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Author
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Topic: Here's My Combo
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mustangboy
Journeyman Posts: 30
From: Ont, Canada
Registered: Mar 2002
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posted 03-21-2002 12:30 AM
  
For those of you who asked about my car here it is.Its a J-code 68 Mustang coupe with the sprint package.I have a 69mach hoodscoop and the black CJ stripe up the hood.Its got a 68 .030 over 302 with a comp cams magnum292 .518L and [email protected],home ported 69 heads,wieand Xellerater intake,holley 650dp,hedman allumacoat headers,roller tip rockers all tied to a 4-speed toploader and a 4.11 locker rearend.I've had the engine together since the late 80s and its never given me any trouble.I ran a best of 13.69 at 100.94 and a 60ft of 1.97 this summer on a hot afternoon.I have Mcreary road stars on it for traction.I would like to go a little faster so feel free to pick away.Iam thinking of some more cubes but am on a tight budget.
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bluestreek
Gearhead Posts: 607
From: Athens,GA
Registered: Jul 2001
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posted 03-21-2002 02:05 AM
Hello and welcome mustangboy  Good job!! Looks like you have nice little Stang. The cheapest way to go faster and quicker is to loose weight.  After that it gets Xpensive!!
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n2oMike
Gearhead Posts: 719
From: Spencer, WV
Registered: Jan 2001
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posted 03-21-2002 06:12 AM
The camshaft is way too big for that engine.The Comp Cams Xtreme Energy 268H cam would be a good choice for your combination. It measures 224/230 @ 0.050" with 0.509"/0.512" lift, and a 110 degree lobe seperation. It would drastically pick up the midrange, allowing the car to take off better, yet still make power up to around 6300-6500 rpm. The rest of the combination sounds good. Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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mustangboy
Journeyman Posts: 30
From: Ont, Canada
Registered: Mar 2002
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posted 03-21-2002 12:05 PM
Thanks for the input N20 Mike.I built the engine around a buildup in HotRod in 1987 by Chris Kaufmann.The article was basically about getting 300hp out of a 9:1 302.The only thing I didn't do that they did was install 1.90-1.60 valves.They ended up getting 330-340 hp with 9:4 and 9:5 motors and listed 3 camshafts to use and mine was one of them.I have oftened wondered about the cam, it does seem like a lot of duration and I don't know the exact compression either.All I can tell you is it has flat top pistons and was a Performance Automotive Kit longblock.I bought it cheap off of a guy who totalled his car and the engine only had a couple hundred miles on it.The engine came in pieces in a box and the cam was missing.I talked to Joe Sherman and he also said it was way too much duration and he recommended the Isky 270 or 280 MegaCam he used in his 400hp 302buildup.It has the same lift but [email protected] and much different lobe centrelines of 108degrees exhaust and 104 intake.My cam has 110 on both sides.I have been planning on getting larger valves,if I did would it change your cam recommendations or make more use of the one I have.If I build a 351 would the cam I have be more suited to that(69-70)ported heads.My engine has pretty good manners but I thought I might be able to get more out of it.
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mustangboy
Journeyman Posts: 30
From: Ont, Canada
Registered: Mar 2002
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posted 03-21-2002 12:20 PM
testing
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chips67
Gearhead Posts: 537
From: louisville, ky, usa
Registered: Jul 2001
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posted 03-22-2002 12:01 AM
i definetly agree....cam looks way big for that setup. im thinkng with just the right cam you should be clicking off 12's all day. my cam sucks too....wish i had 108-110 lsa. ------------------
67 coupe, 650dp and rpm intake on 5.0 with afr 165 heads, 4 speed, 4.11's.....best so far is [email protected] in 1/8 mile with 1.79 60ft. time.
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mustangboy
Journeyman Posts: 30
From: Ont, Canada
Registered: Mar 2002
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posted 03-22-2002 12:14 AM
Hey I'd love to get into the twelves. I seem to have hit a wall with the combo the way it is.This isn't a daily driver so give me your ideas on camshafts or whatever,I'd love some new input but keep in mind I can't afford aftermarket heads,blowers or anything too exotic.
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chips67
Gearhead Posts: 537
From: louisville, ky, usa
Registered: Jul 2001
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posted 03-22-2002 12:33 AM
get a cam with a 108-110 lsa, 220-230 @ .050 duration and around .500 lift. i dont know much about that intake but i know i love the rpm intake on any street small ford. the carb is good, you can either do the pv, squirters, and jets for a better 60ft. or if you dont trust yourself tunning the carb, get a 2-step rev. limiter and launch wide open....then all you do is jet for best mph. the only thing is if you decide to go the 2-step route, be sure the car hooks.....slicks or et streets will be mandatory along with good traction device like cal-tracs or c.e. traction bars with good shocks. if you are currently running a trac-loc, it wont last and it will hurt your 60's. also if you have 28 spline axles and the car gets into the 12's and starts hooking you will need 31 spline axles and a new posi-device.........shew! the thing is the cam has got to go.....and i know whats gonna happen because we've all been there. just the cam will get you so close to 12's, you will do almost anything to run a 12. at some point you got to make a ton more horsepower or you gotta get traction to make the best of what you have. just get the cam...if it runs 13.2's on street tires everyone will know its a 12 second car on slicks. ------------------
67 coupe, 650dp and rpm intake on 5.0 with afr 165 heads, 4 speed, 4.11's.....best so far is [email protected] in 1/8 mile with 1.79 60ft. time.
