Thinking about putting an RV Torque cam in my 93 f-150 4x4 5.0 for a little more grunt but not sure how much HP and torque i could gain with this addition. I know it varies with different configurations on the cam but not sure what else i would have to do to accompany this properly as in roller rockers ect. your thoughts....
The stock cam is an RV cam and just about anything you replace it with will push the powerband higher. Longtube headers and a swap to a smaller intake(Explorer or HO) will produce the best low rpm gains.
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Paul O
1990 F150 4x4 XLT X-Cab 5.0, 3.55, Comp 35-349-8, Flowtech LT's to 3" single, FRPP Mass Air Conversion
Under construction: '85 351HO, Dart Iron Eagles, 1.6 RR, Typhoon intake, Crane 444232, 24lb Injectors, TweecerRT, Innovate LC-1 wideband O2
1990 Ranger 2wd, 2.3 Briggs & Stratten, 5-speed, 3.08 gears, and now power steering!!
Thanks, I didnt know that it was an rv cam in it already. A friend of mine suggested putting a set of heads from an HO on it for handling higher revs better while pulling a heavy trailer.
5.0 HO motor uses the same heads as the truck motor so don't waste your time. You can only get so much grunt(low rpm TQ) from a 5.0 so if you want more overall power you pretty much have to utilize higher revs. And while the stock cam is an RV grind it's a piddly little one so there are better options. Find a 5.0HO cam or a '94+ truck roller cam and add 1.7 rockers to either, both of these will produce more power than what you got now and broaden the powerband. Add longtube headers and a conservative sized exhaust system and you'll get more gains. The other thing the 5.0 trucks really need is gears, 3.73-4.10 for better towing and overall performance with stock or slightly larger tires and even more gearing for bigger meats.
__________________
Paul O
1990 F150 4x4 XLT X-Cab 5.0, 3.55, Comp 35-349-8, Flowtech LT's to 3" single, FRPP Mass Air Conversion
Under construction: '85 351HO, Dart Iron Eagles, 1.6 RR, Typhoon intake, Crane 444232, 24lb Injectors, TweecerRT, Innovate LC-1 wideband O2
1990 Ranger 2wd, 2.3 Briggs & Stratten, 5-speed, 3.08 gears, and now power steering!!
Thanks for the fast reply. I do have shorty headers, K+N filter, no cats and dual straight pipes(really short), throttle body spacer, My gears are 3:55, i would change the rear end gears but its a 4x4, with 31 inch tires. I do have a miss though and cant seem to find where its coming from, just changed plugs and wires with dist cap and rotor. it did get alot better but it is still there and the timing is good. thats why i was leaning towards a set of better heads to get around changing a valve and getting some more out of it. what do you think? I appreciate any info cause the milage really is bad right now with the miss too at 11mpg with 50/50 hwy/city. on a 93 5.0 stepside reg cab. thanks again.
You need to recalibrate the speedo for the tires, then check the fuel pressure and pull the codes. Also make sure the wires for #7 and #8 are as far away from one another as possible, do not run them parallel or they will cross fire.
Changing gears in a 4x4 is expensive since you have to swap both axles, but it's probably the best thing you can do if you haul heavy loads a lot.
__________________
Paul O
1990 F150 4x4 XLT X-Cab 5.0, 3.55, Comp 35-349-8, Flowtech LT's to 3" single, FRPP Mass Air Conversion
Under construction: '85 351HO, Dart Iron Eagles, 1.6 RR, Typhoon intake, Crane 444232, 24lb Injectors, TweecerRT, Innovate LC-1 wideband O2
1990 Ranger 2wd, 2.3 Briggs & Stratten, 5-speed, 3.08 gears, and now power steering!!
With 31's and an overdrive transmission, your best bang for the buck will be gears. What size trailer are you planning on towing? I have an 89 with a 351 running 31" tires and installed 3.73 gears in place of my 3.08 and it made a world of difference. I would have gone to 4.10 but I have a c6 without overdrive. My next thought is to ditch the old 31" tires to get more revs. I put the gears and a crane 44232 cam in at the same time. I tow a 7000 lb trailer with mine and need all the help I can get.
Do you have a manual or automatic? Be sure to add a transmission cooler if you have an auto. $50 is cheap insurance for the transmission longevity.
Conanski already said it all, pretty much. I'm just here to back up what he already said. Correct sized exhaust and gearing is the key here. The 5.0 does just fine in a truck but you have to gear it right. 4.10's are your best bet considering you have OD.
5.0 HO motor uses the same heads as the truck motor so don't waste your time. You can only get so much grunt(low rpm TQ) from a 5.0 so if you want more overall power you pretty much have to utilize higher revs. And while the stock cam is an RV grind it's a piddly little one so there are better options. Find a 5.0HO cam or a '94+ truck roller cam and add 1.7 rockers to either, both of these will produce more power than what you got now and broaden the powerband. Add longtube headers and a conservative sized exhaust system and you'll get more gains. The other thing the 5.0 trucks really need is gears, 3.73-4.10 for better towing and overall performance with stock or slightly larger tires and even more gearing for bigger meats.
i think your not correct here.. the H.O uses the Gt40 heads and the trucks use the E7 heads? or was it depends on the year ?
It boils down to i dont think its enough truck for the pulling my holiday trailer, its 32ft long and 12ooo lbs. just plain too big for the truck i think.
i think your not correct here.. the H.O uses the Gt40 heads and the trucks use the E7 heads? or was it depends on the year ?
No.. the factory 5.0HO motor used the same E7 heads, the only 5.0's to get GT40 cast iron heads are the 96-97.5 Explorer/Mountaineer motor, the 93-95 Mustang Cobra motor, and one version of the Ford racing crate engine.
__________________
Paul O
1990 F150 4x4 XLT X-Cab 5.0, 3.55, Comp 35-349-8, Flowtech LT's to 3" single, FRPP Mass Air Conversion
Under construction: '85 351HO, Dart Iron Eagles, 1.6 RR, Typhoon intake, Crane 444232, 24lb Injectors, TweecerRT, Innovate LC-1 wideband O2
1990 Ranger 2wd, 2.3 Briggs & Stratten, 5-speed, 3.08 gears, and now power steering!!
It boils down to i dont think its enough truck for the pulling my holiday trailer, its 32ft long and 12ooo lbs. just plain too big for the truck i think.
Ahh yeah, that's PSD territory you don't haul something like that with an old 1/2 ton, not enough motor, trans, or brakes!!
__________________
Paul O
1990 F150 4x4 XLT X-Cab 5.0, 3.55, Comp 35-349-8, Flowtech LT's to 3" single, FRPP Mass Air Conversion
Under construction: '85 351HO, Dart Iron Eagles, 1.6 RR, Typhoon intake, Crane 444232, 24lb Injectors, TweecerRT, Innovate LC-1 wideband O2
1990 Ranger 2wd, 2.3 Briggs & Stratten, 5-speed, 3.08 gears, and now power steering!!
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Ahh yeah, that's PSD territory you don't haul something like that with an old 1/2 ton, not enough motor, trans, or brakes!!
