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Combo's realistic or not?

Newbies, and basic Stroker Recipes... Get started with your first stroker here!!
freeclimber00
Posts: 3
Joined: December 7th, 2009, 1:50 pm
Vehicle Year: 2003
Vehicle Make: Jeep
Vehicle Model: TJ

Combo's realistic or not?

Postby freeclimber00 » December 12th, 2009, 10:38 am

First off. This is a great site and I am blown away at the level of knowledge here. This is the go to site for Strokers as far as I have found. Thank all of you that hold the Yoda powers in the Stroker world. Your are appreciated by a lot of us.

I have been reading through this site pretty hard over the past week or so in an attempt to familiarize with the basics of a Stroker. I have also been reading through other resources on the net as well. I am a person that wants to find out as much about a purchase as possible, prior to dropping the coin. I want the setup that suites me the best for the amount of money that I will be dropping shortly on a Stroker for my 2003 TJ.

I have read that a realistic HP# to expect out of a decent built Stroker is 300hp/330tq.

I have found a site that has a minagery of combos from high dollar to low buck combos. I want to share these with you and have you guys pick them apart, if you will. If you can throw an estimated dollar amount at each as well as verify there validity in terms of hp/tq numbers, that would be great.I have read about a lot of setups here that sometimes contradict the #'s below. I have a good idea of what I want/need, but would like your input on these combos.
There are 10 combos here.

Stroker combinations

I've outlined ten stroker combinations below based on budget and desired horsepower levels. To get maximum benefit from the stroker engine you need a free-flow intake with Powerstack or K&N cone filter, 62mm bored HO throttle body, header, high-flow cat, performance muffler and 2.5" exhaust piping.

4.5L "Poor man's" simple stroker

~ Jeep 4.2L 3.895" stroke crank
~ Jeep 4.2L 5.875" rods
~ Speed Pro 677P standard bore pistons
~ 9.05:1 CR
~ Stock 4.0 HO camshaft
~ Stock HO cylinder head
~ Stock 0.051" head gasket
~ 0.097" quench height
~ 2.25" exhaust
~ Ford 24lb/hr injectors with stock 39psi FPR for '87-'95 engines, stock injectors with stock 49psi FPR for '96 and later engines
226hp @ 4600rpm, 304lbft @ 2000rpm

4.6L Low-buck, low CR "rockcrawler"

~ Jeep 4.2L 3.895" stroke crank
~ Jeep 4.2L 5.875" rods
~ Keith-Black Silvolite UEM-2229 +0.030" bore pistons
~ Increase piston dish volume to 30cc
8.8:1 CR
~ Crane #750501 192/204 degree camshaft
~ Ported HO 1.91"/1.50" cylinder head
~ Mill block deck 0.035"
~ Mopar Performance 0.043" head gasket
~ 0.058" quench height
~ 2.25" exhaust
~ Ford 24lb/hr injectors with stock 39psi FPR for '87-'95 engines, stock injectors with stock 49psi FPR for '96 and later engines
~ 231hp @ 4400rpm, 327lbft @ 2000rpm



4.5L Low-buck simple stroker

~ Jeep 4.2L 3.895" stroke crank
~ Jeep 4.2L 5.875" rods
~ Jeep 4.0L 3.875" standard bore pistons
9.7:1 CR
~ CompCams #68-231-4 206/214 degree camshaft
~ Ported HO 1.91"/1.50" cylinder head
~ Stock 0.051" head gasket
~ 0.081" quench height
~ Ford 24lb/hr injectors with adjustable FPR or MAP adjuster for '87-'95 engines, Ford 24lb/hr injectors with stock 49psi FPR for '96 and later engines
~ 260hp @ 4850rpm, 321lbft @ 3500rpm

4.6L Low-buck stroker

Option 1: Same as above except:
~ Speed Pro H825CP +0.030" bore pistons
~ 9.6:1 CR
~ Mopar Performance 0.043" head gasket
~ 0.082" quench height*
~ 260hp @ 4800rpm, 324lbft @ 3500rpm

Option 2: Same as "rockcrawler" except:
~ Piston dish volume 22cc
~ 9.5:1 CR
~ Crane #753905 204/216 degree camshaft
~ 2.5" exhaust
~ Ford 24lb/hr injectors with adjustable FPR or MAP adjuster for '87-'95 engines, Ford 24lb/hr injectors with stock 49psi FPR for '96 and later engines
~ 256hp @ 4750rpm, 324lbft @ 3500rpm


4.7L medium-buck stroker

~ Jeep 4.2L 3.895" stroke crank
~ Jeep 4.0L 6.125" rods
~ Custom +0.060" bore pistons with 1.38" pin height & 25cc dish
~ 9.6:1 CR
~ Crane #753905 204/216 degree camshaft
~ Ported big valve 2.02"/1.60" cylinder head
~ Mopar Performance 0.043" head gasket
~ 0.043" quench height
~ Flometrics F&B 68mm billet TB
~ Accel 26lb/hr injectors with adjustable FPR or MAP adjuster for '87-'95 engines, Accel 26lb/hr injectors with stock 49psi FPR for '96 and later engines.
~ 270hp @ 4800rpm, 335lbft @ 3400rpm

4.8L medium-buck stroker

Option 1: Same as above except:
~ Custom 4.0" bore pistons with 1.38" pin height & 24cc dish
~ 10.0:1 CR
~ CompCams #68-235-4 210/218 degree camshaft
~ 284hp @ 4900rpm, 345lbft @ 3600rpm

