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  • Fox 5.0 Mustang Tech

FORD RACING E303 AND CRANE 1.7 ROCKERS

  • Thread starter Thread starter STANGNEWGUY
  • Start date Start date Feb 10, 2008
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STANGNEWGUY

New Member
Feb 10, 2008
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FULTON IL
Feb 10, 2008
#1
  • Feb 10, 2008
  • #1
I HAVE A STOCK 40K 302 IN A 89 MUSTANG. LOOKING TO DO A CAM AND ROCKER UPGRADE. I AM LOOKING TO DO A E303 AND CRANE 1.7 PEDESTAL ROCKERS..WILL I HAVE VALVE CLEARENCE ISSUES? ALSO WILL I SEE A GAIN IN A 70MM THROTTLE BODY? IM LOOKING TO DO A COMBINATION ALL AT ONCE. DOES ANYONE KNOW A GOOD COMBO THAT ACTUALLY MAKES GOOD POWER?? ID LIKE TO USE STOCK HEADS AND I HAVE A COBRA INTAKE. IM NOT LOOKING FOR A 12SEC. CAR BUT JUST MAKE EXTRA POWER. ANY INFO IS APPRECIATED..THANKS
 

StangItMan

Member
Dec 9, 2006
34
0
6
Tampa Bay Area
Feb 10, 2008
#2
  • Feb 10, 2008
  • #2
reply

Did same with stock rockers and stock manifold - enjoyed the sound and performance uprade / headers, of course.

Soon after Cobra Intake and 1.7's - again a positive outcome, which worked out even better with 24# injectors.

Daily driver, 5 speed car --- Have at it!
 

85ragtop

BTW, I like dudes.
10 Year Member
Nov 29, 1999
823
475
123
NC
Feb 10, 2008
#3
  • Feb 10, 2008
  • #3
Moved to 5.0 tech.
 

88mouse

New Member
Apr 18, 2007
630
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Mooresville nc
Feb 10, 2008
#4
  • Feb 10, 2008
  • #4
That is the exact same setup I have. You will be fine.
 
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STANGNEWGUY

New Member
Feb 10, 2008
5
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0
FULTON IL
Feb 11, 2008
#5
  • Feb 11, 2008
  • #5
COMPUTER?

WILL I NEED TO DO ANY COMPUTER MODIFICATIONS TO RUN THE E303 AND 1.7S?? WOULD I BE BETTER OFF AT ALL TO GO WITH ADJUSTABLE ROCKERS? INSTEAD OF PEDESTAL? THANKS FOR THE HELP
 

2000xp8

SN Certified Technician
Aug 8, 2003
8,029
1,621
194
NJ
Feb 11, 2008
#6
  • Feb 11, 2008
  • #6
The cam is not worth the effort.
I ran a similar setup for a while. The cam Did little to nothing for power.
Besides stock valve springs either may not put up with the cam and rocker combo for long, or maybe even not at all.


I'd use the intake, tb, and rockers. But not waste my energy or gaskets on the cam.
And without heads, 24lb injectors will be too much.
Stock injectors will supply at least 275rwhp, and the combo you plan will be around 50rwhp short of that.

Save the cam for when you do heads. Only thing it will do for now is make the car sound mean at idle.

BTW, i'd also consider not using all capital letters, it's hard to read and eventually someone will come in here and say something nasty.
on the internet capitals=yelling
 

88mouse

New Member
Apr 18, 2007
630
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Mooresville nc
Feb 11, 2008
#7
  • Feb 11, 2008
  • #7
The stock computer will be fine. Like 2000xp8 said you will need to change valve springs to. You can do it with the heads on the car. You can also do the cam swap with out having to pull the intake. I just done it all on my car.
 
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redneck15431

Member
May 13, 2006
83
3
9
Feb 11, 2008
#8
  • Feb 11, 2008
  • #8
?

88mouse said:
The stock computer will be fine. Like 2000xp8 said you will need to change valve springs to. You can do it with the heads on the car. You can also do the cam swap with out having to pull the intake. I just done it all on my car.
Click to expand...

How did you keep the lifters from falling into the oil pan? magnets? Just curious because I had thought about doing a cam swap again this year but didn't want to strip it down to the long block again
 
9

95GTAODE

New Member
Nov 25, 2004
200
2
0
Feb 11, 2008
#9
  • Feb 11, 2008
  • #9
redneck15431 said:
How did you keep the lifters from falling into the oil pan? magnets? Just curious because I had thought about doing a cam swap again this year but didn't want to strip it down to the long block again
Click to expand...

You pull the lifters out BEFORE you pull the cam....
 

the pony boy

Founding Member
Apr 19, 2002
358
0
16
10512
Feb 11, 2008
#10
  • Feb 11, 2008
  • #10
i think anderson sells a kit to change out cams with out removing the headsor intake. heres the link i found.

http://www.andersonfordmotorsport.com/
 

88mouse

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Apr 18, 2007
630
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0
Mooresville nc
Feb 11, 2008
#11
  • Feb 11, 2008
  • #11
redneck15431 said:
How did you keep the lifters from falling into the oil pan? magnets? Just curious because I had thought about doing a cam swap again this year but didn't want to strip it down to the long block again
Click to expand...

