Fordmods Logo

poor performing falcon after mods? 

 

Page 2 of 3 [ 32 posts ] Go to page Previous  1, 2, 3  Next

 
 Post subject: Re: poor performing falcon after mods?
Posted: Fri Jul 31, 2009 5:53 pm 
Getting Side Ways
Offline
User avatar

Age: 35

Posts: 4316

Joined: 30th Oct 2006

Gallery: 18 images

Ride: Envi EF

Location: Grafton
NSW, Australia

-GAS-MAN- wrote:
Oh 25psi is perfect, your rim diameter is effectively changing your gear ratios,


Uhh probably not - 16s and 18s most likely had the same rolling dia, which means nothing changed there.

 

_________________

>>>EF Futura T build<<<

Top
 Profile  
 
 
 Post subject: Re: poor performing falcon after mods?
Posted: Fri Jul 31, 2009 8:09 pm 
Getting Side Ways
Offline
User avatar

Age: 35

Posts: 2517

Joined: 27th Mar 2006

Gallery: 1 images

Ride: FG MkII Xr6t Ute

Location: Brisbane
QLD, Australia

I am fairly sure the rolling diameter did very slightly increase with the 18's even though they had the right profile tyres. Likewise there would have been a decrease in diameter with less pressure; these would have contributed to a quicker ET no doubt. The point I was making though was that I got better grip with the 16's due to more sidewall, and then better grip again with less pressure.

Anyway back on topic with the thread; I only just noticed the power level - to be pulling that through an auto I am assuming the cam would be pretty big, I would definately say get it tuned and play around with the cam as per fordfreaks first post.

 

_________________

EVL098 wrote:
Cramping in the hand from having it on your Wang for an excessive period of time is a definate con.
Seriously do people google "f**k up modifications for Fords owned by Jews" and get linked straight to this site nowadays?

AU,factory fitted tickford kit/IRS, t5,Sports ryder/KYB: gone.

Top
 Profile  
 
 
 Post subject: Re: poor performing falcon after mods?
Posted: Fri Jul 31, 2009 10:06 pm 
Getting Side Ways
Offline

Posts: 6449

Joined: 11th Nov 2004

First off and i don't know why no one has pointed this out yet.
Your ET means s**t all, there are too many factors involved with the ET. You can't use it to gauge power.

What were your trap speeds?

If you have just jammed a cam in the thing chances are you have moved the power band up. combine that with stock gearing and over sized tyre/wheel combo and yes you car ET will suffer.
Top
 Profile  
 
 
 Post subject: Re: poor performing falcon after mods?
Posted: Sat Aug 01, 2009 1:25 am 
Getting Side Ways
Offline
User avatar

Posts: 887

Joined: 8th Aug 2006

Ride: Falcon

Location: Central Highlands
QLD, Australia

I run 16in rims with 225/50 tyres, no complaints.

 

_________________

97 EL Fairmont 4l OHC .Silver.
Exhaust: Pacemaker's, 2.5" exhaust and Hiflow cat
Intake: FRAM AIRHOG , EL GT snorkel
XR6 300kpa fuel reg Stg 2 Auto Shift Kit.6DJA ECU
PM in Qld looking too buy Toyota 4*4 SR5 Dualcab Hilux 91-97 with 2.8l diesel engine/5spd manual

Top
 Profile  
 
 
 Post subject: Re: poor performing falcon after mods?
Posted: Sat Aug 01, 2009 5:34 am 
Getting Side Ways
Offline
User avatar

Age: 37

Posts: 900

Joined: 14th Mar 2007

Location: Castlemaine
VIC, Australia

I had 18's, beside my factory 15's they were roughly 10cm's taller/diameter which thats normal then theres a huge difference, i was running the new ford stud pattern though, if that influences anything.

Sorry if ive angered anyone with my posts, ive gone in pretty hard with ideas that go against everyone elses and im lucky to not have been flamed :) so thanks for taking it well, hope you guys dont hate me, lol.

 

_________________

it can be fast and cheap,but it wont be reliable
it can be reliable and cheap,but it wont be fast
or you can be fast and reliable,but it wont be cheap

Top
 Profile  
 
 
 Post subject: Re: poor performing falcon after mods?
Posted: Sat Aug 01, 2009 3:13 pm 
Getting Side Ways
Offline
User avatar

Age: 35

Posts: 4316

Joined: 30th Oct 2006

Gallery: 18 images

Ride: Envi EF

Location: Grafton
NSW, Australia

Mate you were running the wrong tires if the 18s were 10cm!!!!!!!!!!!! taller than stockos!
Also new stud pattern?? WTF are you on about?

 

_________________

>>>EF Futura T build<<<

Top
 Profile  
 
 
 Post subject: Re: poor performing falcon after mods?
Posted: Sat Aug 01, 2009 5:53 pm 
Getting Side Ways
Offline
User avatar

Age: 37

Posts: 900

Joined: 14th Mar 2007

Location: Castlemaine
VIC, Australia

krisisdog wrote:
Mate you were running the wrong tires if the 18s were 10cm!!!!!!!!!!!! taller than stockos!
Also new stud pattern?? WTF are you on about?

