I finally got the ECM tuned out and made some pulls today.

Little background..

454 cubic inch
AFR CNC'd 210 cc runner, 76 cc chamber heads
Holley StealthRam intake
58mm BBK TB
32 lb injectors
Solid Roller
9.59:1 compression

The lowest the dyno would hold her was 3000 rpm, that was 475 ft/lbs of torque

On the upper end

557 ft/lbs at 4400
506 hp at 5500

This thing is just screaming for a bigger cam, but I wanted low end torque.

After thinking I had my max I had to go back and see what more I could get, well I leaned it out a bit at and back the timing to 34 degrees and got 511 hp @5200 and 552 ft/lbs @ 4700

I then went up to 12.90 A/F ratio with 34 degrees and got my original 506hp and 557 ft/lbs. I think thats about all its going to do, I can't imagine what this motor would be like with 13:1 and a big cam. It revs up like a 327, even with the dyno loaded it still wraps up FAST... Here is a shot of the graph,

My video camera is MIA but if I find it before I have to pull it off the dyno I will shoot some footage..

 

Thanks for sharing!! Do you have any pics of the Jeep? 550 ft/lb's spinning 32" tires in four wheel drive sounds like a lot of fun

 

How about lifting 42's off the ground... With my 415 I could lift the fronts about 6" and it was running like crap.

 

The trails won't know what hit 'em

 

I realize its not set up for dragging at ALL, but what would something like that run in the 1/4??

 

I would figure it would run mid 13's in the quarter.. It does weigh 5500lbs.. I am thinking about going to an automatic, if I do I may just have to find out!

In a 3500lb car you looking at a 11.65 et

 

dang thats impressive. A super ported out TPI with fully siamesed TPI runners like AS&M would make over 600lbft torque i bet and a real low rpm LOL either way, thats cool as hell. 454 sbc!! thats what i want. 500rwhp better be doing bottom 11's or better especially with that torque!!

 

That is friggin SWEET!

I want one.

 

Wow didn't realize they weighed that much, but I'm sure the tires, cage, skid plates and 14 bolt add a lot of weight. I'd still throw a quiet exhaust on it and go out on the streets... Although I'm sure that thing might get scary over 100 mph

After riding my dads 700 polaris, I can't seem to justify the money that would be involved in a killer jeep like that, but more power to ya!

 

i installed 30 pounders in my camaro with stock chip idles ok like stock injectors.

 

TPIJeep, how much "buildup & hogging" to the HSR base did you have to do to port match it to those AFR210s?

 

I used the tall deck block so I had to use intake spacers, basically 3/8" plate cut in the shape of your gasket. The HSR is about the size of a FelPro 1205 intake gasket and the AFR's are the size of the FelPro 1206 intake gasket. I was not real concerned about perfect port match so all I did was bevel the intake spacer to get a little smoother transistion. There is enough material on the HSR to gasket match but it would be pretty involved to get it perfect.

 

Yep, based on the dyno article below, I'd think 600 lb/ft with LTRs would be possible with a smaller cam than they ran and on Jeep's combination.

I ran across this old late 80s early 90’s “Chevrolet Engines” magazine article where a Phaff Enterprise 454 small block was run on the dyno with a few TPI based induction systems. The article is not very detailed, but it is a 10.5:1 compression 4.185/4.125 (454) small block with heavily ported Bowtie Phase VI heads and a “secret” solid roller cam. Best guess is the heads would have to flow in the 295 cfm range around .700 lift and the Crane cam probably would have been in the neighborhood of 245 @ .050 on a 112 spread with lift in the .600 - .660 range.

Only peaks are given in this article.

Baseline with a Victor Jr and 850 DP ------------ 555 HP @ 5700 / 540 TQ @ 5400
Edelbrock base, SuperRam Uppers -------------- 514 HP @ 5300 / 540 TQ @ 5000
AS&M ported GM base, AS&M S/S Runners ------ 505 HP @ 5300 / 576 TQ @ 4400
AS&M ported GM base, AS&M LTRs ------------- 486 HP @ 4700 / 575 TQ @ 3000

It doesn’t really say if the Victor Jr or SuperRam systems were ported,, although I would think they were at least gasket matched,, if not at a minimum slightly ported. It did say the ASM “stock” GM base was extrude honed. 58mm T/B were used, 1 ¾” dyno headers, uncapped – that’s about all the info it gives,, basically because the article is a glorified advertisement for Phaff Enterprise - and these engines were serious money. However,, I do no think they had any reason to fudge on the dyno data (from one intake system to the other), plus it seems relatively consistent with other very similar pulls I’ve seen,, and even Jeep's pulls (based on the differences in the engines),, but if you're not there,,,, who knows huh?

All I know for sure is,,, Jeep,, you have one heck of an engine there!!!!

 

I am trying to get it back in, all the accessory brackets had to be refabbed because of the taller deck height.

I hope I can get a street guy to buy one of these from me!