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Author
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Topic: Engine/drivetrain
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streetstang67
Gearhead Posts: 257
From: SC, USA
Registered: Nov 2002
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posted 02-19-2003 09:27 PM
   
I'm wanting to know what would be the best mod to my car, basically, to make it faster . I know gears are a good thing, and I will get some, but what else. I dont want something that is too expensive (like a supercharger). I'm not even in search for any more than 100hp. I want something that will make best use of the parts I have and something that wont kill gas mileage. Heres what I got:
'67 mustang
289 bored .030 over
stock (rebuilt) internals
holley 600 cfm carb
edelbrock performer intake
hooker header
h pipe
dual exhaust
c-4 transmission (soon to have shift kit)
2.79 open rear 8" (soon to have 3.55s)
What do you think would be the most cost effecient, but good, mod? Thanks
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66bluefb
Gearhead Posts: 396
From: Okla.City,Okla.
Registered: May 2002
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posted 02-19-2003 09:47 PM
I pair of ported heads and a cam will make a big difference.------------------
http://ourworld.cs.com/blagintony/myhomepage/auto.html
86-302 HO bored .030 over crank .010 under,
B-303 cam ,harland sharp roller rockers,
performer rpm intake, 625 carter
66-289 heads, ported with 160-194 valves, 3 angle valve job,
4 speed toploader, 85 duraspark ignition, pony interior,the who,the doors,and ccr full blast on the stereo
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Trailer_Trash
Gearhead Posts: 428
From: Alpharetta, Ga, US
Registered: Jan 2003
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posted 02-19-2003 10:15 PM
how much is "too expensive"? roller rockers can give you 10-15 hp[This message has been edited by Trailer_Trash (edited 02-19-2003).]
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V8 Thumper
Gearhead Posts: 3267
From: Orange, Ca. United States of America
Registered: Dec 2001
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posted 02-20-2003 06:09 AM
Taller gears are a definate must (steeper than 3.55's!), a posi carrier would be a bonus. 'I want something that will make best use of the parts I have'... spin that baby up; 289's can rev to the moon  . You've already got a decent carb, intake, and exhaust system, so the gearing will get you into your powerband quickly. For less than $200, an MSD 6A ignition box is a great all around performance value, dollar for dollar  ------------------
1965 GT coupe, 333ci aluminum headed/solid cammed stroker, four speed, 3.70:1 9" All Blue Oval, no blue bottle
http://mustangsandmore.50megs.com/V8Thumper.html
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69 Sportsroof
Gearhead Posts: 1141
From: Valley, Alabama, USA
Registered: Mar 2002
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posted 02-20-2003 11:39 AM
You can put in a bigger cam. Scoop just got Summit's versioin of Edlebrock's Performer cam for his 351 W. I'm waiting to hear how he likes it before I make my cam purchase. There's also the tried and true CompCams 270H. And like Brandon mentioned, roller tip rockers will help some. I dont think roller fulcrum rocker arms will fit under stock valve covers. Oh, for the shift kit, go with a Tans-Go kit.
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streetstang67
Gearhead Posts: 257
From: SC, USA
Registered: Nov 2002
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posted 02-20-2003 04:58 PM
quote:
Originally posted by V8 Thumper:
Taller gears are a definate must (steeper than 3.55's!), a posi carrier would be a bonus.
I plan on 3.55s b/c I dont want to ruin my gas mileage and top speed
'I want something that will make best use of the parts I have'... spin that baby up; 289's can rev to the moon . You've already got a decent carb, intake, and exhaust system, so the gearing will get you into your powerband quickly.
This is what I'm talking about: How can I put my intake, exhaust and 600cfm carb (to use all 600cfm) to get good out of what I already have. What do I need specifically to make this motor rev high without screwing something up?For less than $200, an MSD 6A ignition box is a great all around performance value, dollar for dollar
Thanks again...one more thing, just out of curiousity , exactly how much faster will I be?
[This message has been edited by streetstang67 (edited 02-20-2003).]
