V8 4Runner

ozrunner · Post by **ozrunner** » Tue Nov 07, 2006 2:46 am

Hi Guys

Newbie from Oz.

I have a 91 4Runner that has a Cobra 5.0 that I fitted in 1993 when my 4Runner was still under Toyota warranty

Recently finished a custom 8 stack injection but have yet to post detailed pics on my site.

It has a host of other custom mods including:

Rear Detroit Electrac (LSD/Locker)
Front ARB air locker
Front and Rear electric swaybar releases
Twin Rancho pumps and controls mounted in a Cruiser roof console.
Rear disc brakes
Rear draws and a host of other changes and additions.

Here's my PAGE

Cheers
JD

mroffroader · Post by **mroffroader** » Tue Nov 07, 2006 5:29 am

nice truck! im pretty sure i saw this on trademe ahwile ago?

MATT4U · Post by **MATT4U** » Tue Nov 07, 2006 7:17 am

mroffroader wrote:nice truck! im pretty sure i saw this on trademe ahwile ago?

Why do people always say "im pretty sure i saw this on trademe ahwile ago?" Specially when this dude is in auz.

Nice truck man, I seen it on Pirate and Toyota surf.

Petemcc · Post by **Petemcc** » Tue Nov 07, 2006 11:20 am

maby he thought he saw it on trademe.... at least thats why i would think he said it. Turns out he might have been wrong.

Post by **mike** » Tue Nov 07, 2006 11:42 am

The previous 3-4500rpm and not being able to maintain a reasonable cruising speed was frustrating, particularly when using cruise control. Overtaking was also a very major concern as many times even though the road was clear the standard engine performance made your mouth dry.

Without doubt the V8 makes for relaxing driving and in my opinion it is now a much safer vehicle. The ability to now cruise without having to constantly change down or hold a lower gear and easily overtake makes an enormance difference and what the conversion was all about.

As far as actual performance goes it is very quick as it does have substantial HP and will easily fry the rears and acceleration puts you back in the seat but that is not what it was all about.

The main benefit I was chasing was lazy reving V8 torque and going from 174nm to approx 450nm makes a huge difference. It has more grunt than a pigfarm!! The difference in 4wd is incredible.

MPG / L/100k

When building the engine although at that time I was not overly concerned about fuel consumption, I did make a few alterations with this in mind. However, even though I have now made several additional changes to the engine specifications besides having more than adequate power and torque the HO has still proved to be very fuel efficient. It will easily attain 12-13L/100km when touring at 110kph. I now have power and good economy.

And after reading that it just makes me want to ditch the old diesel :roll:

welcome aboard ozrunner.

Mike

ozrunner · Post by **ozrunner** » Tue Nov 07, 2006 2:42 pm

nice truck! im pretty sure i saw this on trademe ahwile ago?

Iâ€™ve no idea what trademe is but I can assure you its never been it it

.

Mike

The V8 makes a huge difference in these rigs and itâ€™s a joy to drive. EFI certainly is amazing as over the years Iâ€™ve done a lot of engine upgrades with the view of making it more efficient and mpg gets better each time, even though a by product is more HP

.

Only just completed the custom 8 stack injection and also fitted new alloy AFR 185 heads and a very healthy cam etc etc. Iâ€™m currently waiting for a guy to book some dyno time so he can fine tune the ECU for these additions using a US Tweecer mapping unit.

I am not expecting the mpg to be affected as it now cruises even easier with virtually no throttle pressure. Will also finally get some idea what sort of HP it's making. I would guess somewhere between 300-350hp at the wheels.

JD

Petemcc · Post by **Petemcc** » Tue Nov 07, 2006 3:43 pm

Its a good write up you have, you seem to have a very good attention to detail. Which engine did you have to start with? I have the 3L V6 (3vze) Its got more power than my old 2.4 diesel but thats about all i can say lol. desperately lackng in torque and uses way to much gas for the power it deliver. Oh well no money for a whopping V8 at the moment. Dreams are free.