Option 2: Same as Option 1 except:
~ Jeep 4.2L 5.875" rods bushed for 0.912" floating pin
~ Small Block Ford UEM-KB364 hypereutectic pistons
~ Mill block deck 0.015"
~ 0.051" quench height


4.9L high-buck stroker

~ 3.98" offset-ground stroker crank
~ Jeep 4.2L 5.875" rods
~ Small Block Chevy UEM-KB142 hypereutectic pistons
~ 10.5:1 CR
~ Crane #753941 216/228 degree camshaft
~ Ported big valve 2.02"/1.60" cylinder head
~ Mill block deck 0.015"
~ Mopar Performance 0.043" head gasket
~ 0.055" quench height
~ Flometrics F&B 68mm billet TB
~ 3.0" exhaust system
~ Ford 30lb/hr injectors with adjustable FPR or MAP adjuster for '87-'95 engines, Ford 30lb/hr injectors with stock 49psi FPR for '96 and later engines.
~ Custom PCM programming
~ 299hp @ 5000rpm, 353lbft @ 3700rpm

5.0L Very high-buck stroker

~ 4.06" offset-ground stroker crank
~ Jeep 4.2L 5.875" rods
~ Small Block Chevy UEM-KB142 hypereutectic pistons
~ 11.1:1 CR
~ Crane #751111 238/248 degree solid lifter cam
~ Ported big valve 2.02"/1.60" cylinder head
~ OEM 0.051" head gasket
~ 0.038" quench height
~ Flometrics F&B 68mm billet TB
~ 3.0" exhaust system
~ Ford 30lb/hr injectors with adjustable FPR or MAP adjuster
~ Custom PCM programming
~ 328hp @ 5250rpm, 375lbft @ 3800rpm

this info copy/pasted from www.ajeepthing.com
Thanks,
Rog.
Pony, MT.

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Cheromaniac
Senior Member
Senior Member
Posts: 2534
Joined: March 8th, 2008, 12:58 pm
Stroker Displacement: 4563cc
Vehicle Year: 1992
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: Cyprus
Contact:

Re: Combo's realistic or not?

Postby Cheromaniac » December 12th, 2009, 12:22 pm

That site was copied directly from mine a long time ago. If you click on the link in my sig., you'll see that I've updated those "recipes". The one that I'm running is a 0.020" overbored version of the "poor man's" simple stroker.
1992 Jeep XJ 4.6 Stroker - 5MT - Sold 13/12/2016 :(
202rwhp 258rwtq (248bhp 311lbft crank)
Stroker build-up, Stroker "recipes"
2006 Ford Mustang 4.6 GT - 5MT - Simple bolt ons
310rwhp 328rwtq (351bhp 368lbft crank)

YJ_and_Corey
I think I'll order a "tab"
I think I'll order a "tab"
Posts: 46
Joined: September 8th, 2009, 4:30 pm
Stroker Displacement: 4.7 and 4.9
Vehicle Year: 1993
Vehicle Make: Jeep
Vehicle Model: YJ

Re: Combo's realistic or not?

Postby YJ_and_Corey » December 12th, 2009, 2:54 pm

There are many glaring errors with the above list. FYI.

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gradon
Donator
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Posts: 1333
Joined: February 13th, 2008, 5:33 pm
Stroker Displacement: 4.6/280ci
Vehicle Year: 1996
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: DC

Re: Combo's realistic or not?

Postby gradon » December 12th, 2009, 4:17 pm

My build is a 4.6l high comp, medium $ build. It seems that many do a 4.6l or 4.7l medium comp, low-medium $ build. I've always wondered if those #s were just estimations/calculations or were actually measured, Dino. I would say that a 275hp/325lb-ft stroker would be a good realistic goal to shoot for.

freeclimber00
Posts: 3
Joined: December 7th, 2009, 1:50 pm
Vehicle Year: 2003
Vehicle Make: Jeep
Vehicle Model: TJ

Re: Combo's realistic or not?

Postby freeclimber00 » December 13th, 2009, 8:35 pm

Thanks guys for the insight.

User avatar
Cheromaniac
Senior Member
Senior Member
Posts: 2534
Joined: March 8th, 2008, 12:58 pm
Stroker Displacement: 4563cc
Vehicle Year: 1992
Vehicle Make: Jeep
Vehicle Model: Cherokee
Location: Cyprus
Contact:

Re: Combo's realistic or not?

Postby Cheromaniac » December 14th, 2009, 5:28 am

YJ_and_Corey wrote:There are many glaring errors with the above list. FYI.


Like I said, that list is old and I've updated it. I'd appreciate it if you could elaborate on the "glaring errors" so I can try to fix them.
As far as the maths goes, I tried to make it as accurate as possible and I simulated the dyno numbers on Dyno 2000. I did post some engine dyno numbers of real examples on the same page and you'll see that they're very close to my simulations. I also have real chassis dyno numbers of the "poor man's" simple stroker in my sig.
1992 Jeep XJ 4.6 Stroker - 5MT - Sold 13/12/2016 :(
202rwhp 258rwtq (248bhp 311lbft crank)
Stroker build-up, Stroker "recipes"
2006 Ford Mustang 4.6 GT - 5MT - Simple bolt ons
310rwhp 328rwtq (351bhp 368lbft crank)


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