Lowend power: 212/218 vs 216/220 vs TR220/114.
#21
Originally Posted by marc_w
If I had to sum up the setup I'm after, I'd want a strong street/strip setup that can put down some good numbers, but still fall back on it's 'truck roots' if it has to.
#22
Originally Posted by Cal
I'd put in at least a TR220 114, maybe even the TR224 114....
#23
I wouldn't use overdrive for towing, but running empty or racing it would be OK. How much it gets lugged depends on the axle ratio also. In my trucks I've always had 4.10's or 3.73's.
#25
Thanks again everyone.
I should restate that the truck spends a lot of time between 1,500 and 2,500, not like the 2-3K like I quoted.
Would it be fair to rate the cams as far as idle quality at A4 idle speeds:
"smoothest"
212/218 high lift
212/218 low lift
TR220
216/220
"lopiest"
Big Tex - you gotta be rolling your eyes at me by now... I think you've stumbled across ALL of the odd cam questions/threads I've been in. Just trying to make absolutely sure I get what I'm looking for... mods are few and far between for me.
I should restate that the truck spends a lot of time between 1,500 and 2,500, not like the 2-3K like I quoted.
Would it be fair to rate the cams as far as idle quality at A4 idle speeds:
"smoothest"
212/218 high lift
212/218 low lift
TR220
216/220
"lopiest"
Big Tex - you gotta be rolling your eyes at me by now... I think you've stumbled across ALL of the odd cam questions/threads I've been in. Just trying to make absolutely sure I get what I'm looking for... mods are few and far between for me.
#26
Yeah, I've seen you all over.
Don't go any higher than the TR220. Personally, I'd choose the 212/218 high lift 115. Best mix of power and drivablilty. It should get by with stock tuning. You'll be pleased with the results. You'll need custom tuning with the TR220 and spin it to the low/mid 6000s to take advantage of all its power.
Don't go any higher than the TR220. Personally, I'd choose the 212/218 high lift 115. Best mix of power and drivablilty. It should get by with stock tuning. You'll be pleased with the results. You'll need custom tuning with the TR220 and spin it to the low/mid 6000s to take advantage of all its power.
#27
idle will depend on the LSA more, and all those r on a 114, except the LS6 replacement cam, which is a 115, which would be the smoothest... i still stand by my original cam, or something similar for that truck and ur needs...
#28
Total cam duration would be my main concern. The more duration the higher the powerband. Stock truck shift points are 5600 for 1-2, and 5200 for 2-3. You go with a big cam, you give up that really low power and move the power to an unusable rpm. Combining a lower total duration cam with a little higher LSA will assure you that it will work fine with stock tuning and keep more low end. Yet picking one with higher lift will allow you to gain more power without moving the powerband higher.
I'm running a 114lsa right now, but if I change cams, it will be to a traditional split on a 116.
I'm running a 114lsa right now, but if I change cams, it will be to a traditional split on a 116.
#29
Originally Posted by marc_w
Thanks again everyone.
I should restate that the truck spends a lot of time between 1,500 and 2,500, not like the 2-3K like I quoted.
Would it be fair to rate the cams as far as idle quality at A4 idle speeds:
"smoothest"
212/218 high lift
212/218 low lift
TR220
216/220
"lopiest"
Big Tex - you gotta be rolling your eyes at me by now... I think you've stumbled across ALL of the odd cam questions/threads I've been in. Just trying to make absolutely sure I get what I'm looking for... mods are few and far between for me.
I should restate that the truck spends a lot of time between 1,500 and 2,500, not like the 2-3K like I quoted.
Would it be fair to rate the cams as far as idle quality at A4 idle speeds:
"smoothest"
212/218 high lift
212/218 low lift
TR220
216/220
"lopiest"
Big Tex - you gotta be rolling your eyes at me by now... I think you've stumbled across ALL of the odd cam questions/threads I've been in. Just trying to make absolutely sure I get what I'm looking for... mods are few and far between for me.
#30
Originally Posted by equandt
I think a good choice would be the 212/218 115 LS6 replacement cam. In a truck, I would think you would want low end torque. The 212/218 cam should give you that. The benefit of the LS6 replacement cam is that it has some good lift so you'll grab some top end HP as well.
#31
Allrighty, I think I've got enough info here to keep me busy for a while... Thanks for everyones time.
I'll be sure to post back with what I go with, and how it turns out. (It'll be early spring)
I'll be sure to post back with what I go with, and how it turns out. (It'll be early spring)
#33
marc, the best thing you can do is take a very honest look at what you're going to be using the truck for, and how you like to operate the engine. Do you like to rev it or lug it? If you're going to be racing other trucks or doing sand dunes, put in the TR220 or even a TR224. If you're going to using it as a tow vehicle, leave the stock cam in there. Keep in mind even your stock cam is no slouch; it's the same as the stock fbody cam. Those other smaller cams aren't enough different from stock to be worth all the effort of a cam install IMO. Just an oppinion though from someone that has a tow vehicle and a racing vehicle and has installed cams.