Pete

mroffroader · Post by **mroffroader** » Tue Nov 07, 2006 4:03 pm

oh well it was extremly similar motor and everything

sorry i must have been wrong :cry:

Sadam_Husain · Post by **Sadam_Husain** » Tue Nov 07, 2006 4:17 pm

mroffroader wrote:oh well it was extremly similar motor and everything sorry i must have been wrong

have you been straying away from those zuks on trademe and searching v8's eh :wink:

turoa · Post by **turoa** » Tue Nov 07, 2006 4:22 pm

Sadam_Husain wrote:
mroffroader wrote:oh well it was extremly similar motor and everything sorry i must have been wrong

have you been straying away from those zuks on trademe and searching v8's eh

he often sends me landrovers on TM as well :lol:

Ryan · Post by **Ryan** » Tue Nov 07, 2006 4:26 pm

i think the one mr0 saw had a chevy in it and was bought
by a guy i know in porirua

yours is a nice truck ozrunner!!

Sadam_Husain · Post by **Sadam_Husain** » Tue Nov 07, 2006 9:09 pm

mike wrote:

MPG / L/100k

the HO has still proved to be very fuel efficient. It will easily attain 12-13L/100km when touring at 110kph

I'll swap ya, the best I can get out of my cruiser driving with my economic hat on in about 22L/100km

Post by **mike** » Tue Nov 07, 2006 9:30 pm

I am not expecting the mpg to be affected as it now cruises even easier with virtually no throttle pressure. Will also finally get some idea what sort of HP it's making. I would guess somewhere between 300-350hp at the wheels.

Sorry about the thread jacking there ozrunner, I try to keep on top of it.

Thats an impressive amount of HP. I've just got my first ever V8 and shoved it in my LR (my avatar) which is a 3.5 rover v8 out of a 78 rangie boasting a whopping 123hp :shock:

The efi models standard are 168hp. I bet I will end up loving it so much I will go for one of the efi 3.9's (186hp standard) to modify. By the sounds of what you have done it will be the way to go. How much did the engine cost you? I should look at selling my engine before it goes and do a transplant like that

Mike

ozrunner · Post by **ozrunner** » Tue Nov 07, 2006 11:55 pm

Mike / Pete

I brought the engine from the US back in 93 and it was from a Mustang and it cost $A1500. They are basically the same as what was later put in the Falcons.

I've done a lot of progressive changes since then so all up the overall cost is getting high as you know what its like when you start changing things and then changing your mind etc etc.

But basically the Ford's are a great engine to play with as there are a host of performance parts available at reasonable costs and its not hard at all to make some impressive gains.

I will know soon what its putting out but I purposely built it with low compression so I am probably losing a bit there, however I am confident it will be around 300-350hp at the wheels. I don't know what the formula is for drivetrain loss and also adding a transfer etc but at 15% makes it possibly 402hp at the flywheel. It could even be more and I'll find out soon

But even with that HP it will still give me a great mpg so its great for cruising. I usually drive across to the East each year to go to Bathurst and then meet up with some 4wd guys and do some exploring etc.

Hope to get to Queensland again next year.

This is CRUISING at only 3000rpm in NT

Here's a detailed build up of the INJECTION that I posted on a US Mustang Board.

JD

mroffroader · Post by **mroffroader** » Wed Nov 08, 2006 5:31 am

[quote="ozrunner"]is CRUISING at only 3000rpm in NT[quote]

holy crap thats awsome!!!!! i dont even think my zook would get to 160! and if it did it would be like redlining lol very nice, yea sorry about the thread hijack :roll:

JTop · Post by **JTop** » Wed Nov 08, 2006 8:05 am

Excellent and professional work. I feel you are an unmarried, unemployed, Lotto winner to have so much time and energy to put into your projects.
Why did you not try crank trigger ignition to give you the manifold
clearance ?
J Top

Moriarty · Post by **Moriarty** » Wed Nov 08, 2006 9:22 am

JTop wrote:Excellent and professional work. I feel you are an unmarried, unemployed, Lotto winner to have so much time and energy to put into your projects.
Why did you not try crank trigger ignition to give you the manifold
clearance ?
J Top

what a step into the past!! remember the old side valve V8 with the dist mounted on the mainshaft up front? prey to every drop of water that was on the road.

But yeah, modern mainshaft sensors would be the shot for real with Ozzies truck.

ozrunner · Post by **ozrunner** » Wed Nov 08, 2006 2:53 pm

I feel you are an unmarried, unemployed, Lotto winner to have so much time and energy to put into your projects.

