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Topic: HO cam (Read 3734 times) previous topic - next topic

HO cam

Reply #30
You could, but assuming increased airflow from heads etc, unless the F/P is increased or has larger injectors, it'd be lean at WOT... With larger inj and/or more F/P, it'll likely be rich on part throttle at lower rpms...


HO cam

Reply #32
It sounds INCEDIBLY unhappy.  Speed density will allow some interesting cams to idle and rev...probably is they run rich at idle, go full rich too soon and you end up going lean as the RPM increases.

Just mass air the thing...it's stupid cheap and easy.  That sure doesn't look like a GT40 intake...looks like an Explorer intake.
Project 3G: Grandpa Grocery Getter-'85 Crown Vic LTD 2-door, 351W with heavily ported/polished GT40 heads, heavily ported/polished Typhoon Power Plus upper & lower intake, Comp Cams 265DEH retarded 1*, FAST EZ-EFI, HD T5, 8.8" 3.73 trac lock with extra clutches, 3G alt. swap, '99 CVPI front brakes, '09 CVPI rear disc brakes, '00 CVPI booster&m/c + wilwood adj prop valve.

Parted & Gone-'88 T-bird Sport, 351W swap, ported GT40 heads

HO cam

Reply #33
Quote from: TurboCoupe50;279759
If it's SD you aren't going to be able to idle a "F" cam below 1100 and keep it running... It'll just load up and eventually die...


it will idle all day long at 8-900
Currently Birdless but never Foxless

86 Mustang GT

HO cam

Reply #34
Quote from: Sick88Tbird;280702
It sounds INCEDIBLY unhappy.  Speed density will allow some interesting cams to idle and rev...probably is they run rich at idle, go full rich too soon and you end up going lean as the RPM increases.

Just mass air the thing...it's stupid cheap and easy.  That sure doesn't look like a GT40 intake...looks like an Explorer intake.



it runs great actually. he is going MAF, one day, but not now.

an explorer intake IS a gt40 intake my friend. theya re the same, just the outside is cast different
Currently Birdless but never Foxless

86 Mustang GT

HO cam

Reply #35
An Explorer intake IS NOT the same as a GT-40 my friend.  The GT-40 intake flows more and will support more power than an Explorer/Cobra intake.  Not a guess, a proven fact.
Project 3G: Grandpa Grocery Getter-'85 Crown Vic LTD 2-door, 351W with heavily ported/polished GT40 heads, heavily ported/polished Typhoon Power Plus upper & lower intake, Comp Cams 265DEH retarded 1*, FAST EZ-EFI, HD T5, 8.8" 3.73 trac lock with extra clutches, 3G alt. swap, '99 CVPI front brakes, '09 CVPI rear disc brakes, '00 CVPI booster&m/c + wilwood adj prop valve.

Parted & Gone-'88 T-bird Sport, 351W swap, ported GT40 heads

HO cam

Reply #36
well then i guess evry person who i have ever seen or heard say anything about them is a liar.
Currently Birdless but never Foxless

86 Mustang GT

HO cam

Reply #37
The Explorer,Cobra,and GT-40 all flow very close to the same numbers.Not enough difference between them to really matter.The Cobra and Explorer are cast versions,the GT-40 is a tubular intake.They all share the same lower intake.The Explorer doesn't have the provision for the ATC sensor,the Cobra and GT40 do.No other intake is the GT40 except the GT40,although internally,they are nearly identical.I'm using the Explorer intake right now.
'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..

HO cam

Reply #38
Quote from: blackcougar71;280061
couldn't you add a vacuum pump and that would fix your idle problem when using a larger head/cam /intake or forced induction on a sd setup?


wow
go engineer that>easy. integrate it>hard

HO cam

Reply #39
Quote from: Dougy_Fresh;280870
well then i guess evry person who i have ever seen or heard say anything about them is a liar.


wow, right to instant dick mode, huh?  There is a difference, and if the people you talk to don't know...well that's too bad for them.  The cast explorer/cobra upper will NOT flow as much as the tubular GT40 uppper. 

How about you try not to be an aggitator, and take the advice of people who know.
Project 3G: Grandpa Grocery Getter-'85 Crown Vic LTD 2-door, 351W with heavily ported/polished GT40 heads, heavily ported/polished Typhoon Power Plus upper & lower intake, Comp Cams 265DEH retarded 1*, FAST EZ-EFI, HD T5, 8.8" 3.73 trac lock with extra clutches, 3G alt. swap, '99 CVPI front brakes, '09 CVPI rear disc brakes, '00 CVPI booster&m/c + wilwood adj prop valve.

Parted & Gone-'88 T-bird Sport, 351W swap, ported GT40 heads

HO cam

Reply #40
i'm not trying to aggitate anything, and what makes you think you know more than me?
Currently Birdless but never Foxless

86 Mustang GT

HO cam

Reply #41
They're not saying they know more than you, but these guys really know what they are talking about. Most of 'em have been around these cars longer than you and I have been around, and spent many days and months researching and applying their ideas to these cars, there is no point in arguing who is right/wrong. This forum is not a competition of who knows more, they are just trying to give you FACTUAL advice. And that is that... A gt-40 and explorer intake are different.
FOXLESS!!

1994 Lincoln Mark VIII


HO cam

Reply #42
explorer and gt-40 intakes are very close. The tubular intake is better and alot more expensive. As far as price goes, I would buy a new chrome cobra upper rather then a tubular upper.

It wouldn't bother me to call explorer stuff gt-40. At that point your splitting hairs. Its like calling a 302 a 4.9 liter, even though that is what it is.

Your buddies mustang will idle if you put MAF on it.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

HO cam

Reply #43
it idles now, all day long if he wanted it to
Currently Birdless but never Foxless

86 Mustang GT

HO cam

Reply #44
There IS a downside to the tubular GT-40 manifold......There aint a lot of meat on it to port.....
-- 05 Mustang GT-Whipplecharged !!
--87 5.0 Trick Flow Heads & Intake - Custom Cam - Many other goodies...3100Lbs...Low12's!