Im looking this cam for my 88 iroc TPI 350:
306/306 duration
447/447 lift
222/222 duration @ .050"
114 lobe separation
1600-5200 rpm power range

my question is will this cam work good with the TPI setup, and have good drivability? the gring is the old 327 350 hp cam

Thanks

 

I think that it would work well, but I think it would still be a little too much..unless you port your entire plenum and runners to open it up a bit.

If you are just looking for a couple more ponies, then yes. If you are looking to use that cam later on, no.

Also, this cam didn't come with roller engines, so it isn't going to really give what a roller engine wants...more lift. Look into getting a grind from CompCams or get one of the ExtremeEngergy cams. They would work better than what you are looking at.

Sorry, if that isn't what you wanted to hear.

 

thanks for the input. the 350 is out of a 93 truck so its non roller, i have the cam laying around and was wanting to put it to use as i am on a budget. I will be porting the plentum and the base and installing a set of SLP runners and also installing a set of headers.

 

The 306 duration is probably not at 0.006" lift
I would think a 222 degree duration cam at 0.050" lift would put the power range higher than 5200.

The TPI likes camshafts with a split pattern (more duration and probably lift too) on the exhuast side. I don't believe this cam is ideal for the TPI, but,... if you can tune it through the computer, and use a higher ratio rocker on the exhaust side along with the porting and bigger runners, it should work ok.

Hope your not using the truck heads.

Sometimes when your on a budget you've just got to go with what you've got. Hell, if it runs like crap you can always change it when the cash presents itself.


Consider the zz4 camshaft at about $100 bucks.
A 93 engine block is a roller block with factory roller provisions.

 

So.. how about this combo...which cam would you recommend

I've got a non roller cam 350 block bored .060 over,
hypereutectic forged pistons,
moly rings,
internally balanced rotating assembly
stock iron heads with 3 angle valve job and port/polishing
I will be porting/polishing the runners and entire intake assembly.
3" exhaust
shorty headers
unsure on which injectors to use. I'm still getting the parts together to build this engine.

I know that I will be needing to get a custom PROM done, anyone have an engine with a similar setup that I can look at your bin file?

 

If your heads have a weak exhasut port that cam will suck. Gotta have real decent exhaust flow to run a single pattern setup.

FYI

 

How about this cam:

214/224 duration
443/465 lift
112 lobe sep

 

214/224 is perfect duration #'s for a TPI....

222/222 @.050 would be good for a much shorter runner setup..

On the 214/224 cam the lift #'s are still low ..try to get the intake around .500 and the exhaust a little over,like .520 or so..

TPI setups do not like big duration /lift #'s on the intake...

 

thaks for all the input guys, I don't want to use the truck heads but would the heads off the original 305 thats in the car work better?

 

In retro spec, my 218int 224ex Comp XE cam was very very torquy and made good power with TPI but not so much with HSR.


I personally think for a stock/mild tpi car the XE262 is a GREAT cam.

If he runs a lift of .5 he's going to be pulling studs.

 

If you got good torque out of the XE262,than it sounds pretty good...I just figured that TPI likes average lift/duration #'s on the intake because of the long runners...I know its a subject thats been beat to death.

I would not use 305 heads on that 350!!!
That would probably be worse than the truck heads...
At least look around for a set of used L98 (Iron)...or for a little more you could get a set of ZZ4 heads pretty cheap (Same as Aluminum L98's)..than clean them up with a little porting before you put them in/along with a cam like the one mentioned above ,you'll have a decent performer that won't break the bank.

 

Would the 218/224 cam work good on a 305 with Torquer 305 heads? I am considering the 218/224 or the 212/218. The current cam is 202/206. Later on I may change the intake manifold.

 

You can pick up a set of iron L98 heads for soooo cheap and throw a little cash at them and have a decent budget head that'll be good for that cam and intake.

 

The intake will be your big choke point on that combo.

I think you would be charting new territory with that cam in a 305, however I dont think it hinder performance at all in a motor that breathes well.

Crane has a 214/222 cam that is pretty sweet also.

 

I wasn't aware that those heads would work with my 305. I thought the bolt patterns were different. How cheap are you talking? I can get the Torquer 305 heads for around $500-$600. Ominous, I will check out that cam, thanks.

 

The bolt pattern on the intake is different, but you can drill either manifold to fit either head it doesn't matter.

The 305 heads flow pretty well, I think they flow a little better than the L98 but I'm not sure. HOWEVER they only flow that well when you put bigger valves in them. The 305 Cyl bore is smaller so you have to have smaller valves so you don't hit the cyl wall.

The 218/224 was recommended to me by Comp for my 350. If you are talking a pretty all out 305 then yes it'd be a good cam, if you had the heads to flow and intake to flow with it.

Remember, a good cam on a 350, is going to act substantially bigger on a 305.