289/302w power/mod questions - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
» Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Windsor 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 10-24-2003, 23:59   #1 (permalink)
Registered User
 
Join Date: Jun 2003
Posts: 127
289/302w power/mod questions

I've got a 289w (well at least I dont think its a 302) that puts out around 105 rwkw@4200rpm during the middle of last summer on a dyno run with a little pinging. It seemed to be running very rich the whole way through the run.

I was wondering if this seemed normal given the following mods, and what kind of ball park I'd pick up with a set of headers (over stock log manifolds) and maybe a change of intake (possibly to a stealth?).

Edelbrock 1406 (600 cfm vac sec electric choke)
Holley blue fuel pressure reg
1/2 in phenolic carb spacer
Weiand 7515 X-cellerator (single plane)
MSD 6a box
MSD Pro billet diz
MSD blaster 3 coil & wires
K&N filter 14x2in
Probably stock heads/cam

Does anyone know what kind of HP the stock mechanical fan chews, and whether a dual electric setup like the AU would be enough to cool it?
C0V3R is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-25-2003, 00:34   #2 (permalink)
Are we there yet?
 
Join Date: Dec 2002
Location: SA - The Drift State
Age: 30
Posts: 1,621
Re: 289/302w power/mod questions

Well, my totally stock, 145,000km EF Fairmont V8 ran 117kw, which is pretty high for a 165kw rated engine, normally 200kw AU2 XR8's run similar numbers. So 105rwkw is a pretty good number for a 289.

The thermo's will cool the car, you only need fans on your car when you are going below 30km/h, and I reckon the 2 large thermo's will draw more air than 1 engine fan.
__________________
95 EF Fairmont 5.0 - Heritage Green - 4 Speed auto with AU S5 - 3.23LSD - 17x8" LWT Wheels - King Superlows - 76mm Cobra MAF - 65mm throttle - BPT Underdrive Pulley Kit - 3" Mandrel-bent Lukey exhaust - Tinted Windows - MP3 CD player - White faced dials.

117rwKw - 15.47@89.9MPH
Aaron_EF8 is offline   Reply With Quote
Old 10-25-2003, 00:59   #3 (permalink)
Registered User
 
Join Date: Jun 2003
Posts: 127
Re: 289/302w power/mod questions

OK so I'm not doing to badly for a stockish 68 short block + heads.
Are the AU 6 fans the same as the 8's?
C0V3R is offline   Reply With Quote
Old 10-25-2003, 04:54   #4 (permalink)
Two SC 61's = trouble
 
ebxr8240's Avatar
 
Join Date: Jul 2001
Location: Penrith,nswAus/Morrinville.NZ
Age: 60
Posts: 6,360
Re: 289/302w power/mod questions

Yes and yes.. I prefere the E.L fans more cowling, bigger.Cost more though....
__________________
Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
.
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
Passengers, myocardial infarction material..
R.I.P Possum...
ebxr8240 is offline   Reply With Quote
Old 10-25-2003, 15:11   #5 (permalink)
Registered User
 
Volvord 784VC's Avatar
 
Join Date: Oct 2003
Location: Alberta, Canada
Posts: 29
Re: 289/302w power/mod questions

Mechanical fans will move a lot more air that electric fans, but that being said in most cases electric fans will provide enough airflow for cooling. In my car I tried electric fans with no success, I had two puller fans and one pusher and it was still boarderline for overheating, plus the electrical draw was excessive. I installed a single 16" mechanical flex fan and have never had a cooling problem since.

As for your carb, my experience with Edelbrock carbs is that they are jetted on the rich side from the factory. There is a very detailed jetting procedure on my website that will take you through the art of fine tuning the Edelbrock carb and getting maximum HP and economy. http://www.telusplanet.net/public/gi...delbrock_1.htm

The biggest factor limiting the 302W is the airflow restriction in the heads, both intake and exhaust, aftermarket heads are the real answer but even some minor porting on stock heads can show impressive improvements. Opening up the exhaust with larger pipes and headers will help a little but the main restriction is in the head itself. Addition of a good cam will help a lot also, take a look at my spec's, this engine dyno'ed out at:
290 HP {350 hp} @ 5500
311 Lbs/ft {370+lbs/ft.} @ 4500

Ford 302
Forged Pistons 10.5 : 1
Total Seal rings
Roller Rockers
Comp Cam Magnum 280H {230 deg @ .050", .512" lift}
Ported/Reshaped Heads (extensive)
Performer RPM intake
Edelbrock 600 CFM carb.
MSD-6AL ignition
Blackjack Long branch headers
2 " Dual Exhaust
Custom 3 core Radiator

