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Thread: crossflow intake?
12-28-2004, 09:50 AM #1
How and where, if at all, does the crossflow intake benefit?
Like say on a 200 V-6 with Boysen reeds an' tight heads?
With 5 reed sys. or 7 reed? Where's the advantage?
12-28-2004, 11:28 AM #2Banned
- Join Date
- May 2001
- Lake Keowee, South Carolina
Are you talking about a Mercury intake that has been cross drilled, or an intake for a crossflow V6 OMC engine?
12-29-2004, 10:12 AM #3
Merc of course!
I thought I'd try drilling a 7 reed intake if thats gonna
gimme some speed or somethin' Whaddya think?
Does it effect a 5 reed intake more... I would think so!
Whats your thoughts?
12-29-2004, 11:05 AM #4
started with stock 2.4 175 hp
2.4 stock crank and piston no porting
150 ish compression (shaved the heads)
mod v.p. cross drilled intake with 5 pedeal worked cages
removed exhaust can and installed modified tuner
once we installed some 50's on air and 92's on gas bumped timming, runs like a spotted a$$ ape. running a little rich, turning a worked 24 chopper 7000 rpm's @ 74+ mph (gps) on a 1986 18' skeeter starfire fish and ski fully rigged.
i think the cross drilled helped the mid range and top end, mainly the mid, it has a lot more punch after 3000, and revs up faster, you will read in other posts that people feel that it hurts bottom end and is hard to get it to idel, i don't agree, idels fine, starts right up on fisrt turn of the key, maybe a small amount of bottem end is affected, but not enough to noticed. hope this helps
still fine tuning.
Last edited by fastskeeter; 12-29-2004 at 12:12 PM.
12-30-2004, 11:22 AM #5
Does anyone feel that it would be worth doing
this to a 7 pedal intake or is this redundant?
12-30-2004, 10:23 PM #6
I tried a factory cross drilled 7-petal intake (square hole) on a stock 2.4 200. I lost 400 rpm compared to a stock 5 petal intake at 6000 rpm. Everything else was left the same: carbs, timing.
Leave it for 7000 rpm and above.
12-31-2004, 11:03 AM #7
I think I have my answer! Thanks much!
12-31-2004, 11:39 AM #8
I have a factory cross drilled 7/14 petal intake on my 2.4, idles like s*** at about 1600rpm, wh 15's, and hole shot sux!!!
Originally Posted by T-REX