FlyingFinn

I'm going to tear the engine down for new bearings and ARP rod bolts etc and I would also like to have hardened pushrods. I tried to find out how much smaller base circle does Comp Cams 216/220 114 LSA cam have but found nothing. I will be using stock rockers with Comp Trunion upgrade, Comp "R" hydraulic roller lifters, Fel-Pro head gaskets (gasket set #CS9284), and heads are Patriot Performance Stage II CNC ported LS1's. Is 7.400" good to go or do I need longer on shorter ones? I'm familiar with the lenght checking procedure, but it takes 2 weeks or so to get pushrods from USA after I order them, so it would be great if can order correct lenght pushrods at the same time with everything else.

Thanks!
J-P

garygnu

get the push rod checker to get the right length.have you down loaded camquest6 from compcam?the best things or plans in life take time,but are wroth it.what the quickest way to mail stuff over seas? US post,UPS,FEDEX.are your heads milled?

vettenuts

iTrader: (4)

The Comp R's, per Comp, require adjustable rockers and require a preload that is a very tight tolerance. From memory, the preload requirements are 0.002" - 0.004".

FlyingFinn

You just saved me from spending huge amount of money to rockers! My parts were not shipped yet and I was able to change Comp R's to Comp OE replacement rollers

Garygnu: You're right, I will get the pushrod lenght checker. I have the camquest6.. Head surfaces are just smoothed to make sure they are straight. The fastest shipping method would be ups, about a week and I think I can wait that long.

garygnu

how are you going to tune the car when you get it together?

FlyingFinn

I think I'm going to send my PCM to madtuner to get safe starting point. Then get complete dyno-tune later. I don't dare to even start the engine with stock PCM program.

BlackNiteWS6

iTrader: (2)

I used the same cam on my '02 WS6 A4. I also had my stock 241's pocket ported and
only milled .10 off. I just used the stock LS1 rockers and lifters since the cam has very
mild lobes and you won't need to rev the motor past 6,300 rpm. I then moved on to 7.400 inch hardened pushrods. Just keep it simple and you'll be fine. BTW, i ran 11.77 @ 116.08 mph NA and 10.93 @ 127.71 mph on a 125HP Wet shot of nitrous. I hope i was helpfull.

FlyingFinn

That helped, thanks! I'm suprised that a 216/220 cam and bolt ons can get you into mid-high 11's! I think I will order 7.400" pushrods and lenght checker. If they are too long or short I will just sell them and get right ones.

BadgeZ28

iTrader: (28)

I am all for keeping it simple, but you have changed to many things IMO. I would do the adjustable pushrod and find the correct pre load length.

PREDATOR-Z

bingo :d

KILLERARMY

What's the deal Predator-Z? You're not taking pm no more.... SORRY FOR THE HIJACKING OF THIS THREAD FELLAS..