upgrading the car = hand me downs for the truck
upgrading the car = hand me downs for the truck Looking at doing some upgrades to the car which would also allow the work truck to get some upgrades. Car is Iron ls2, fast 102/102, 240/242 cam, ported 243's, headers, all the standard upgrades etc.
Would be getting a set of tea tfs 225 heads to replace the ported 243's & btr stg2 cam (227/238 113.5+2.5). Goals here would be more power, better drivability, better mpg (thru the decreased overlap).
truck is stock 03 2500hd, lq4, 80e, 4:10's. Only upgrade thus far has been oem efans. Id like to put the ported 243 on here to bump compression, prolly the 8728 summit big torqinator cam (212/218 110+3), tbss intake, and headers.
Im hoping this would bump the mpg some, and allow 87 usage still while dd'ing. Any towing would be done with 93.
Would be getting a set of tea tfs 225 heads to replace the ported 243's & btr stg2 cam (227/238 113.5+2.5). Goals here would be more power, better drivability, better mpg (thru the decreased overlap).
truck is stock 03 2500hd, lq4, 80e, 4:10's. Only upgrade thus far has been oem efans. Id like to put the ported 243 on here to bump compression, prolly the 8728 summit big torqinator cam (212/218 110+3), tbss intake, and headers.
Im hoping this would bump the mpg some, and allow 87 usage still while dd'ing. Any towing would be done with 93.
TECH Senior Member
Joined: Jun 2016
Posts: 22,303
Likes: 3,619
From: Central Cal.
I think your truck will be overjoyed with 243's, the 212/218 cam, TBSS intake, and headers. It will MOVE!
It might even tow with the 87 gas. Put some in the tank, hook up the trailer, then go up the road enough to see what happens. If it starts pinging, go home and unhook. This way you'll know if you're safe with it. Or mix the two.
It might even tow with the 87 gas. Put some in the tank, hook up the trailer, then go up the road enough to see what happens. If it starts pinging, go home and unhook. This way you'll know if you're safe with it. Or mix the two.
I think your truck will be overjoyed with 243's, the 212/218 cam, TBSS intake, and headers. It will MOVE!
It might even tow with the 87 gas. Put some in the tank, hook up the trailer, then go up the road enough to see what happens. If it starts pinging, go home and unhook. This way you'll know if you're safe with it. Or mix the two.
It might even tow with the 87 gas. Put some in the tank, hook up the trailer, then go up the road enough to see what happens. If it starts pinging, go home and unhook. This way you'll know if you're safe with it. Or mix the two.
TECH Resident
Joined: Oct 2006
Posts: 993
Likes: 173
From: Euless, TX
I do not understand the obsession with 87. On an engine at 9:1 or higher static compression, I have never not gotten enough fuel mileage improvement tuning for 91 octane to more then offset its higher cost. Tuning for 87 is a false economy. GM kills the advance curve to run 87. By running 91 I can build more torque sooner and not have to rev the engine as high at part-throttle to get the same acceleration.
I do not understand the obsession with 87. On an engine at 9:1 or higher static compression, I have never not gotten enough fuel mileage improvement tuning for 91 octane to more then offset its higher cost. Tuning for 87 is a false economy. GM kills the advance curve to run 87. By running 91 I can build more torque sooner and not have to rev the engine as high at part-throttle to get the same acceleration.
TECH Senior Member
Joined: Jun 2016
Posts: 22,303
Likes: 3,619
From: Central Cal.
I said what I said about 87 so that if one HAD TO, they could squeeze by with it.
If I ran something borderline like this could well be, 91 would be my choice too.
Too bad 93 isn't available everywhere....
If I ran something borderline like this could well be, 91 would be my choice too.
Too bad 93 isn't available everywhere....
