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35s on 80series petrol (diff ratios)

Tech Talk for Cruiser owners.

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Posts: 9
Joined: Wed Mar 12, 2008 1:55 pm
Location: vic

35s on 80series petrol (diff ratios)

Post by nothin »

have an 80 with 35s and find it a bit sluggish. Have others changed diff ratios for better performance or just put up with it. Brothers 80 with 33s accelerates and drives better but i love the 35s.
any links on price of gears appreciated.
cheers
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Location: wollongong

Post by dow50r »

A turbo fixes it real quick.....but a ratio change to 4.56 will fix the spedo and return performance.
Confucious say...man who argue with idiot, worserer himself
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Joined: Wed Mar 12, 2008 1:55 pm
Location: vic

Post by nothin »

would love a turbo but like the dual fuel helps with the running costs.
Any suggestions on where to get gears. Front and rear are air locked, does this make anydifference?
thanks
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Location: Melbourne

Post by rezpkt »

http://www.locktup4x4.com.au/catalog/4d ... ef6a3.aspx
I'd be buying them from Chris at locktup.

Shop around and get quotes, what suburb?
Team: Cause For Concern
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Location: vic

Post by nothin »

thanks for the link, in country vic. south west
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Location: nowra

dual fuel turbo

Post by turbo105 »

nothin wrote:would love a turbo but like the dual fuel helps with the running costs.
Any suggestions on where to get gears. Front and rear are air locked, does this make anydifference?
thanks
you can turbo it and keep dual fuel, i have done it a few times
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Location: vic

Post by nothin »

that sounds interesting, are you able to share an info or specs.
thanks
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Post by BUSTED100 »

nothin wrote:that sounds interesting, are you able to share an info or specs.
thanks
x2
*T/D 80 Saharra - SOLD *V8 100 GXL - SOLD
* 105 - CHOPPED, LOCKED & ROLLED see build up http://www.outerlimits4x4.com/viewtopic.php?f=16&t=167093&hilit=busted100
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Post by turbo105 »

no worries, turbo'd my 3f efi 80 series on gas a while ago, simple set up, CT26 turbo, rising rate fuel reg for the petrol side of things, suck through gas mixer in front of the turbo, good for about 30% more power on 7lb boost, ran 15lb in the sand at stockden beach gas only with a small amount of water injection for cooling. building a much better setup for my 105 series with injected gas (elko gas) finaly be able to run an intercooler and some real boost! with a 3582r garret (xr6) turbo, going for about 450-500 hp, should do that easy, going to fit an aftermarket programable computer for the petrol side of things this time, the gas computer just follows the petrol computer so once youve got the petrol tuned right the gas doesent take long with this system.
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turbo dual fuel

Post by turbo105 »

as a bonus, with a turbo, you get better fuel economy on both gas and petrol if you tune it right, side note always get your valve clearences right, if your exhaust specs say 8-10 thou go 16! exhaust valves grow more on gas, then they ride, then they burn.
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Location: vic

Post by nothin »

wow you make it sound easy. Prob stupid questions, did the stock computer, injectors and pump handle the 7psi. What brand of convertor were you running.
thanks and sorry for the questions
mine is 1 fz
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Post by evanstaniland »

what about 37s on 80s?? What ratios would help with that. they need to be strong as in comp car

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Post by icrawl »

i have 37" xterrain pro comps tyres ,4.88diff ratio (motive brand from states) takes off like standard 80's cruiser can spin wheels on wet black top sits at 2800rpm at 105km in 5th and dont have to change through the gears much as have the power at right foot
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Post by midi73 »

rezpkt wrote:http://www.locktup4x4.com.au/catalog/4d ... ef6a3.aspx
I'd be buying them from Chris at locktup.

Shop around and get quotes, what suburb?
When they say reverse cut, does that mean the diff is running backwards when the vehichle is moving forward, like a standard 10" diff?
Cheers.
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Location: melbourne

Post by icrawl »

only the front is reverse cut
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Post by midi73 »

icrawl wrote:only the front is reverse cut
Your not kidding.
With a 10" diff eg 60. The front diff, is the rear diff in the front, therefore running backwards. The 8" diff eg 80 runs the right direction. That is why they are weak. They mainly break when the car is in revearse because all the weight is transfered onto the front diff when it is going backwards.
So I am clarifying are the 80 centres (FRONT) cut so they run in reverse when the car is going forward.
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