Advice wanted on 302c - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
ยป Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Cleveland Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 12-08-2005, 22:45   #1 (permalink)
Ford Member
 
bernie's Avatar
 
Join Date: Sep 2003
Location: Victoria
Age: 44
Posts: 65
Advice wanted on 302c

Just after some advice on what the best bang for buck on a budget for a 302c. It is in a XC GS with a single rail behind it, and was rebuilt 7 years ago but has done only 20 000km since. It was a quality rebuild, with all the block prep and machining work done as you would expect. It got new forged pistons and was properly balanced.The standard 2v heads were cleaned up and got new standard valves (unfortunately no hardened seats). I am unsure what cam it has currently, but Im sure its not a standard grind. All valvegear is standard, as is the intake manifold but a 4brl quadrajet sits on top. It has a set of HM headers.

What Im wanting to know is what top end mods would be best suited to a solid and well balanced 302c bottom end, including a cam change. Im not chasing nonsense hp gains, but want to extract the best I can without donating a kidney to pay for it.

Looking forward to hearing your responses
bernie is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 12-08-2005, 23:53   #2 (permalink)
The Deputy Dogg.
 
falcon coupe's Avatar
 
Join Date: Nov 2003
Location: Vic/Berwick
Age: 44
Posts: 1,862
Re: Advice wanted on 302c

Bigger cam, better manifold and holley dp, matched by a suitable exhaust/extractors should wake it up.
It would help if you gave us the full topend setup including the above parts.
__________________
Member of the the Trans Pacific Moderator Tag Team
falcon coupe is offline   Reply With Quote
Old 12-09-2005, 00:07   #3 (permalink)
74 XB Fairmont
 
brenx's Avatar
 
Join Date: Sep 2001
Location: Cranbourne, Vic
Posts: 5,113
Re: Advice wanted on 302c

What diff ratio? A diff ratio change will make the biggest improvement.
__________________
XB Fairmont (street car) 11.07@123.02mph.
brenx is offline   Reply With Quote
Old 12-09-2005, 00:11   #4 (permalink)
Registered User
 
TruBlu351's Avatar
 
Join Date: Apr 2003
Location: Newcastle
Posts: 2,398
Re: Advice wanted on 302c

They like a full twin system exhaust too.

I'll bet there's 2.7 gears in the back......only good for the salt flats.
__________________
XE Falcon
393 Tremec TKO 9"
TruBlu351 is offline   Reply With Quote
Old 12-09-2005, 04:08   #5 (permalink)
Ford Member
 
bernie's Avatar
 
Join Date: Sep 2003
Location: Victoria
Age: 44
Posts: 65
Re: Advice wanted on 302c

Quote:
Originally Posted by TruBlu351
They like a full twin system exhaust too.

I'll bet there's 2.7 gears in the back......only good for the salt flats.
Yep 2.7 ratio it is. Its the Borg Warner LSD. How obtainable are different ratios for that diff?
bernie is offline   Reply With Quote
Old 12-09-2005, 04:17   #6 (permalink)
74 XB Fairmont
 
brenx's Avatar
 
Join Date: Sep 2001
Location: Cranbourne, Vic
Posts: 5,113
Re: Advice wanted on 302c

Stick a 3.23 or 3.5 ratio diff any you won't know what hit you. They are very common.
__________________
XB Fairmont (street car) 11.07@123.02mph.
brenx is offline   Reply With Quote
Old 12-09-2005, 04:23   #7 (permalink)
Ford Member
 
bernie's Avatar
 
Join Date: Sep 2003
Location: Victoria
Age: 44
Posts: 65
Re: Advice wanted on 302c

Quote:
Originally Posted by falcon coupe
Bigger cam, better manifold and holley dp, matched by a suitable exhaust/extractors should wake it up.
It would help if you gave us the full topend setup including the above parts.
Pardon my ignorance, Im no expert in these matters, hence my seeking advice. Im sure it is all factory spec apart from cam specs and the quadrajet carb, and I know it is still running the factory dizzy as well.
How do HM headers rate? I was going to fit a twin 2 1/4 exhaust.
What I was wondering is what brand inlet manifold to look at? the size Holley DP? and best cam? Would there be any real benefit with roller rockers for this package?
Cheers.
bernie is offline   Reply With Quote
Old 12-09-2005, 04:32   #8 (permalink)
74 XB Fairmont
 
brenx's Avatar
 
Join Date: Sep 2001
Location: Cranbourne, Vic
Posts: 5,113
Re: Advice wanted on 302c

Quote:
Originally Posted by bernie
snip
How do HM headers rate?
They rate very well they were factory on GT falcons.

Quote:
Originally Posted by bernie
I was going to fit a twin 2 1/4 exhaust.
spot on.

Quote:
Originally Posted by bernie
What I was wondering is what brand inlet manifold to look at? the size Holley DP? and best cam? Would there be any real benefit with roller rockers for this package?
Cheers.
A stock Ford squarebore 4 barrel works well if available. Otherwise a Edelbrock performer. Carb depends on what cam's selected. I wouldn't consider a cam change till you've changed the exhaust and diff ratio.Then go from there. A camshaft change may require a stall convertor change if it's auto?
__________________
XB Fairmont (street car) 11.07@123.02mph.
brenx is offline   Reply With Quote
Old 12-09-2005, 04:43   #9 (permalink)
Ford Member
 
bernie's Avatar
 
Join Date: Sep 2003
Location: Victoria
Age: 44
Posts: 65
Re: Advice wanted on 302c

Quote:
Originally Posted by brenx
They rate very well they were factory on GT falcons.



spot on.



A stock Ford squarebore 4 barrel works well if available. Otherwise a Edelbrock performer. Carb depends on what cam's selected. I wouldn't consider a cam change till you've changed the exhaust and diff ratio.Then go from there. A camshaft change may require a stall convertor change if it's auto?
Thanks Brenx, its given me something to work from. I will do exhaust, and diff ratio first, and take it from there.
Cheers.
By the way nice ride
bernie is offline   Reply With Quote
Old 12-09-2005, 04:58   #10 (permalink)
old B - new B
 
351cid's Avatar
 
Join Date: Jul 2005
Location: sunshine coast QLD
Age: 50
Posts: 890
Re: Advice wanted on 302c

the change of diff ratio will make a big differance.

the edelbrock performer inlet manifold is a tried and proven item for good low to mid range revs ,( should suit you spot on) these are very popular as well and have been for many years so you might be able to pick up a second hand one for a good price. even if it looks crappy, an acid dip will bring it back like new.
__________________
dave
`75 XB FAIRMONT SEDAN injected 351, toplaoder, disc brake 9", factory paint+ vinyl roof.
`03 BA XLS ute - lpg, auto, lsd, acid rush paint,
WWW.sunshield.biz
351cid is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Cleveland Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 17:42.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.