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EFI 5L ...i want more power 

 

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Posted: Sat Jun 18, 2005 1:47 pm 
Getting Side Ways
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Ride: Blueprint EB II Fairmont 5L

Location: Wanneroo
WA, Australia

nah...ive looked there...theres just a tag that says use "warning: high performance diff.. only use specified oil" and then theres a sticker on the housing from some diff shop...
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Posted: Sat Jun 18, 2005 1:54 pm 
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Posted: Sat Jun 18, 2005 2:02 pm 
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Ride: Blueprint EB II Fairmont 5L

Location: Wanneroo
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cheers 66 coupe..... :D Thats enough proof 4 me...
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Posted: Sat Jun 18, 2005 2:09 pm 
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My mates auto XR8 with 3.9 gears use to sit at 2700rpm with 16" rims so it doesn't seem quite right but you do have a better than stock ratio, even if it isn't 4.11's and I guess you can only go on what the previous owner told you.
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Posted: Sat Jun 18, 2005 2:31 pm 
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Ride: Blueprint EB II Fairmont 5L

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the diffs gettin stripped for a full rebuild in 2 weeks so ill see wat the gears say and then ill know 4 sure....i know the valiant ones have the ratio stamped on the crown & pinion......see wat hapns...
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Posted: Sat Jun 18, 2005 4:06 pm 
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veeate wrote:
i bought the car with the 4.11s in it...the fuel isnt too bad, but not that great either...it sits on bout 2600rpm doin bout 110kms on t he freeway
i would bet my right nut that your 4:11s are actully 3:45 as my xr pulls the exact revsthat was a badbet just checked on the way home :oops: actully 2200 lol but im not giving up my aggot

Last edited by v8fordman351 on Thu Jun 23, 2005 9:57 pm, edited 1 time in total.

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Posted: Sat Jun 18, 2005 4:11 pm 
Getting Side Ways
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Ride: au xr8 & 5.0 eb

Location: yarrawonga
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XR8Chic wrote:
have a look at my website... the section with all the mods I have done to my XR.... should give you a few idea's on stuff you can do.
your website is cool i need you to teach my missus how to be a car chick lol
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 Post subject: Re: EFI 5L ...i want more power
Posted: Sat Jun 18, 2005 6:29 pm 
Tyre Shredder
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Ride: EB V8

Location: Blue Mountains
NSW, Australia

veeate wrote:
What would be some advantagous power gains that wont break the bank as im a student.


try this for 'student budget' mods: http://www.diyporting.com/ Look at the 5.0 lower intake page and the project e7te pages. intake improves to 197 cfm and over with only metal removal on the stock parts. best bang for buck mod on the 5.0 IMO. then extractors & exhaust as funds permit.

for some cross references see the info on these pages:
http://www.workmonster.com/index.htm
http://www.mustangcentral.net/tech/e7.html
http://www.musclemustangfastfords.com/t ... FF_Greedy/ Power heads represent the best that can possibly be had from porting the e7te heads.
http://forums.stangnet.com/showthread.php?t=334773
Compare the power heads flow numbers (and mouses diy jobs with stock valves) to the expensive aftermarket efforts, especially at lower lifts . the intake chart is a good confirmation of the diyporting pages, and home porting the HO lower can make the HO intake comparable to the gt40/cobra/explorer. look further down to see maf & tb flow. a 5.0 turning 6000rpm with a near unatainable 100% effeciency will consume a peak of 302ci*6000rpm/3456=524cfm of air making the maf and tb fine as is unless you put in a very large cam and rev the motor harder than this or stroke it!


like any good student, do some research for yourself as to what suits you best on your budget. torque and midrange is more fun than hp on the street IMO, & it's cheaper to gain. do some searches typing things like e7te, you'd be suprised how much info is on the net.

 

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Posted: Sat Jun 18, 2005 8:33 pm 
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Location: Brisbane
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Mine has an 'auto', with 3.45:1 diff.
It sits on about 2200 rpm @110klms/hr.
So it makes sense that a 4.11:1 dif would sit on 2600rpm @ 110klms/hr.

 

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Posted: Sat Jun 18, 2005 10:35 pm 
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Location: Melbourne
VIC, Australia

I agree, with 3.08's the falcons sit on about 1700rpm at 100km/h.
3.23's sit on 2,000rpm at 100km/h
3.45's would sit on about 2,200rpm at 100km/h.
I reckon they would be at least 3.9's if not 4.11's.

Not that it really matters, as long as you're happy with them and the way the car drives, then there's no point calling a spade a shovel....
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Posted: Sun Jun 19, 2005 1:09 am 
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WA, Australia

Let me know the catch code of your EEC veeate,
Then I can inform you of how much TwEECer support there is.
Currently the best supported ones are 1DDC,2DDA,2DCA,3DEA,3DFA.

Pete.
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Posted: Sun Jun 19, 2005 12:32 pm 
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Where could i find the 'Catch Code' Pete??
the EEC is the unit behing the the passenger kick panel isnt it...
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Posted: Sun Jun 19, 2005 1:39 pm 
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veeate wrote:
Where could i find the 'Catch Code' Pete??
the EEC is the unit behing the the passenger kick panel isnt it...


Yes behind the passenger kick pannel. Just unscrew the mounting bracket and then look on the base of the EEC. There should be a sticker with a 4 digit code like the ones Pete listed. The code is also on a sticker mounted on the passenger side shocker tower in the engine bay although it often wears off over time.
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Posted: Sun Jun 19, 2005 8:23 pm 
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My Ghia has 3.45:1 and it sits on 2000 rpm at 100km/h.

 

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Posted: Tue Jun 21, 2005 3:05 am 
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Location: melbourne
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my eb xr8 auto has 3.7s in it 2200 rpm at 100ks
235/45/17in wheels

 

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347, crane cam, Pro topline 180 heads, Edelbrock victor efi intake, 80mm C&L maf, 75mm tb, 30lb injectors and 1/4 horse

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