Your current single plane manifold works best at higher rpm's, with your combination a dual plane manifold will provide better performance throughout, the Edelbrock Performer RPM is one of the best manifolds for the 302W.
__________________
Volvord 784VC is offline   Reply With Quote
Old 10-25-2003, 17:26   #6 (permalink)
Registered Abuser
 
Join Date: Aug 2003
Location: woop woop
Posts: 438
Re: 289/302w power/mod questions

Volvord
Good choice on the manifold (IMO) A single plane manifold sounds like overkill on Cov3r's engine with stock heads/cam and would actually be losing power at lower rpms where its needed. when we got our car it was running a sigle plane torker 289 and 625cfm carb on a stock motor and was a bit of a dog down low in the rpm range ,so i yanked it off and threw a factory 2 barrel dual plane manifold and carb i had lying around back on and instantly had better off line performance and fuel economy .Abeit losing a bit on the top end.
Volvord- Sounds like a youve got a sweet motor and around the same specs im looking at for the engine rebuild im doing at the moment.
Im intersted the specs on the heads your using , ive already spent around 15+hours porting my heads and next is step is larger valves....
Cheers Wozza.
302xm is offline   Reply With Quote
Old 10-25-2003, 18:06   #7 (permalink)
Registered User
 
Volvord 784VC's Avatar
 
Join Date: Oct 2003
Location: Alberta, Canada
Posts: 29
Re: 289/302w power/mod questions

Hi Wozza
I have reached the limit of the stock heads and am currently building a new engine, full blueprinted, forged 10.5:1, ARP bots and studs throughout, DSS main stud girdle, custom ported Edelbrock Performer RPM heads w/2.02" Manley racing valves, Perfomer RPM intake, 1 3/4" long tube headers, custom grind roller cam, roller rockers, etc... targeting 425+HP without power adders.
__________________
Volvord 784VC is offline   Reply With Quote
Old 10-25-2003, 18:10   #8 (permalink)
Registered User
 
Join Date: Jun 2003
Posts: 127
Re: 289/302w power/mod questions

Volvord - great site you have there.

I've known for a while that the manifold probably isnt ideal (got it with the car), and having all 4 barrels open to each cyclinder is probably overkill. It can still comfortably break the tyre (open end) loose, however the pull at ~1500-2500 in third is abit lacking.

What jet/rod combination are you running in your engine, I ask as whatever mine is running if it is close to yours its probably way rich. I've actually got a rod/spring/jet kit sitting here for a 1405 (all I could get in aus, same jets etc though) so I might have a fiddle.

One other thing to notice is according to that manual I probably have low fuel pressure. It seems to sit at 2-3 psi, which is probably too low. It appears to have an oem pump. A "feature" I've noticed is that when the car sits for 3-4 days the fuel runs back into the tank and I have to crank for quite a while to get fuel back in the carb. Could this indicate a bad pump?

My engine pretty much always runs cold with the mech fan, I dont know precicely how cold but its always sitting in the low range of the guage.
C0V3R is offline   Reply With Quote
Old 10-25-2003, 18:24   #9 (permalink)
Registered Abuser
 
Join Date: Aug 2003
Location: woop woop
Posts: 438
Re: 289/302w power/mod questions

COV3r- it is on the low side but...
I would have thought low fuel pressure would be affecting high rpm when it wouldnt be able to supply enough fuel to the engine causing it to lean out
and the hard starting is due to low air flow at cranking speeds with the single plane manifold and carb i had the same problem when we bought our car
302xm is offline   Reply With Quote
Old 10-25-2003, 18:34   #10 (permalink)
Registered User
 
Volvord 784VC's Avatar
 
Join Date: Oct 2003
Location: Alberta, Canada
Posts: 29
Re: 289/302w power/mod questions

The following are the jets I am using, take into consideration I am at an altitude of about 4000ft

primary jets - .095 (1426),
rods - 70x52 (1452)
set-up spring - yellow 4"
secondary jets - .086 (1423)

What jets are you running?
__________________
Volvord 784VC 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 > Windsor 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Men's 5 most feared questions russellw The Pub 12 01-27-2005 05:29
XA/XB Coupe (list of noob questions) Truffles General Tech 5 10-12-2003 06:24
Ford Employee Chat Session - Submission of Questions Donut King The Pub 12 05-25-2003 17:53
General questions davocol Australian Falcons 2 04-29-2002 17:28
Questions, questions! Xeron General Tech 2 03-25-2002 01:24

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 02:13.



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.