How is this HCI?

fox racer · Jul 15, 2004

ok, i was looking at hci combos lately and i came up with this:

AFR 185 (legal)
RPM II
CompCams XE266HR or XE274HR

does anyone have this, or use this? how do you think they will perform? im trying to stay emissions legal. (both cams are legal, i say the bigger one (274) in a magazine with an e-legal 347 aand this cam)

in case you need the specs on the cam, here they are:
266- dur: 266/274 @.050: 216/244 Lift(1.6): .544/.555 lobe: 112
274- dur: 274/282 @.505: 224/232 Lift(1.6): .555/.565 lobe: 112

please, no posts about... 'for a stock cor, go milder' just imagine, with the right stuff (gears, fuel etc...) would this combo work? or is one part of it too extreme for another? what do you think?

Grn92LX · Jul 15, 2004

What are you putting it on? A 302/306? I think that combo will rock assuming you have pistons that will allow clearence or fly-cut stockers. I'd go for a custom cam to make it all work good. All said and done, i'd guess 340rwhp on a 302 and you WILL need at least a 410 gear and a 75mm TB and 30lb injectors.

SlowGT · Jul 15, 2004

I've seen the XE274HR in a 306 w/Holley heads, systemax intake and LT headers running 12.90s with a marginal driver. Personally, I'd prefer the TrickFlow Street Heat over the Edelbrock. Objectively speaking, the parts you list should work well together. Don't forget your valve clearances.

Scorcher2005 · Jul 15, 2004

the trickflow street intake is more of the equivalent of the performer rather than the rpm though. If you wanna go trickflow than go track heat to replace the rpm.

Scorcher2005 · Jul 15, 2004

Grn92LX said:
What are you putting it on? A 302/306? I think that combo will rock assuming you have pistons that will allow clearence or fly-cut stockers. I'd go for a custom cam to make it all work good. All said and done, i'd guess 340rwhp on a 302 and you WILL need at least a 410 gear and a 75mm TB and 30lb injectors.

340hp at the wheels on a 302?!?!?! thats a lot for that combo, especially if this is gonna be a street driven, daily driver.

SlowGT · Jul 15, 2004

Scorcher2005 said:
340hp at the wheels on a 302?!?!?! thats a lot for that combo, especially if this is gonna be a street driven, daily driver.

Why does 340 seem so high?? He hasn't even told us about the exhaust, TB or air meter yet.

mob · Jul 15, 2004

i dont know too much, but afr heads are good, im not sure how the combo will perform togetther, should be good, i heard the trick flow combo gives big hp gains

DirtyD916 · Jul 15, 2004

ya it sounds like a good combo, but there might be too much lift for stock pistons and took much air flow for just a 302-306. I would go with the afr 165's if you are to stay with a stock or near stock displacem,ent. However if boring and stroking is in your future then yes the 185's will make a good set of heads for your hci. AS for your intkea, i think it all depends on personnal preference. There difference in performance from the top brands (holley, trickflow, edelbrock, cobra, gt40, etc etc) are so close in margin that it would be only a small notice in performance between the best and worst.

mob · Jul 15, 2004

on intake someone posted a really good explanation on them in the talk section forgot his name but he explained it really well, its a topic about intakes u probaly cant miss it if u look now

payupsucka · Jul 16, 2004

i made 310 with my combo on a 107 000 mile short block

AaronC · Jul 16, 2004

I made 340 RWHP/339 RWTQ out of my 306 with a small HiTech Motorsport custom cam 224/222 at .050 .555/.528" lift 111 LSA,113 ICL, and BBK 1 3/4 headers 2.5" off road H. With the autologic chip the cam drove like stock. It barely had any lope. It was a stealthy cam and would certainly be a great daily driver type setup. It wanted to shift around 6200-6300 RPM.

For an off shelf cam you can get a comp cam which i forget the grind # off the top of my head but it's a 224/224 .560/.560 110 LSA and install it at 110 ICL. Or it's bigger brother 230/230 .598/.598 110 and a 110 ICL. Both would be a great choice with the smaller a great daily driver cam and the bigger wouldn't do too bad either. My friend runs it and I would drive that car everyday. You'd be surprised what you can get away with when things are tuned correctly. I'm going to be building a 185/RPM2 setup at the end of the year with a cam of 233/228 110 LSA 112 ICL .607/.578 lift and it should lay down 380+ but shift out at 7000ish. It all depends on what you want.

Grn92LX · Jul 16, 2004

Scorcher2005 said:
340hp at the wheels on a 302?!?!?! thats a lot for that combo, especially if this is gonna be a street driven, daily driver.

You couldn't be more wrong. Look at Aaron's post Put some thought and the right parts into your combo and it will make good power.

fox racer · Jul 18, 2004

ok,lik i said before, image there is the supporting equipment. mass air, exhaust, 75 mm tb etc. how do you think this would do?

How is this HCI?

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