Outer Limits 4x4 Board

Well I finally got my Turbo installed and exhaust/crossover pipes done, installed a Pyro & Boost gauge and now im itching to get this thing back on the road.

What is the general consensus for the initial adjustment on the fuel max delivery?...1/2 turn....3/4 turn...1 turn... & what sorta temps should i be running the motor at? Its a 2.8 with a ct-20 off a 2lte surf (Ive installed the pyro just after the turbo with a new exhaust & 3in Dump pipe)

Also I think im going to just run with the standard boost that the turbo makes without employing the washer upgrade. What should the standard boost be on these motors by the way?

Stock boost 8-9 psi ish?

I started with 1/2 turn in. And then re-adjusted for 500-550 at max load.

Any plans for an intercooler?

I think I'll do the same and start with 1/2 turn and see what effect that has. Would rather have reliabillity over performance, which can't be worse than before the turbo was bolted on. Nothing can be worse than it was !!! Ive been overtaken by a bloody Nissan with tinnie on the roof and van in tow going up a hill !!! Gee he was smiling as he drove past me

I have a standard cooler of a R33 riceline lying in the shed, but have no plans to install it at this stage, as it would require a bodylift to fit, plus i don't think the amount of work needed would be worth the performance gains it'd give me. (I stand to be corrected if any1 has fitted an intercooler and thinks it was worth while... any1 care to comment...?) I still have a lot to learn so I'll listen to everyone's opinion/experience before I make a descision...

Being that its a pretty small cooler, I think would be prone to heat soak, also I change my oil religeously every 4000kms so I dont wont to make it any harder to refill the oil by obstructing it.

mine was about 3/4 of a turn in the end but yeah start off with 1/2.

mine only goes over 500 occasionally and very rarely but has been upto about 540. if that happens i back off to about 500 again just to be sure, even though rule of thumb is safe to 550.

mine is intercooled and i have 2 turns in it runs 12psi and goes hard bit smokey down low though but i dont care

I did three turns, but the real test is smoke.

Keep turning it until you get smoke under power, then back it off a bit. (provided your injectors are good)

Increasing boost will assist EGT's getting too high, but it's all a bit of a balancing act.

http://www.perth4x4.net/forum/showthread.php?t=28202

Tim

Tim HJ61 wrote:I did three turns, but the real test is smoke.

???

the real test is egts, guess work off smoke is exactly that.

you risk goin a bit hot, might seem ok but be slowly melting vanes and what not generally weakening stuff until it craps out and destroys an engine which will cost more than a $120 dyno tune with egts.

thehanko wrote:

Tim HJ61 wrote:I did three turns, but the real test is smoke.

???

the real test is egts, guess work off smoke is exactly that.

you risk goin a bit hot, might seem ok but be slowly melting vanes and what not generally weakening stuff until it craps out and destroys an engine which will cost more than a $120 dyno tune with egts.

x2.

EGTs are the real test. Especially pre turbo.

For about 400 hunjy you could have an aneroide fitted to take care of fuel flow. The fuel is controlled by boost automatically. Mine works really well and very little smoke at all rev ranges. I don't worry about a pyro because I confident the aneroide is not dumping too much fuel in there and taking EGT too high.