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Author Topic:   shaved head
4b316
Dirt Forum Racer

Total posts: 87
posted November 05, 2003 07:32 AM  
How much can I shave my 2.3 ranger head and not worry about an adjustable cam gear?Can I broach a new keyway in my gear and be alright?Does shaving a head retard or advance the timing?What is better?We turn 6100 with a stock rev limiter in a 94 ranger

maweenie
Dirt Roller

Total posts: 21
posted November 05, 2003 09:58 AM  
goto esslinger they have everything you need I have heard of taking off 125 thousandths but everything has to be put together perfectly with adjustable cam sprocket.you will have to advance the cam about 4 degrees or so but make sure you have the right head for better performance(probably not the 94 ranger head, just guessing)probably want a better distributor and ignition also.any time you shave alot off your gonna want an adjustable pulley

[This message has been edited by maweenie (edited November 05, 2003).]

wizzard
Dirt Freak

Total posts: 306
posted November 05, 2003 03:00 PM  
ok this is what we did shaved .120 off head just an old 79 pinto head with a .510 310 solid isky run stock gear with forged flat tops never hit pistons or blew gaskets or no cracks run good for 25000 miles.oh ya this was in a ford courier runin nos what finaly killed it was the bottem end come apart

b4racing
Dirt Forum Champ
Total posts: 626
posted November 05, 2003 06:06 PM  
you can go all the way to 180 if you get an adjustable cam gear and intake studs. I would suggest 150 though so if you ever warped it you could straighten it. Also maweenie is right the 94 head is not the best choice. If you are not going to have it flowed and ported and plolished just go with a 81-85 d-port head. IF you can open it up some go with the older oval port, if you want to go hog wild and the best go with the ranger round port and have JD Laramee set it up. This is the badest mf I have ever drove. If you do not want an adjustable cam then I would contact schnieder they can design a cam so you can run it straight up. Shaving the head I believe retards it. some cheaper alternatives to esslinger is racerwalsh.com or raceeng.com they both are good shops. I realize esslinger claims extra hp but I dont buy it and I want more bang for the buck when you can buy the same thing for .5 the price.

yabba48
Dirt Full Roller

Total posts: 32
posted November 06, 2003 08:21 AM  
i have a head shaved 150 and use the stock cam gear. tell me would i get a whole lot more if i used a adjustable gear. i have won a few races and many heats with just what i have. It is a oval port head.

b4racing
Dirt Forum Champ
Total posts: 626
posted November 06, 2003 11:55 AM  
the thing with an adj cam gear is you can fine tune your engine with it. Can you gain I would say definietly but how much I do not know. BObby

4b316
Dirt Forum Racer

Total posts: 87
posted November 06, 2003 03:55 PM  
The rules say we can"t use a adj. gear that why I asked about a new keyway broached.I run a 94 ranger with stock EFI.I'd like to shave the head this year when I have it apart to freshen.Does anybody know for sure if shaving retards or advances the cam timing?Which is better for 6000-6100?We usaully run from 5500 up to 6100(against the stock rev limiter)

wizzard
Dirt Freak

Total posts: 306
posted November 06, 2003 04:18 PM  
i cant see why it would do either your just bringing the gear closer to the crank so that would make the belt looser but the ideler pully should take out the extra slack and not mess up timing like i said befor we shaved ours .120 w/stock gear and run it on the street for 25kmile trouble free

yabba48
Dirt Full Roller

Total posts: 32
posted November 07, 2003 08:58 AM  
i have my head shaved 150 and run the stock gear and dont have any problem twisting 7000 rpm. i run right with the strokers and top dollar motors.

1195
Dirt Roller

Total posts: 10
posted November 07, 2003 09:48 AM  
Shaving the head retards the cam timing. About 1 degree for each .020

maweenie
Dirt Roller

Total posts: 21
posted November 07, 2003 09:50 PM  
highroller is exactly right about everything.THE ADJUSTABLE PULLEY DEFINATELY HELPS,the others are just getting the power to the ground better.HANDLING IS EVERYTHING.

SLEEPY GOMEZ
Dirt Freak

Total posts: 295
posted November 11, 2003 02:37 PM  
When you can't use an adjustable pulley, you can broach a new keyway. But easier than that: Put the belt on not using the key in the cam gear. When all is right to your satisfaction, drill and tap a hole half in the gear and half in the cam. A 5/16 - 24 allen set screw with loctite is now your new key and it was almost free. SLEEPY

speedyd1
Dirt Maniac

Total posts: 170
posted December 14, 2003 01:33 PM  
ford motorsports offers a multi index cam sprocket with multiple key ways. not too expensive - i'm thinking 50.00. its factory and cant be seen when the cam bolt is in place. works fine - just follow the instructions.

ministock#50
Dirt Full Roller

Total posts: 40
posted January 09, 2004 03:51 PM  
we have shaved our 2.3 head to 130 but find that you get claose to the bolt holes for the intake so if you angle mill it we have a guy at our track who took 190 off that way adn he siad there still more he could take off

juliaferrell
Dirt Freak

Total posts: 370
posted April 06, 2004 02:15 PM  
take a sawzall and cut the keyway out( you would be cutting the left side of the keyway out as you're looking at the front of the engine. Dial your cam in by the specs that cam with the cam (ie, crane doesn't e-tool like esslinger stuff!!) notice where the cam sprocket needs to set. Couple square keys file them and put them on the right side of the key. WORKS
There is no way your engine is running close if you haven't degreed your cam when you mill the head. You're the kind that I'd love to have come to my track

racerman707
Dirt Freak

Total posts: 374
posted April 06, 2004 05:34 PM  
I second that.You need to degree the cam to see what you have.Then go by the manufactures "suggestions" as to where to set the cam.Then fix your gear.

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