installing a set of heads
07-16-2008, 11:26 AM
#11
D.R. THE PATHETIC DORK
Join Date: Jun 2007
Location: West Virginia
Posts: 30,863
RE: installing a set of heads
ORIGINAL: djsprinklesnjo
ok i found the stamping gtp, which is the gt40p heads. ok so now whats the difference, which makes more power etc etc.
i did read in one place that the gtp heads have a different spark plug angle and require a special header. this is the quote i found on it,
"I believe all 5.0 V8 Explorers got the GT-40P heads. Which are different from the GT-40 head. The P head has the spark plugs coming out at a different angle, which requires special headers. FRPP sells the headers you would need.
ok i found the stamping gtp, which is the gt40p heads. ok so now whats the difference, which makes more power etc etc.
i did read in one place that the gtp heads have a different spark plug angle and require a special header. this is the quote i found on it,
"I believe all 5.0 V8 Explorers got the GT-40P heads. Which are different from the GT-40 head. The P head has the spark plugs coming out at a different angle, which requires special headers. FRPP sells the headers you would need.
07-16-2008, 05:19 PM
#13
3rd Gear Member
Join Date: Dec 2006
Location: SW Missouri
Posts: 889
RE: installing a set of heads
Blue injectors are 24#. It could cause richness if you has a 19# mass air because the computer thinks it has 19# injectors but it has 24# and 24s put in more fuel. 25psi sounds real low should be around 40psi.
07-16-2008, 09:41 PM
#14
2nd Gear Member
Thread Starter
Join Date: Sep 2006
Location:
Posts: 372
RE: installing a set of heads
so should i try putting in a new 24lb maf sensor? but i cant see making the change from 19 to 24 and upping the fuel pressure would make that much of a difference.
also i should note that the car is wired with a painless 5.0 fuel injection harness. im not sure if it is the kit with the ecu or the previous owner is using an old ecu from a previous mustang. i will stick my head under the dash tomorrow and find out. mabe this might have somethingto do with it too.
also i should note that the car is wired with a painless 5.0 fuel injection harness. im not sure if it is the kit with the ecu or the previous owner is using an old ecu from a previous mustang. i will stick my head under the dash tomorrow and find out. mabe this might have somethingto do with it too.
07-16-2008, 10:03 PM
#15
Banned
Join Date: Dec 2005
Location: Lil' Rhody
Posts: 22,376
RE: installing a set of heads
considering a 19# injector only flows 80% of the fuel that a 24# injector does... you have basically allowed the motor to spray more fuel in, even though it doesnt know it.
Put your fuel pressure back up to 39 psi before you ****ing blow something up.. and intall a god damned calibrated MAF
We arent telling you this stuff for the hell of it.. STFU and just ****ing DO IT
Put your fuel pressure back up to 39 psi before you ****ing blow something up.. and intall a god damned calibrated MAF
We arent telling you this stuff for the hell of it.. STFU and just ****ing DO IT
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