marc_w

I've got a TR220 on a 112, Comp 918's, and TR hardened pushrods coming this week. Weather, family, and girfriend permitting - I'll be doing the install this coming weekend.

I went with the 112LSA because of the added midrage power I've seen when comparing the B1/T1 cams. (...I'm hoping to get the same benefit here). I also love a bit of lope, I've got HPT readily handy for tuning, and I knew I'd have a mild stall handy in case it's flat way down low.

I still have yet to find a shop that wants to touch my converter install, but that's not a huge priority with me right now. I want to get a good feel as to how the cam feels over stock.

I'm also real interested in how the extra 300cc in the 6.0L effects what I've heard about this cam in the 5.7's, (and the 5.3's). I still haven't come across anyone with a TR220 (or 224) in a 6.0.

Anyone want to wager a guess as to how the powerband will be? WILL that converter install be a priority with all the weight I'm tugging around? Is the 112LSA going to make AC and traffic my worst nightmare?

Or is it going to be even more docile than what the F-body guys say it is?


Note: You may notice I'm not running headers yet. They're coming in due time.

Also, I'm quite certain this is Gustin's old TR220. It made it's way through another member before I got it.

gomer

iTrader: (12)

I installed a B1 221/221 .558/.558 114lsa and a set of ported 6.0 heads on a SS truck a couple of weeks ago and I'll tell you.. you WILL have to have a stall. I would hate to see how bad the truck that I did the install on would have ran if it wouldn't have already had a 3000 stall in it. It actually took a fair amount of tuning to get the hot starts and idle really good on the truck since it has a "fly by wire" throttle body on it and there isn't a hole to drill out in it. Everything worked out good and the truck runs well.. and has a noticeable lope at idle.

marc_w

That's not cool.

I've heard the B1 in a number of cars (online), and I can't get over how HUGE that cam sounds, even in a M6 with the higher idle speed. Is it the extra 10* or so of advertised duration?

All of the TR220 cars I've heard sound pretty tame with a light cackle to the exhaust note.

What idle speed did you end up with?

From what I remember, Gustin was around 700-750 in his 5.3?

gomer

iTrader: (12)

I have the idle on the truck set for 850 in park and in gear... it could be lower, but we decided to leave it there to hide the lope a little. I ran a TR220 112 in my Z28 a while back and it idled about the same as the B1 on a 114.

marc_w

Oh crap. I didn't think it would be anywhere as near as bad.

I saw the nasty numbers you made with the cam. I think I'll be tossing on the same heads this springs.

BigTex

iTrader: (16)

Thats interesting. My 218 .563 114 cam just needed a bit more rpms and timing and it hasn't had an idle problem since the install. With the stock manifolds and muffler, I could tune out all lope, but with the ASM headers and flopro muffler, its a little more apparent. I ran my 218 cam on the stock converter for a couple of months. It didn't 60' any better, but it wasn't a dog off the line either. I think the comp XE and TR lobes are a little better than the lunati B1/T1 lobes for idle.

I don't think you'll have much of an issue with the TR220. Thats a pretty good choice. I've got a 224 .581 114 that I've been tempted to run just to feel the difference.

marc_w

Cool, thanks Tex.

Yeah, I grabbed the TR220 on a whim. I figured I need a decent 'baseline' cam to try out and see where I want to go...

gomer

iTrader: (12)

I've had the TR220 and B1 cam both in my car and I agree that the quicker ramps of the TR cam makes for a much better idle than the B1 cam. Just as an example, comp's X-er 220 .581 has 220* of duration @ .050 and an advertised duration of 269*, where the B1 221 .558 has 221* @ .050 and an advertised duration of 280*!! Thats 11 more degrees of advertised duration, the X-er's have a MUCH quicker opening and closing rate. I bet a X-er 220/220 .581/.581 114lsa 110icl cam would make a DAMN good truck cam.

2bseen

Gomer put this cam in my truck and without tuning it would not run, when you put the truck in gear it died even with a 3k stall.

Sport Side

iTrader: (6)

It might not give the tq requirments needed for a 5k+ lbs truck, but I dont think that a TR220 would overcam a 6.0L. Would it?