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Fastymz
Moderator Posts: 10683
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 02-20-2003 05:26 PM
How fast are you now?I'd do the 3.55 and posi.And the shift kit,and a mild cam. ------------------
SCOOP
oddly obsessed with big scoops on little Mustangs 2.26 60'S
14.9 @ 90.86MPH 65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede. https://mustangsandmore.com/ubb/Fastymz.html
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indyphil
Gearhead Posts: 642
From: Lafayette, IN, USA
Registered: Jul 2002
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posted 02-20-2003 06:54 PM
I agree with scoop,
with the stuff you mention the next step would be the rear gear, the shift kit, the cam or maybe even port matching (which is free if you have the tools and you do it yourself)Just a wild a$$ guess but from what other people are posting I would say you have a 15-16 second car. the gears, shift kit and cam should take more than a second off that. beyond that you are into the realms of diminishing returns Roller rockers may need tall valve covers, but they are nice. a more open exhaust (2 and 1/2 inch duals are the ticket for racing)
and obviously tyres are important. If the rear springs are sagging then when you come to the drag radials or slicks then you might get wheel hop problems. read the racing forum because they discuss all round performance as well as racing. You also mentioned gas mileage, the gears are gonna kill the gas mileage especially on the highway.
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streetstang67
Gearhead Posts: 257
From: SC, USA
Registered: Nov 2002
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posted 02-20-2003 08:34 PM
Say I got the shift kit and 3.55s in the rear (open) and eventually the cam:
1)What do you think I run now
2)with the shift kit and open rear w/ 3.55s
3)with that and mild cam (268 or 270)
Also, on top of that, how much would cut outs, slicks, and traction bars help?
I dont wanna be too picky or anything, but if you gave me actual number gains in the quarter, that would help . Thanks a lot
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Hell_Fish
Gearhead Posts: 637
From: Austin, TX.
Registered: May 2002
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posted 02-21-2003 09:12 AM
Its truely hard to say with numbers. 2 engines built the same will put out different numbers. When was your engine rebuilt? I wouldn't want to hot rod a worn engine. ------------------
Dustin C
"The Mopar Guy!"
56 F-100
Mech. for wifes 69 Mustang coupe
65 Plymouth Barracuda
70 Dodge Swinger
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68 S-code GT
Gearhead Posts: 993
From: Sayreville, NJ, US
Registered: Mar 2000
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posted 02-21-2003 12:50 PM
I guy at work was bragging how he took some kind of colon cleanser that gave him a lot of energy!  
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Fastymz
Moderator Posts: 10683
From: Reno Nv USA MEM#1240
Registered: Apr 2001
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posted 02-21-2003 01:49 PM
quote:
Originally posted by streetstang67:
Say I got the shift kit and 3.55s in the rear (open) and eventually the cam:
1)What do you think I run now
2)with the shift kit and open rear w/ 3.55s
3)with that and mild cam (268 or 270)
Also, on top of that, how much would cut outs, slicks, and traction bars help?
I dont wanna be too picky or anything, but if you gave me actual number gains in the quarter, that would help . Thanks a lot
Ok your car is real close to mine.I was running low 16's when I 1st got the car.
Then added a 625 carter an RPM intake and headers made the high 15's.Went to 3.40 gears and a posi lift bars a holley 600 and lots of questions I run a 14.9 all those times are at 4500 feet above sea level.
I'm putting in a mild cam and long tube headers and some sticky tires.I'll tell you what it runs this spring.I hoping to see low 14's. The 3.55 gears aren't going to help you out a lot with out traction.
I'd do the gears and posi 1st before adding any more power.Then get the traction down with the new gears,then start adding power.
------------------
SCOOP
oddly obsessed with big scoops on little Mustangs 2.26 60'S
14.9 @ 90.86MPH 65 coupe,351w,C4,Big Boss 429 hood scoop,8"3.40 TracLoc,Cragar SS,Black Suede. https://mustangsandmore.com/ubb/Fastymz.html
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