more like like running up on the raised rev limit (+600) a slight hesitation when it shifted, the feeling of a mis-fire, seeing many ip lights flashing and then the engine shutting down. Then calling Bryan for help!

Keep me updated. I am very concerned about going any further in HP till I see how Bill's driveline holds up.

It was more like like running up on the raised rev limit (+600) a slight hesitation when it shifted, the feeling of a mis-fire, seeing many ip lights flashing and then the engine shutting down. Then calling Bryan for help!

If you go 426 you're going to need a larger blower as well.

Dang, sorry to hear this. I am curious to know what failed? Sounds like a cylinder went lean and a piston burned up.

Well this is now in the works thanks to the current 6.1 taking a **** tonight. The vehicle already has the ASM setup and now we get to turn the boost up and feed a mighty 426. Heres where i need your help. This just happened today and have already talked to both jeremy at PPP and Bruce at HHP. I am looking to who has used each to voice their opinions. I am leaning one way but i will keep this unbiased on my opinions.

So what happened.. well my customer (BJB on this site) entered the onramp and when the vehicle shifted at about 3/4 throttle (he says.. i know it was full throttle ha) and after a slight hesitation the vehicle had a decently loud knock and instantly shut down and coasted to a stop. It turns over and starts (sounds like on 1 cylinder) and yep the knock is there. Sounds like on the drivers side but i will be tearing into it to see what happened with pics. So for now another dead 6.1 till its new life as a 7.0. Looking forwards to the 10's... or maybe 9's if all goes well...:D

Also the poll should say which builder but i can't edit that.. thanks

Marty at
http://www.krcperformance.com/krc/index.php?option=com_frontpage&Itemid=1
did good work to my friend engine . did his their .

Both PPP and HHP are running some of the fastest N/A cars right now,
also the old Hemi shop Performance Research & Development
(my buddy Stu) has one of the fastest cars right now. And then there is the Cali guys (CMW??) I think right now just about everyone has about the same tech for the 426. The bottom end is pretty much all the same. All you have for a choice for a crank is Callies Comp if you don't regrind the stock crank. The heads is where some of the differences are.

So I think it's all about dead even.

I think if you want the best that money can buy for a Mopar engine Gary Stanton is the King.

Obviously not a good month for 6.1's in Jeeps!
Bill

Betcha it was the pistons LOL.

If you go 426 you're going to need a larger blower as well.
ASM is developing a large supercharger for the 426.
Bill

Regardless of which setup you go with, the limiting factor is going to be the driveline. There's just no data out there with people running high horsepower applications... BBill's rear end will probably hold up, but who knows how much the tranny will take. I spoke with Renn-Tech and pretty much the entire conversation was a disclaimer about how all their upgrade was supposed to do is put some new clutches in and make it hold up a little better.... not exactly a warm fuzzy when you're talking about putting close to 1000hp out. No one knows when the half-shafts, front axles, transfer case, etc is going to let loose.

Regardless of which setup you go with, the limiting factor is going to be the driveline. There's just no data out there with people running high horsepower applications... BBill's rear end will probably hold up, but who knows how much the tranny will take. I spoke with Renn-Tech and pretty much the entire conversation was a disclaimer about how all their upgrade was supposed to do is put some new clutches in and make it hold up a little better.... not exactly a warm fuzzy when you're talking about putting close to 1000hp out. No one knows when the half-shafts, front axles, transfer case, etc is going to let loose.
Navy,
Exactly correct.
We are charting VERY unknown territory with the Jeeps.
One could guess all day long about which driveline component will fail. Once Drag Radials are installed, ALL bets are off.
I hope this does not get into breaking the front diff! Maybe not with stock tires up front that should spin slightly.
I have had "experts" look inside our transfer case and report back that it should be ok. HAAAA. Time will tell. The only transfer case failure to day was due to different size tires front & rear.
Bill

Well thanks for all the opinions and help.. i have lots of peple to talk to today and phone calls to make.. Looking forward to getting everything ordered and it will be christmas when it all arives... and hell i'm only the builder

ASM is developing a large supercharger for the 426.
Bill

ASM told me they would just upgrade to a T-trim. didn't mention anything else. i spoke with Ben

ASM told me they would just upgrade to a T-trim. didn't mention anything else. i spoke with Ben
T-trim may of been the upgrade that I was told.
Bill

T-trim may of been the upgrade that I was told.
Bill

well sweet, motors been ordered, rearend is ordered, t-trim will be shortly along with new intercooler setup. :D

Christmas!! WTF

ASM told me they would just upgrade to a T-trim. didn't mention anything else. i spoke with Ben

A T-trim is on the small end of blowers for a 370CID engine, it was never meant to fill a 426.

