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Topic: Cam questions....same but different.... (Read 1306 times) previous topic - next topic

Cam questions....same but different....

My friend has an '86 Mustang GT.He just bought the same cam I did (we have a friendly cometition),a B-303.He has E-6 heads,ported,with a 3 angle valve job.I figure the cam will work good with my E-7 heads,but how will it work in a car with E-6 heads (modified)?I told him to pick up a set of E-7 pickup heads,but he says he can't for the time being,and he's going to use the E-6's for now.Can it still make good power to the ground?He has 3.08 gears,Cobra intake,MAC headers,and off road H-Pipe.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Cam questions....same but different....

Reply #1 –
It'll be better than the stock cam with the same heads ( especially the mid range.. like when your cruisin' & then romp on it)BUThe won't see the same improvements at the top end since the heads are stifling the aspiration. My opinion- the E6s suk- should've been the 1st mod, especially from an assembly POV.Matter of fact, I wouldn't even take the time to tear down to do the cam swap until I had the heads E7s or better yet GT40s or Y303s.

Cam questions....same but different....

Reply #2 –
I agree that E-6 heads are ,that's why I got E-7 heads and had them worked.But,he has what he has,and he has to put a cam in it anyway.He overheated the engine and is trying to get the car back on the road soon.Do you think that you'd lose power on the top end,or,just not live up to the cam's full potential?
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Cam questions....same but different....

Reply #3 –
Will that cam even work on an '86 block since it has flat top pistons?
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Cam questions....same but different....

Reply #4 –
I wonder that myself.I think that it will,but a PTV check will have to be done.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Cam questions....same but different....

Reply #5 –
I had a B303 cam in my '86 Capri, everything else was stock.
No issues other than since it was not a Mass-Air car, it would usually stall right after cold start-up and require a re-start. It did have a nice lopy idle to it.

Brent
:cougarsmily:
1985 Mercury Cougar XR-7 - 5-speed 
One of 1,246 built

Cam questions....same but different....

Reply #6 –
Mass Air will be added.Did your Capri have E-6 or E-7 heads?
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Cam questions....same but different....

Reply #7 –
It had E6AE heads on it, 1986 was the only year that they were used on Mustang's & Capri's.

Brent
:cougarsmily:
1985 Mercury Cougar XR-7 - 5-speed 
One of 1,246 built

Cam questions....same but different....

Reply #8 –
Thanks.I'm trying to gather ALL of the info in every aspect of installing a B-303 cam into this engine with the parts he has available.What kind of performance did you experience?Anything other than stalling on cold starts?How was gas mileage?
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Cam questions....same but different....

Reply #9 –
The cold start issue never bothered me and since your friend’s car will have mass air, it will probably take care of it and help with any mileage issues that the larger cam may cause.
I owned that car for over 10 years but I never checked my gas mileage on it, it was strictly a toy.
I was happy with the way the car ran with the cam, I liked the more erratic idle and I had two friends with stock Mustang's, an '85 GT, and a '89 LX and the car seemed noticeably livelier than both of them.
JAMEZILLA described it well, in comparison to the '89 LX, it was stronger in the mid-range but on the top end I would say they weren’t much different. That could very well be because of the restrictive E6 heads.

Brent
:cougarsmily:
1985 Mercury Cougar XR-7 - 5-speed 
One of 1,246 built

Cam questions....same but different....

Reply #10 –
I told him to get a pair of heads from a 5.0 pickup and call it good.Perhaps he will.E-6's are not performance heads by any means.I'm surprised they did as well as they did on the '86 models.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..

Cam questions....same but different....

Reply #11 –
Just check the PTV clearance before he installs the E7 heads. If it works cool:evilgrin:
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.

Cam questions....same but different....

Reply #12 –
On my h.O (forged flat tops),my E-7's work great.Although from engine to engine it may be a little different.Thanks.
'88 Sport--T-5,MGW shifter,Trick Flow R intake,Ed Curtis cam,Trick Flow heads,Scorpion rockers,75mm Accufab t-body,3G,mini starter,Taurus fan,BBK long tube headers,O/R H-Pipe, Flowamaster Super 44's, deep and deeper Cobra R wheels, Mass Air and 24's,8.8 with 3.73's,140 mph speedo,Mach 1 chin spoiler,SN-95 springs,CHE control arms,aluminum drive shaft and a lot more..
 

Cam questions....same but different....

Reply #13 –
As long as the pistons has valve reliefs he should be ok. If not I'd check it.
88 Thunderbird LX: 306, Edelbrock Performer heads, Comp 266HR cam, Edelbrock Performer RPM intake, bunch of other stuff.