idi cam?

[5.0bronco]

im looking to get a cam for my 91 7.3 i know there are a few out there people offer for it but i was wondering if anyone has compaired them and as far as performance gains. All i do with this truck is truck pulls so im thinking i propably want a cam that performs better on the top end. Any advice would be greatly appericated.

Thanks ross

 

[icanfixall]

The typ4 cam was designed for the logging industry up in Oregon. It works well on any non turbo or turbo idi. It brings in bottom end and goes all the way up to red line. Read mt engine information. If I had the time and courage I would install one of these.

 

[5.0bronco]

i guess if im running high boost levels i would probably to have to have my pistons cut with that cam? i know the r&d cam bleeds off some of the compression for that reason. im running around 20psi now and just blew a head gasket.

 

[icanfixall]

A set of ARP head studs will keep the heads from lifting.

 

[5.0bronco]

i just ordered head studs from russ so i guess ill be good then

 

[TahoeTom]

http://www.ford-trucks.com/forums/1123673-dyno-day-v1.html
Here is a thread from FTE that has some cam comparisons if you can figure out what the graphs are showing.

 

[5.0bronco]

Also i was wondering what valve springs i should run? I ordered a cam from typ4 today. im looking to get 400+hp to the wheels so i think i might still have the pistons cut

 

[79jasper]

Comp 460's ring a bell.

Sent from my SM-G900R4 using Tapatalk

 

[racer30]

If you want 400hp at the wheels you will need more than 140cc of Fuel and 30 psi with one of R&D's cams....or the J2 cam I have that bleeds of a bit of compression. Cutting the pistons and coating the crowns will help...You will also need a bigger Turbo and Custom up pipes to get rid of all the exhaust gas and heat better than the stock system. You have some Money to spend to get to that goal.. Justin at R&D is the right guy for big power... there are several guys running his bigger stuff now and he can help you achieve you goal of 400 WHP.... I run 910's in my 7.3 with the J2 Cam they are a direct swap with a little shim work. From several chassis dyno runs from trucks in the past the general consensus is WHP can be calculated anywhere from 2.5 to 2.9 HP per cc of fuel... depending on running gear and several other mods to the Engine Boost and exhaust system components. Crank shaft HP is somewhere in the 3.2 to 3.5 HP per cc fuel depending on the same mods... using this mathematical calculations you can get an Idea what you need to get close to what you want.... I will be watching your build... I have plans for a 400 Crank shaft HP Engine soon.

 

[5.0bronco]

i was planning on running one of justins 180cc pumps and probably one of his turbos also, hes not taling orders now so ill have to wait a little bit

 

[Agnem]

I have a Super Moose in stock. 205cc's, but we can turn it down for you if you want.

 

[5.0bronco]

whats the rev limiter set at on that pump and how much is that pump?