02SOMLS1WS6

I just ordered my cam for my D1SC build. The specs are 226/234 114 .598/.602.

What do you guys think about this cam for my procharger build? Some big lift numbers but I was told I didn't have to worry about fly cutting the pistons.

02SOMLS1WS6

I left out a key piece of information, this is going in a stock displacement/stock heads LS1.

180ls1

iTrader: (4)

Maybe not ideal in my mind but it should work well. Just make sure you run a good spring because aggressive lobes + boost trying to hold your valves open will be stressful on your valvetrain.

02SOMLS1WS6

It should be on its way so I hope to get it put in soon and will let you know how it turns out.

Keep the opinions coming.

intenseblue

iTrader: (1)

First cam that popped in my mind before opening the thread was a 228/236 114LSA

mattster03

iTrader: (22)

is there any advance/retard ground into the cam? there are more ideal choices out there...

intenseblue

iTrader: (1)

Examples?

mattster03

iTrader: (22)

the exhaust duration being 8 degrees greater than the intake duration is good. but the problem is, assuming no advance/retard built into the cam, is that there is an opportunity for boost to be leaked out because of the overlap of the cam. this can be calculated by:

(int dur + exh dur) / 2 - (LSA*2) or (226+234)/2 - (114*2) = +2

typically for a good procharger cam you would like to see this number at 0 or negative. One of my favorite blower cams is the Futral F7 which has the following specs:

224/230 114lsa which has a overlap of -1

that said. there are cams with good amounts of overlap that make awesome power. for intance, the EPP blower cam is:

232/240 115lsa which has an overlap of +6

So I'm sure the OP will have no issues with the cam, and I think it will make good power. In addition it does appear that it will have adequate PTV clearance for unmilled head and OEM gaskets.

intenseblue

iTrader: (1)

Got ya... that slipped my mind.

intenseblue

iTrader: (1)

I would try this in the FI forum though. One of the most popular sponsors that do turbo setups have mentioned at one time or another in a large debate that increasing overlap by increasing duration has always made more power.

02SOMLS1WS6

Thats a lot of great info with the technical to back it up. I guess I hope it works out real nice as it is speced out between the normal grinds on the market and the larger EPP set up. I will find out how much retard or advance is built into it.

STAR

iTrader: (1)

That's a great cam! Keep in mind that centrifigul blowers work well with a wide range of cams, unlike say a turbo application. I've also read that some overlap helps keep the exhaust valves cool.

tpooleATL

Blowers like split pattern cams with the exhaust duration being 6-10 degress more than intake (rough estimation) and a wide lsa. There is no perfect blower cam, but there are cams that will perform like a$$ under boosted applications. Yours is not one of them so you should have nothing to worry about.

02SOMLS1WS6

My cam has shipped! I want to thank Geoff at EPS for getting this cam out in a hurry as my build time line is a short one...trying to make power tour with the new power. For all the stuff I have read on here about him not shipping when he says that he can or taking to long.....just not the case for me.

I trusted him with is knowledge and cam grinds with my build. I am sure I wont be disappointed.

garygnu

I thought those cam spec looked familiar.do you have bigger injectors and fuel pump?

02SOMLS1WS6

Yep a lonnies dual pump in tank set up is on the way with flow matched 60lb injectors. How do you like your cam? Similar specs?

LTXBOI

iTrader: (2)

Im in the same boat but with a ltwon..try it in the F.I section for a concrete answer and check people sigs to determind what advise is proven and helpfull..I hate it when people with no real F.I exp does a copy and paste move and think there knowledgable.."to smart for there own good"

hahhaaa i know a few of you are itching to respond to me but lets help him along with me find a good blower cam..

02SOMLS1WS6

Call Geoff at EPS, he can help you out. Dont expect quick responses to email, a call is best.

XBuford

Anyone have an LSA 117 or 118 with -9 to -11 overlap on a ProCharged car?

Looking for little to NO lope, stick with stock converter and ton of mid range power which my stock cam provides... I just need to get rid of the DOD stuff

Car is a G8, P1SC, 9psi, stock converter, and 560rwhp right now. Only looking for 40hp.

PREDATOR-Z

As with everything else in life, the trick is not to avoid overlap but actually to use the right amount for the application before you start seeing diminishing returns. More overlap WILL produce more power, until, it bleeds off more than extra boost can compensate. for street, my experience is around 6>7 positive degree of overlap is very manageable under boost. Also valve events can be tailored to be more tolerant by placing the overlap more evenly distributed from TDC (less exhaust bias)
To the OP, PTV clearance has little to do with lift values at .050. Just ask yourself WHEN does max lift occur in the stroke? you'll see what I mean.