Yea AFM sell tappet tools to hold them up. You just have to pull the valve cover, rockers and push rods. Then use the tappet tools.

Here is another thread talking about them from a few weeks ago.

http://forums.stangnet.com/showthread.php?p=7328104#post7328104
 

Fast63

New Member
Sep 20, 2007
717
0
0
Feb 12, 2008
#12
  • Feb 12, 2008
  • #12
2000xp8 said:
The cam is not worth the effort.
I ran a similar setup for a while. The cam Did little to nothing for power.
Besides stock valve springs either may not put up with the cam and rocker combo for long, or maybe even not at all.

Save the cam for when you do heads. Only thing it will do for now is make the car sound mean at idle.
Click to expand...

I agree with this. I ran the E-cam with stock heads and also with my Roush 180 heads, and in both cases I find the stock cam to be a better choice. If you want a little more, use 1.7's on the stock cam, that's what I'm doing.
 
P

patrickmx2

New Member
Jul 25, 2007
32
0
0
Near Memphis TN
Feb 12, 2008
#13
  • Feb 12, 2008
  • #13
Heck I just REMOVED my E303 and 1.6 rollers and put in a STOCK HO cam into my 98 Explorer Motor (in my Mustang) with a set of Crane 1.7's. The care idles SO much better and power.... well, I don't think I lost a freaking bit.

Heck even according to some Desktop Dyno software the HO made slightly more HP but less torque. I put in all the GT40P head flow data also and the software reports about what the car makes on the dyno, minus the drivetrain losses. So if it is telling the truth loosing a touch of torque on the low end can help with traction and picked up a few extra ponies in the process.

Now the GT40P heads run a smaller exhaust valve than usual but they have great port velocity and attributes that the E303 probably wasn't designed to take advantage of where pure luck puts the HO cam back in the game.

Why didnt I put the HO cam in to begin with? I just got the motor and pulled the Explorer cam and installed the E303. Never thought about the HO cam until I heard others doing it.

Honestly I don't go for all that rickty rick loping idle which seems to be more show than go anyway for a street car I drive 100 miles to work every day round trip. The cars that actually make power that demand that classic noisy idle don't get the 24-26 MPG I typically get and driving them 30K miles a year isn't practical for me.
 
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STANGNEWGUY

New Member
Feb 10, 2008
5
0
0
FULTON IL
Feb 12, 2008
#14
  • Feb 12, 2008
  • #14
New heads?

You say not to run e303 cam unless i do heads..well what heads would be the best choice on a budget?? GT40x? valve springs i understand i planned on that anyway. will i have issue with the stock clutch? its new but will it hold? Thanks for the help.
 
P

patrickmx2

New Member
Jul 25, 2007
32
0
0
Near Memphis TN
Feb 12, 2008
#15
  • Feb 12, 2008
  • #15
STANGNEWGUY said:
You say not to run e303 cam unless i do heads..well what heads would be the best choice on a budget?? GT40x? valve springs i understand i planned on that anyway. will i have issue with the stock clutch? its new but will it hold? Thanks for the help.
Click to expand...

Read this link below. It will help you see some interesting things about the GT40P heads as well when compared to the others. Pay attention to A.U.C (area under the curve). I can get complete running Explorer GT40P engines from my local yards for $450! I own three of them. Oh and I always liked a good Centerforce clutch. Easy pedal operation and handles good power.


http://www.stangpro.com/HTML/ARTICLES/GT40P_FILES/GT40P1.HTM
 

NKau

Founding Member
Dec 15, 2001
1,346
0
37
Jefferson, WI
Feb 12, 2008
#16
  • Feb 12, 2008
  • #16
2000xp8 said:
Save the cam for when you do heads. Only thing it will do for now is make the car sound mean at idle.
Click to expand...
 
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STANGNEWGUY

New Member
Feb 10, 2008
5
0
0
FULTON IL
Feb 12, 2008
#17
  • Feb 12, 2008
  • #17
new heads?

will i find a decent horsepower gain doin the cam ,rockers, and heads?? also i have BBK long tube headers>will they work with the gt40p?
 

stykthyn

I want to measure mine. It doesn't look that tall.
15 Year Member
Jul 6, 2006
5,232
2,652
223
gainesville
Feb 12, 2008
#18
  • Feb 12, 2008
  • #18
the headers will fit, but you will be unable to put a wrench on the spark plugs. if you go with p heads you will need P-head specific headers.
 
9

95GTAODE

New Member
Nov 25, 2004
200
2
0
Feb 12, 2008
#19
  • Feb 12, 2008
  • #19
BBK LT's work great. You will need to use 90* plug boots, and a cut down spark plug socket to change the # 5, 6, and 7 plugs. I can still change mine faster than on a stocker.
 

2000xp8

SN Certified Technician
Aug 8, 2003
8,029
1,621
194
NJ
Feb 12, 2008
#20
  • Feb 12, 2008
  • #20
The heads are part of a combo. If you are missing any piece of the combination the car won't be up to potential.
This is why i tell people, do it all at once, saves you time and gaskets.
Even if you have to save up a few more months it's worth it to do it one time only.

If you can find gt40x's cheap, they are good, but at full price of a grand, i would throw the extra 100 bucks in and get twisted wedges.
 
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