A T-trim is on the small end of blowers for a 370CID engine, it was never meant to fill a 426.

yea we are currently looking into larger as well. just trying to make it a beast ;)

Sooooooooo
Who the vendor that gets to make the 426?????????



Jeff

HHP. Bruce has been great to work with. Check went in the mail today.. Ouch!:rolleyes:

im currently getting my 426 from ppp they have the world record in there 300c there running 11.2 in the 1320 just on motor no nitrous no supercharger im running the same setup with a direct port 300 shot my engine should be ready in aprox. 2 weeks then its to the dyno so ill let you guys know whats up

im currently getting my 426 from ppp they have the world record in there 300c there running 11.2 in the 1320 just on motor no nitrous no supercharger im running the same setup with a direct port 300 shot my engine should be ready in aprox. 2 weeks then its to the dyno so ill let you guys know whats up
Thats going to be a beast!!!!
Bill

i currentlly have my motor at ppp there 426 has the world record in the 1/4 there 300c is running 11.2 on motor im running a slightly better setup then him with a direct port 300shot my engine should be ready in 2 weeks then its to the dyno so ill let you guys know whats up also i have the 9" rear thanks to mark at western diff and bill low 10's high 9's are my goal for now

i currentlly have my motor at ppp there 426 has the world record in the 1/4 there 300c is running 11.2 on motor im running a slightly better setup then him with a direct port 300shot my engine should be ready in 2 weeks then its to the dyno so ill let you guys know whats up also i have the 9" rear thanks to mark at western diff and bill low 10's high 9's are my goal for now
I'm looking for mid-upper 10's from mine.
To get 10.0 it looks like we would need over 1000 hp with the 5,000 lb shoebox we have!:eek:
Again, it COULD be possible, have to get into gear ratio changes etc. No problem with a Ford 9" but the front diff???
The front driveshafts are tiny to say nothing about the aluminum carrier itself.
It will be a fun spring at some track where we all meet and run these 426's.
Bill

I have purchased (8) 426 from PPP for many guys here at my place. three of them running GSM and the rest N/A.
I have never had any issues with that, in fact the 1st ever 426 i had was in Nov.2006 and took a supercharger in right away. the car been running since then without any problems.

The heads and the cams make a difference too

it all depends on how you tune it.

ppp is putting together an event for the new hemi cars & trucks maybe we can all meet there, by the way bill nitto is coming out with a 20' drag radial by nov. it will be on sale looks like that might be able to help us with traction

by the way bill nitto is coming out with a 20' drag radial by nov. it will be on sale looks like that might be able to help us with traction
Damn,and I went and had special wheels made for the 18" Nittos that are the same height as our front tires.
Bill

i was going to do the same thing what do you think about running the 1/4 in 2wd mode with some nice drag radials ive got some 17' rims on mickey thompson street et's ther 27 inches high the only thing im worried about is that the 4wd might kick back in

well the motors tore down... and well only 1 piston is good still.. let me repeat 1 (one)... 7 popped the heads off of where the ringland is on top and i will have pictures up later tonight or tomorrow sometime... and yes as the owner of the truck said HHP is going to be doing the engine work and definently looking forward to getting this thing up and running.. updates to come later

i was going to do the same thing what do you think about running the 1/4 in 2wd mode with some nice drag radials ive got some 17' rims on mickey thompson street et's ther 27 inches high the only thing im worried about is that the 4wd might kick back in
Juice,
Be VERY careful with the transfer case and the mismatch.
IF the 4wd EVER kicked back in, you would be contacting me for one of my spares!:D
Bill

well the motors tore down... and well only 1 piston is good still.. let me repeat 1 (one)... 7 popped the heads off of where the ringland is on top and i will have pictures up later tonight or tomorrow sometime... and yes as the owner of the truck said HHP is going to be doing the engine work and definently looking forward to getting this thing up and running.. updates to come later
GREAT info, look forward to the photos.
Bill

hopefully atlas can solve are transfer case issues

I dont see 9's as being achievable without a lot of streetability sacrificed, and some extremely deep pockets... maybe with around 1200HP, all four wheels with drag radials, and every part inbetween beefed up to the max. You're approaching the limits of the block now.. its a production block, not a race block, not sleeved, not anything... just cast iron.

