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86
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Technical Board / Modification Help / Re: EXTREMELY poor fuel economy modified fc with 179 t700 auto
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on: February 13, 2014, 06:11:17 PM
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I like to fit the efi 6 cam Just seems to be a good overall cam
Back to OP's questions
Idd still dyno the car before you buy anything or change anything Yes I believe your final gear is too low and need to be higher but just hold off until you know how high
You may find is better to chop down a vn and go with 4.11 or 4.3 Or stuck with what you have and run 3.9 or 4.44(this is what I think you may need if you stick with stock)
But the dyno will tell you where you make peek power and torque and what rpm each is at Then you look at street signs in area So you know 40, 50, 60, 80, 100 are about the only limits around anymore 2nd should do 40-50 3rd 60-90 4th 90+ This will change under power but should cruse in that gear at that speed
Look at the ratio of box and work out rmp and try to pick a rear gear that will allow the broadest range of speeds In your torque band
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87
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Technical Board / Modification Help / Re: EXTREMELY poor fuel economy modified fc with 179 t700 auto
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on: February 12, 2014, 05:15:40 PM
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That would depend on witch 700 box he has The electronic boxes requires a Compushift electronic controller to control the gear shifts and torque converter lockup. As well as a kickdown And thoes are like 15-2k to get made up
Idd still get it dyno tunned before you change anything and then from the info off the dyno select you final gear ratio from that
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90
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Technical Board / Modification Help / Re: EXTREMELY poor fuel economy modified fc with 179 t700 auto
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on: February 11, 2014, 08:40:11 PM
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deff dyne the car I've seen a few 700's behind 202's but never a 179 what the ecomeny like if you drive it in 3rd and not 4th on the fwy
the 179 came out with rear ratio or 3.55 manual 3.36 auto and 3.86 commercial
if you have the std 23.9" tyres an eh man is 3000rpm @60mph (same as you in 3rd) auto 2840@60 3.88(3.9) 3300@60 your car in 4th should be around 2100rmp@60mph
your engine is more then likely labouring at the rpm (something you'll be able to find out on dyno and prove or elimate)
if your still running the banjo rear end 3.9 or 4.44 are all that on offer in a taller ratio the 3.9 will be 3300@60 in 3rd and 2300@60 in 4th but idd go the 4.44 3750@60 in 3rd 2625@60 in 4th (this will still offer good economy on fwy and a very good city package as well)
4.11 (3470@60mph in 3rd) 2430rmp@60mph in 4th or 4.3 (3630@60mph in 3rd) 2540rmp@60mph in 4th
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92
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General / General Board / Re: Lending your car(s) for weddings in SA?
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on: February 11, 2014, 07:46:42 PM
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you can only be fined/jail if you except payment of any type it's the same if you hit your mates up for petrol money on a trip,
if anything exchanges hand what so ever you need to be a registered business and hold the appropriate licence if you do it for free it more then legal and so it should be
and i agree if you are payed for the use, then yes why not get fined or inprisonment every other business need to be register and be licensed for there work why should you not if you getting something out of it, weather it be just cost or not
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94
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General / General Board / Re: Paint
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on: February 09, 2014, 07:51:11 PM
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I've been told otherwise but I have zero experience putting 2pac over acrylic.....
sorry got that the wrong way around acrylic over 2pack as 2pack goes hard and acrylic doesn't
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95
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General / General Board / Re: Paint
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on: February 08, 2014, 04:01:50 AM
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2pack soild colours don't need clear coat Anything fancy does 2 pack will go over most acrylic paints And is baked on to give a harder finish
Acrylic is easier to paint and cheaper to buy Requires a clear coat and in most older cars is Oem Depending on age in witch case could have been enamel Can be painted at home (2pack I wouldn't Do for safety resions)
There are some really nice and high quality water based 2pack out now witch is becoming the trend for most shop as solvent based are being banned in some states a nd countries So don't rule that out
Personal I would go 2pack unless doing a complete original build to show and quality If you plane to drive it and not show it where paint type will be judged I would 2pack Just for the longevity and less hassle and maintenance
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96
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General / General Board / Re: old school engine Mods
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on: February 07, 2014, 06:38:34 AM
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Not sure if this is going to place to post thoes old school mods But the water outlet relocation mod is another good one Where the head is drilled and tapped for multiple exit points
If some has a pic that can post I can't seem to find any on net
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