Bought the car like that, it had the BA/BF stud pattern, i was too tired to think of what they were called, so i said newer, as in, newer then the E series s.p. :)

I know you increase the outter diameter so you can run a softer tyre, as you have a greater ratio of tyre cooling :)

 

_________________

it can be fast and cheap,but it wont be reliable
it can be reliable and cheap,but it wont be fast
or you can be fast and reliable,but it wont be cheap

Top
 Profile  
 
 
 Post subject: Re: poor performing falcon after mods?
Posted: Sat Aug 01, 2009 7:06 pm 
Getting Side Ways
Offline
User avatar

Age: 35

Posts: 2517

Joined: 27th Mar 2006

Gallery: 1 images

Ride: FG MkII Xr6t Ute

Location: Brisbane
QLD, Australia

I it was a typo and he meant 10mm....

haha....10cm, imagine that!

 

_________________

EVL098 wrote:
Cramping in the hand from having it on your Wang for an excessive period of time is a definate con.
Seriously do people google "f**k up modifications for Fords owned by Jews" and get linked straight to this site nowadays?

AU,factory fitted tickford kit/IRS, t5,Sports ryder/KYB: gone.

Top
 Profile  
 
 
 Post subject: Re: poor performing falcon after mods?
Posted: Sat Aug 01, 2009 7:36 pm 
Getting Side Ways
Offline

Posts: 1220

Joined: 11th Nov 2007

Ride: f6 rspec

Location: Sydney
NSW, Australia

taken from best time slips. first is with auto no cam in october last year.
r/t .959
60' 2.347
km/h 145.04

july 09 with manual and cam

r/t .298
60' 2.199
km/h142.33
Top
 Profile  
 
 
 Post subject: Re: poor performing falcon after mods?
Posted: Sat Aug 01, 2009 7:45 pm 
Getting Side Ways
Offline
User avatar

Age: 35

Posts: 4316

Joined: 30th Oct 2006

Gallery: 18 images

Ride: Envi EF

Location: Grafton
NSW, Australia

-GAS-MAN- wrote:
Bought the car like that, it had the BA/BF stud pattern, i was too tired to think of what they were called, so i said newer, as in, newer then the E series s.p. :)

I know you increase the outter diameter so you can run a softer tyre, as you have a greater ratio of tyre cooling :)


Yeh stud pattern still makes no sense, at all. Stud pattern hasnt changed for like 30 years - the OFFSET has changed... though it still makes no difference to a 1/4 run.... tyre cooling??? anyway..

I hope he meant 10mm skidder...

 

_________________

>>>EF Futura T build<<<

Top
 Profile  
 
 
 Post subject: Re: poor performing falcon after mods?
Posted: Sat Aug 01, 2009 8:01 pm 
Getting Side Ways
Offline

Posts: 6113

Joined: 8th May 2007

FORDom wrote:
taken from best time slips. first is with auto no cam in october last year.
r/t .959
60' 2.347
km/h 145.04

july 09 with manual and cam

r/t .298
60' 2.199
km/h142.33


unusual.... you gained 1/10th on the 60 footer, and lost 2/10th's by the end of the track :?
Top
 Profile  
 
 
 Post subject: Re: poor performing falcon after mods?
Posted: Sat Aug 01, 2009 8:07 pm 
Getting Side Ways
Offline
User avatar

Age: 35

Posts: 4316

Joined: 30th Oct 2006

Gallery: 18 images

Ride: Envi EF

Location: Grafton
NSW, Australia

It'd be either his tune is fkd, or fairly average shifts or shift points.. or a combination.

 

_________________

>>>EF Futura T build<<<

Top
 Profile  
 
 
 Post subject: Re: poor performing falcon after mods?
Posted: Sat Aug 01, 2009 8:12 pm 
Getting Side Ways
Offline
User avatar

Age: 37

Posts: 900

Joined: 14th Mar 2007

Location: Castlemaine
VIC, Australia

yeah i meant offset, thought it would have been pretty easy to work out though :)

 

_________________

it can be fast and cheap,but it wont be reliable
it can be reliable and cheap,but it wont be fast
or you can be fast and reliable,but it wont be cheap

Top
 Profile  
 
 
 Post subject: Re: poor performing falcon after mods?
Posted: Sat Aug 01, 2009 8:42 pm 
Getting Side Ways
Offline

Posts: 6449

Joined: 11th Nov 2004

What cam did you put in?
What RPM are changing at?
what diff gears?
what els changed between now and then?
Top
 Profile  
 
 
 Post subject: Re: poor performing falcon after mods?
Posted: Sun Aug 02, 2009 12:43 am 
Getting Side Ways
Offline

Posts: 1220

Joined: 11th Nov 2007

Ride: f6 rspec

Location: Sydney
NSW, Australia

the wade 1673 (i think thats the one? the biggest one?)
also got the tb that 69mm? (thinking of taking this out as my fuel economy has gone out the window since fitting it.

Im shifting at around 5500, and diff gears are tickford 3,45's lsd.

besides that everything is the same, oh and ofcourse the 19" wheels, but according to an online calculator its only +0.1 rolling diametre, but still made a big difference that i could feel.
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 2 of 3  [ 32 posts ]  Go to page Previous  1, 2, 3  Next

Who is online

Users browsing this forum: No registered users and 90 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Thu Apr 25, 2024 2:37 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names