YO-EL

iTrader: (6)

I had to edit this as I found out this info on my set up..

My AFR 205's are milled to 62cc..
My A&A forged short block came w/ notched Diamond pistons 2-3 cc & valve reliefs..

So, basically thoughts on changing the existing cam 224/228 to the G5X3, or possibly something inbetween....

nikon1999

iTrader: (22)

im not sure of the exact specs of the g5x3, but i believe my cam is bigger, i have untouched 205's w/no issues

spazzyfry123

iTrader: (4)

According to the MS3 vs G5X3 thread that's a billion pages long...Yes, that combo will work without having to fly-cut.

1998SuperSportCAMARO

find out what max lift is on those 205's. i know the 225's is at .600 with stock internals.

JakeFusion

iTrader: (7)

???

What are you talking about? The springs' max lift? I'm not sure what internals have to do with max spring lift. Also, lift has nothing to do with piston to valve clearance if that's what you're saying.

Anyway, the G5X3-114 has about .080" intake clearance with 59cc AFR 205s and the 112 has about .060" on average. So any AFR 205 head milled .042" or less will work (but I'd check if you mill it down any, and I suggest you mill to at least 62cc).

N4cer

iTrader: (11)

Check specs with it on a 112 though. No sense in getting it on a 114 unless you're spinning it to 7k+.

hammertime

iTrader: (1)

I think he might be meaning that clearance would be less because of the larger valves (2.08/1.600) as opposed to the 2.02/1.60 valves found in 205 heads. But that is going to vary with durations, so I don't know...

And yes, definitely get them milled. If you need to notch the pistons for valve clearance, especially with the larger valves, do it.

pianoprodigy

iTrader: (1)

You'll have less-than-desirable quench unless you mill. The LG recipe is 59ccs and a Cometic .040 from what I can tell.

DONAIMIAN

iTrader: (18)

Are you kidding me, this was just gone over in a thread a couple of days ago.

SSilverSSurfer

iTrader: (8)

YO-EL

iTrader: (6)

link please..

DONAIMIAN

iTrader: (18)

Im not gona link you search for it your damn self. LG comes in and says everything you need to know about that cam and thoes heads.

eamador11

yes, but why would you not mill? compression is your friend. wish i knew that before I milled mine only .020

N4cer

iTrader: (11)

Everyone is always scared to flycut. I was. For no reason. I was scared of the cost. Well, it only ran me one old head, and $139 for the tool. And about 20min of cutting time. So basically, people are not milling heads and are spending money and not gaining max hp out of them because they are scared of the word "flycut". Ooooh. It's Halloween. I think I'll dress as the Isky Piston Notching tool.

Tony Mamo @ AFR

iTrader: (13)

That was worth a chuckle this morning....LOL

Can it fit and is it the right combination are two different things altogether (which has also been touched on many times before).

The X3 is fairly sizable and needs more static CR to be effective (as in mill the heads to 59-61 cc's depending on driving habits and available octane).

A smaller cammed set-up with milled heads will have way more "area under the curve" (more bottom end and midrange grunt) with similar peak numbers to the larger cam with lower compession. At that point WHY even install the bigger cam if that is the case?? To be reasonably effective the bigger cam needs more compression (which typically requires notched factory or aftermarket pistons)....THEN you can put up some big numbers and have decent midrange TQ as well. It is simply a much better overall package with the higher static (and ultimately dynamic) CR #'s.

The bigger the cam the more important increasing the static CR becomes....dont lose sight of that very important fact or your buddies car with a better thought out combination that has way more drivability and knocks down 5 more MPG will also leave you for dead at the dragstrip and thats no fun when your car is the one that sounds like a racecar...

Tony M.

YO-EL

iTrader: (6)

edit post..

N4cer

iTrader: (11)

Those guys are retards because they should be crying. They just spent tons of money on possibly the best combo out there, and were too pussified to flycut and mill to get the maximum performance from them. Did they wear their helmets on the way to school in that short yellow bus?

pdd

iTrader: (3)

YO-EL

iTrader: (6)

Let me repost:
I had to edit this as I found out this info on my set up..

My AFR 205's are milled to 62cc..
My A&A forged short block came w/ notched Diamond pistons 2-3 cc & valve reliefs..

So, basically thoughts on changing the existing cam 224/228 to the G5X3, or possibly something inbetween....

Thanks..

N4cer

iTrader: (11)

I can't see where that'd be any problem whatsoever. But don't count on my word. Make sure to clay it just to be 100% sure.

I only cut .070" out of my pistons with 57cc 243 castings and 2.00" intake valves, and I am above the recommended .080" clearance (I have .083").