I wish,

. Always been a tinkerer out in my shed and she knows Iâ€™m not going to change so she accepts it. We went and saw the â€œWorldâ€™s fastest Indianâ€

Moriarty · Post by **Moriarty** » Wed Nov 08, 2006 3:50 pm

I did consider it as the AU Falcon changed to coil pack ignition via a trigger on the crankshaft damper, but considered it could be liable to problems especially from salt water etc on beach runs not to mention mud etc etc.

the hall effect switch is a sealed unit, and even if it AINT, it is easy to make it so.
no moving parts. only two wires come out to the magic box, coils up out of the way, room now to

fit a supercharger

and hopefully get to fit some electric hubs,

I got a set of AVM vacuum hubs that would suit an Aussie that hasnt any mud to play in! we could do a trade...... I need a set of manual hubs......

ozrunner · Post by **ozrunner** » Wed Nov 08, 2006 5:40 pm

I got a set of AVM vacuum hubs
Got any pics of those and what is the spline count etc.

It's no drama's sourcing manual hubs and posting to those that what them

.

ozrunner · Post by **ozrunner** » Wed Nov 08, 2006 6:03 pm

Actually how are these vacuum hubs setup to get vacuum. Do you run a hose from the engine itself or a tank and do they use a hose via the wheel assembly etc ?

What are the main issues with them, ie do the disengage etc.

I was thinking of using auto hubs but most seem to disengage upon reversing which would be a bitch in some tricky situations.

The electric hubs would be the go but there is the issue that they really aren't made for the IFS Toyota so it will require some work to fit them, if at all possible

coxsy · Post by **coxsy** » Wed Nov 08, 2006 8:35 pm

if you need more power there is allways the displacement to increase you can push a 302 out to 384 cu in the kits are avalable to do that

Moriarty · Post by **Moriarty** » Thu Nov 09, 2006 1:13 pm

ozrunner wrote:Actually how are these vacuum hubs setup to get vacuum. Do you run a hose from the engine itself or a tank and do they use a hose via the wheel assembly etc ?
What are the main issues with them, ie do the disengage etc.

Issues? needs a good seal as inner seal on hub. they will engage at normal raod speeds quite happily, NOT 200KPH though!1 (truck cant pull that, but you get the idea) Better I think for dry conditions than for us playing in the swamp all the time!!!

Vacuum. Petrol engine, right? OK, use the vac line that feeds the power brake booster, run a line to a electric vac breaker to control vac. tie THAT operation into the 4wd selector so wen u select 4wd either hi or low, it engages . works ok on Ssangyong like that.

need to drill a hole into the hub that lands INSIDE the inner oil seal, vac is then drawn thrugh the hub for operation.

I was thinking of using auto hubs but most seem to disengage upon reversing which would be a bitch in some tricky situations.

The electric hubs would be the go but there is the issue that they really aren't made for the IFS Toyota so it will require some work to fit them, if at all possible

Spline count? Photo? no worries. rushing out to garage to do just that.... dont go away..... BRB.....

ahhhh here I am, back, didnt take long eh? ... quick wipe to clear some of the grease and shit....

forgive me for doing sizes in imp measurements, but I think in Thousandths of an inch, not bloody millimetres

OK, 28 count spline
Shaft dia AT SPLINE 1.15 inches
shaft dia behind spline 1.18 invhes
PCD of mounting holes 1.650 inches 83 MM
mounting hole dia 0.40 inches

go to... http://www.avm.com.br/products.htm for more info.

ozrunner · Post by **ozrunner** » Thu Nov 09, 2006 2:58 pm

Mate, thanks so much for that informative response. But a bugger is the spline count is two too many,

.

Although given the shaft diam size it probably wouldnâ€™t be difficult to swap in a Ssangyong shaft etc. But problem is they are not plentiful here and if I busted one I could be up the creek.

I did check AVMâ€™s site but it doesnâ€™t list what vehicles they make this hub for. Do you know if these vac hubs are available for the Toyota Hilux/4Runner IFS 26 spline shaft ?

Iâ€™m not sure if any of our Ssangyongs came with manual hubs but Iâ€™ll check a few wreckers and let you know.

WJW is looking in his shed

for some Toyota Prado electric hubs. Although they use a 30 spline shaft it maybe possible I can do something with those, but as usual you need to have them to look at etc to work out ways to possibly accomplish it.

wjw · Post by **wjw** » Thu Nov 09, 2006 3:31 pm

ozrunner wrote:WJW is looking in his shed for some Toyota Prado electric hubs. Although they use a 30 spline shaft it maybe possible I can do something with those, but as usual you need to have them to look at etc to work out ways to possibly accomplish it.

Haven't found them yet

had a cursory look, need to delv into some oily boxes I think..

V8 4Runner

V8 4Runner

oz runner