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n2oMike
Gearhead Posts: 719
From: Spencer, WV
Registered: Jan 2001
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posted 03-22-2002 04:51 PM
Chips67 is 100% right on target. He was very recently right about where you are now. To run hard with the 4-speed, you will eventually want to work towards a 2-step rev limiter, Detroit Locker 9" rear, 31 spline axles and a set of small (26x8.5) slicks.For now, the biggest problem is the cam. A person who is used to recommending cams for 350 Chevy's or 351W's might want to recommend the Comp Cams XE274H (230/236 @ 0.050") but a 289-302 with the factory heads set up like yours and a top rpm around 6-6.5k rpm would work best with the XE268H (224/230 @ 0.050"). If the engine has a lot of miles on it, you might consider freshening up the heads... including making sure the valve springs are still up to the task. Good Luck! ------------------
Mike Burch
66 mustang real street
302 4-speed 289 heads
10.63 @ 129.3
http://www.geocities.com/carbedstangs/cmml_mburch.html
http://www.fortunecity.com/silverstone/healey/367
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
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mustangboy
Journeyman Posts: 30
From: Ont, Canada
Registered: Mar 2002
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posted 03-22-2002 06:44 PM
Chips67 it sounds from n2o Mikes reply like you made a cam swap to something smaller.Can you tell me your story?Some more details on my car it has an 8 inch detroit locker rear,competition engineering trac bars and 3 way adjustable drag shocks.I haven't really been able to play with the shocks yet but the car was in the consistant 2.0s range with them on.I ran a 1.97 with the old stock shocks so I was not impressed as they set me back about $450.The car did pick up somewhere I knocked off about a tenth but not in the 60 fts.Its hard to launch right now 3500 and it bogs 4000 and it spins.My intake is very similiar to the old Edelbrock Torker.They actually still make it only now its not a wieand its a team G made by Holley.
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chips67
Gearhead Posts: 537
From: louisville, ky, usa
Registered: Jul 2001
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posted 03-22-2002 10:38 PM
if you are getting 1.9-2.0 60ft times with regular radials you are probably maxed out. i witnessed a guy pull a couple 1.78's in a 1990 5-litre with tfs heads, an e-303 cam and 1.7 rr's......all on bfg radials...not even drag radials!!! that means the guy was really good at working the clutch. the only reason i did some homework on cams is because i got burned so bad on my last choice, now im stuck with it for a while. i had an e-303 which was like .498 lift, 220 duration with a 110 lsa to an f-303 which has .512 lift and 226 duration but a 114 lsa....car is noticably slower. sometimes cam profile trumps lift and duration and you dont wanna get sloppy when you are running n/a. the cam i got would probably wake up with a 150 shot and do better boosted than my e-303, but in the current setup it was just another lesson in life. like that hurst competition 3 speed shifter i bought when the car was a 3 speed.....hey, good luck. ------------------
67 coupe, 650dp and rpm intake on 5.0 with afr 165 heads, 4 speed, 4.11's.....best so far is [email protected] in 1/8 mile with 1.79 60ft. time.
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mustangboy
Journeyman Posts: 30
From: Ont, Canada
Registered: Mar 2002
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posted 03-22-2002 10:50 PM
My 60 fts are with G-60 -15 Mcreary Road Stars.My 60 fts with radials are about 3 tenths slower but I never really tried to get a great 60 ft time with the radials since I had the McCreary's waiting in the truck.Taking off with the radials is like driving on ice!I've got a used set of ET drags but I gotta come up with some rims to put them on.
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chips67
Gearhead Posts: 537
From: louisville, ky, usa
Registered: Jul 2001
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posted 03-22-2002 10:55 PM
et drags, see now you are talking.------------------
67 coupe, 650dp and rpm intake on 5.0 with afr 165 heads, 4 speed, 4.11's.....best so far is [email protected] in 1/8 mile with 1.79 60ft. time.
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bluestreek
Gearhead Posts: 607
From: Athens,GA
Registered: Jul 2001
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posted 03-23-2002 12:10 AM
quote:
Originally posted by chips67:
et drags, see now you are talking.
Be careful, E.T. Drags can break axles!!
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65_289
Gearhead Posts: 396
From:
Registered: Jul 2001
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posted 03-24-2002 01:51 PM
quote:
Originally posted by bluestreek:
Be careful, E.T. Drags can break axles!!
Very true. That's why I went with 31 spline Moser's to be sure! 
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