Offroad-Express

does anyone have the standard down pipe (off the turbo) that i can borrow to make a jig up for a new free flowing one, i will give it back once im finished. means my truck will be off the road for a shorter time as daily driver.. wellington area thanks. 94 prado

Has anyone done this mod and what differance has it made?

rage exhaust systems in east tamaki had a free flow 1ktze dump pipe on the shelf, but listed it for the 95 on prado (cant remember model code but the first of teh IFS ones. Price was around $250 for memory. No idea whether it would bolt on to the 93-95 beam axle prado. Tempted to try as mine is a gutless wonder when towing the zuk up any incline....

oldblue wrote:Has anyone done this mod and what differance has it made?

Done it on a Hilux 2L-TE
Opened up the cast iron Turbo outlet casting, larger joint plate hole and larger system from then on. Made a HUGE difference. Engine heat, power, torque. Twice the POShite.
Yet to do this to my Prado but definitely on the plan as time permits.

Lil Piggy
Whats with you rig?
You should have plenty of torque for a zook behind? what does it weigh?
I found porting my cylinder head and associated piping, and fully blending in with weld & die grinder, the bowl where the EGR came in, has made HUGE gains. I have about 1/3 more mid range torque and lower EGT's. The exhaust ports have a nasty sharp & restricted 90 deg bend, it looks almost machined.
From 100 to 140 km now 1km instead of 1.6 km. Now tops out at 155km and no other mods yet other than a new set of injector tips.

i reckon these dump pipes can be made for half that price. im looking for a dxf file of the flanges but might have to pull my truck apart to measure up my own . i just dont want my truck off the road too long. once i got those sorted i will make a few up and flick them off

IcedJohnno wrote:Lil Piggy
Whats with you rig?
You should have plenty of torque for a zook behind? what does it weigh?

just clicked over 200K. Zuk weighs approx 1 ton, plus trailer at the time was 250kg. Up bombay hill was down to 60-65 km. Previous tow vehicle was a Disco 2 TD5 (2.5L 5 cylinder), that would do minimum 70km with similar weight zuk and a 400kg trailer
Is a manual 1kz, whether they dont tow as well...... Perhaps I expected the yota to pull better than the smaller engined pommy wagon

lilpigzuk wrote:

IcedJohnno wrote:Lil Piggy
Whats with you rig?
You should have plenty of torque for a zook behind? what does it weigh?

just clicked over 200K. Zuk weighs approx 1 ton, plus trailer at the time was 250kg. Up bombay hill was down to 60-65 km. Previous tow vehicle was a Disco 2 TD5 (2.5L 5 cylinder), that would do minimum 70km with similar weight zuk and a 400kg trailer
Is a manual 1kz, whether they dont tow as well...... Perhaps I expected the yota to pull better than the smaller engined pommy wagon

Try towing a hilux behind it then youll see the thing work hard!!!!
Being a auto doesnt seem to help mine in any way!
Cheers

lilpigzuk wrote:

IcedJohnno wrote:Lil Piggy
Whats with you rig?
You should have plenty of torque for a zook behind? what does it weigh?

just clicked over 200K. Zuk weighs approx 1 ton, plus trailer at the time was 250kg. Up bombay hill was down to 60-65 km. Previous tow vehicle was a Disco 2 TD5 (2.5L 5 cylinder), that would do minimum 70km with similar weight zuk and a 400kg trailer
Is a manual 1kz, whether they dont tow as well...... Perhaps I expected the yota to pull better than the smaller engined pommy wagon

Mines at 190k and has always towed better than that apart from when the head was cracked (white smoke showing)
Suspect either incorrect fueling; volume, timing or spray pattern. Or perhaps boost wrong or Compressions down.

any one got any dump pipes in from aussie?

its suprising that no one makes dump pipes for diesels over here.

chrome wrote:does anyone have the standard down pipe (off the turbo) that i can borrow to make a jig up for a new free flowing one, i will give it back once im finished. means my truck will be off the road for a shorter time as daily driver.. wellington area thanks. 94 prado

just a thorght but you could always get a new gasket & use it as a template

yeah i figured that one out today, shoulda done that ages ago huh.
i will still convert to a dxf in case anyone else needs it

What's a DXF

a dxf is a file type for a cad program, usually a drawing that is to be profile cut or laser/waterjet cut needs to be a dxf file and can be sent straight to the cutting machine

Hi Kev, a DXF is a bit technical for you , in your day it was a bit of chalk and a gas,

AXE.

FITZY.

Is this from Aussie or did you make it? How many $$$$$

hey old blue, no i havent made one yet but i have the parts. one pic is from oz and the real nice one is from finland.
a turbo exhaust flange can be bought from autobend for around $50 and a 90 degree weld elbow is about $15. im not sure about labour yet. i will get my flange copied at the local laser place so then i can foward the data around by email to anyone with acess to an engineering shop that has a profile cutter or laser. will let you know how the build goes

Keep us posted on developments

chrome wrote:hey old blue, no i havent made one yet but i have the parts. one pic is from oz and the real nice one is from finland.
a turbo exhaust flange can be bought from autobend for around $50 and a 90 degree weld elbow is about $15. im not sure about labour yet. i will get my flange copied at the local laser place so then i can foward the data around by email to anyone with acess to an engineering shop that has a profile cutter or laser. will let you know how the build goes

now that i look at it again they are the same pipe i musta lost a pic some where and the flange in the engtek box looks the same also so this must be a aussie one aye??

got the dumppipe on tonight. but without the flange showen in the pic , i just ran it down to the next set of flanges after thhe flexi. spools up faster for sure and it is starting to get boost pressure from 1400rpm so not a bad start. it definatly gets more turbo whistle too sounds mean

thought i would get rid of the flanges at the end of the cast bit and run it down to the ones under the drivers seat

Before the final fit ever thought of making a jig and makeing them up on demand.

i think i would just make the cast bit to the triangle flange pipe the same as the ones in the first pictures i posted. much quicker and then just swap in the new one. so i will be jigging it soon. i am looking for a place to draw up the flanges for me or else i could order them in. i think i can get them lasered locally for cheaper im just busy playin around with my truck at the mo while the motovation is good. i will see the laser man early next week and see what he can do for me

Where did you get the flanges made and can I buy them, thinking of making up a dump pipe.

hey there, i got them from autobend in chch they have an online pdf catalog. i cant get them any cheaper than what i got them from these guys, just try to use a trade account. they are pretty easy to make and my one is still all good no cracks or whatever. when used with a full exhaust you will notice the power increase on hills and stuff, worth doing.

Should of asked, do they make the top flange of the dump pipe.

yeah, cost me about 50 buck delivered to welly.



http://www.rage.co.nz/New%20Site/web-co ... 0Mar08.pdf


ct12b flange on about page 10

FL4983 part no

One more question, do you know which Flange picture on the Autobend catiloge is the same as the lower end of the dump pipe?

na sorry dude. ive got the original pipe at work tho. i can measure up the stud centres if you want and go through their catalog

That would be great