Undecided on cam selection for street/tow SUV 5.3LH6
09-23-2017, 11:35 AM
#22
Then why are you here asking for cam advice? If you actually read my post, i said 5 hp/torque at part throttle. Yes, you will get more at WOT, but Nobody is towing a load at WOT everywhere they go...
If towing is the ultimate goal, and you expect 50 more hp/torque at part throttle a cam swap will leave you sorely dissapointed.
WOT will make you grin.but for better towing performance with a gasser, a blower is what you want.
If towing is the ultimate goal, and you expect 50 more hp/torque at part throttle a cam swap will leave you sorely dissapointed.
WOT will make you grin.but for better towing performance with a gasser, a blower is what you want.
09-23-2017, 12:23 PM
#23
Then why are you here asking for cam advice? If you actually read my post, i said 5 hp/torque at part throttle. Yes, you will get more at WOT, but Nobody is towing a load at WOT everywhere they go...
If towing is the ultimate goal, and you expect 50 more hp/torque at part throttle a cam swap will leave you sorely dissapointed.
WOT will make you grin.but for better towing performance with a gasser, a blower is what you want.
If towing is the ultimate goal, and you expect 50 more hp/torque at part throttle a cam swap will leave you sorely dissapointed.
WOT will make you grin.but for better towing performance with a gasser, a blower is what you want.
09-23-2017, 12:29 PM
#24
This... Hard to beat the stock cam for low end. Might be able to grind something with a little later exhaust valve closing and maybe a little earlier intake valve opening depending on pistons, but the gains would be hard to notice. You really don't want longer lobes for part throttle low RPM performance. If you're set on modifying it for towing, I might just mill the heads a little bit and leave valvetrain alone w/ exception of maybe pushrods. Probably be cheaper than a cam swap anyway. Swapping to any of the cams you mentioned will make towing worse.
09-24-2017, 06:26 AM
#25
Then why are you here asking for cam advice? If you actually read my post, i said 5 hp/torque at part throttle. Yes, you will get more at WOT, but Nobody is towing a load at WOT everywhere they go...
If towing is the ultimate goal, and you expect 50 more hp/torque at part throttle a cam swap will leave you sorely dissapointed.
WOT will make you grin.but for better towing performance with a gasser, a blower is what you want.
If towing is the ultimate goal, and you expect 50 more hp/torque at part throttle a cam swap will leave you sorely dissapointed.
WOT will make you grin.but for better towing performance with a gasser, a blower is what you want.
I choose this cam 212/218 .600"/.600" Truck Camshaft LSA 114
https://www.texas-speed.com/p-4925-t...-camshaft.aspx
This... Hard to beat the stock cam for low end. Might be able to grind something with a little later exhaust valve closing and maybe a little earlier intake valve opening depending on pistons, but the gains would be hard to notice. You really don't want longer lobes for part throttle low RPM performance. If you're set on modifying it for towing, I might just mill the heads a little bit and leave valvetrain alone w/ exception of maybe pushrods. Probably be cheaper than a cam swap anyway. Swapping to any of the cams you mentioned will make towing worse.
right now I want a vehical running on all 8 cylinders then evaluate its stockish abilities.
I have personally used quite a few cams in my tow rigs (2500hds) and find the "below 220" cams to be perfect. Gets quite a bit more power from off idle to even passing on the hwy....and i tow ALOT and heavy loads also. Both manual trans and auto. Wider lsas hurt quite a bit so i try to stay below 113 lsa and a fairly early icl of 108 to 109 and its fine.
09-24-2017, 06:49 AM
#26
TECH Fanatic
I think you'd be better off with the stock cam and go FI. The cams your looking at wont be good for future blower applications, the lsa is too low, the stock lsa is 114 which would be smoother than the 112 your looking into and make better power with FI...
09-24-2017, 06:57 AM
#28
TECH Fanatic
My bad, I missed that somehow...
09-24-2017, 07:20 AM
#29
I know where to get the ECM reprogramed DOD/AFM delete unsure of a mail order tune for preformance smallish cam?
I see a mail order tune for $200. is ECM reprogramed DOD/AFM delete usalley included in preformance w/ internal parts?
when reprograming is done to the 2007 model does the transmision control module has to be programed also ? where are either of these modules located. ECM certainley isn't inside engine area.
heres what a 112 sounds like a 114 wont be as rough truck sounds bad *** to me
I see a mail order tune for $200. is ECM reprogramed DOD/AFM delete usalley included in preformance w/ internal parts?
when reprograming is done to the 2007 model does the transmision control module has to be programed also ? where are either of these modules located. ECM certainley isn't inside engine area.
heres what a 112 sounds like a 114 wont be as rough truck sounds bad *** to me
Last edited by thebrain; 09-24-2017 at 07:44 AM.