When you stroke a motor you also increase internal engine stress. For a given RPM, the piston must travel farther in the same amount of time, thus velocity increases, and of course it's integral, acceleration. Newton's second law states that F=ma; therefore, the direct relationship results in a linear increase in axial force in the rod and torsional moment of the crankshaft. At over 1000hp, the crank is literally trying to blast out of the bottom of the engine.

As a final note, these transmissions have been documented to melt while passing the 550rwhp mark on more than one occasion.

I think Bill will achieve High 10's after he gets his tune right. Just a guess though :D

I don't think anyone has found the limits of a stock displacement 6.1 block yet, and even the "weakest" run of the mill cast iron Ford Modular 4.6/5.4 blocks are good to 1400HP+.

I dont know why so many people speak of the Ford modulars as being so bullet-proof. I've owned 2 cobras... was one of the first to push the 03's with eaton supercharger, guys on my old forum were blowing those things up left and right.... seemed like there was always a video of some moron on streetfire going up in smoke on a modular 4.6.

Maybe they've come a long way since then.

I dont know why so many people speak of the Ford modulars as being so bullet-proof. I've owned 2 cobras... was one of the first to push the 03's with eaton supercharger, guys on my old forum were blowing those things up left and right.... seemed like there was always a video of some moron on streetfire going up in smoke on a modular 4.6.

Maybe they've come a long way since then.

Thank the ****ty zollner pistons. Weak skirts that collapse over time at 550rw+ and main caps that walk at that power level as well. Aftermarket 2618 pistons and ARP hardware solve that problem quite nicely.
As for the blocks themselves, even the cheap ones are stronger than 99.9% of their owners will ever need. Stock forged 4.6 cranks are good for 9000rpm and 1400hp+ as well.
They are well designed motors, no question.

I don't think anyone has found the limits of a stock displacement 6.1 block yet, and even the "weakest" run of the mill cast iron Ford Modular 4.6/5.4 blocks are good to 1400HP+.

About the most HP I've seen put out by a new hemi anything to date is WBW1 or WBW2 depending on the forum. He has a ram 1500 that went 11.46 @ 120.89 acouple of weeks back. He burned his differential clutches out so he was one wheeling it but he backed it up with a 11.6 @ 122. His settup is a 370 CI stroker baised off the 5.7 block, Offset ground 6.1 crank to 1.889" honda rod journals. He has a ported 6.1 top end. On the runs above he was spraying a two stage that totaled out to 270 worth of NOS. I'm thinking he was pushing somewhere around 850-900 HP at the flywheel and should go into the 10's now that the differentials fixed and the weather isn't 2200' like it was when he ran the 11.46. He's Currently the fastest NA hemi truck in the country by about 3/4 second with a 12.06 @ 110 on the motor and next fastest unlimited has run a best of 11.94 with a supercharged 392 in 55 degree weather.

He's going to run again at red river raceway in Gillam LA on Nov 3rd and is hoping to get the first truck in the 11's NA and 10's with spray. He was talking about 283 HP worth of NOS jets this time around but I know he wants that 11's NA slip before he starts spraying.

Although, the new hemi block doesnt look particlurarly strong in the main journal area I think that the lighter rotating/recriprocating assemblies will allow it to take more power than you would think basing it off of what old v8 blocks will handle.

What I'm trying to say is the thin spot under the main journals is about the same as a 440 mopar and 440's will strart to crack at between 600-650 HP. The cross blots will help some but I think the big factor will be the 1550 gram bob weights that a you can build a 392 stroker with where the 440 often will have bob weights of almost 2000 grams and since the forces are logrythmic with RPM weight saved is strength gained.

Good info Stu.

It would not be good if I am replacing every driveline component imaginable and it turns out the weak link on the 426 was the block itself.:mad:
Bill

Sofar, it's holding up with what should be 850-900 flywheel. He'll get a rear wheel dyno on it soon. If it scatters I'm sure you'll all know. I think weight is the way to make high HP work.

Sofar, it's holding up with what should be 850-900 flywheel. He'll get a rear wheel dyno on it soon. If it scatters I'm sure you'll all know. I think weight is the way to make high HP work.
Thanks Stu.
Please keep us informed!:)
Bill

well the motors on the palate and ready to ship out in the morning.. time to take the rear off so that can get shipped out as well... have lots of pics for tonight

builder check your PM's

builder check your PM's
Just got in....check your PM.
Bill