Thread: Budget 4BD1 turbo install

Yeah the book also had a table of how long the engines/turbos are rated for most being rated at 40seconds
Your injection pump has a boost compensator on it doesnt it ? Seeing as you said it does not get out of bed until 1600rpm you wouldnt have as much smoke down low like the rest of us without the compensator ?

Yes I have a boost compensator, it starts to remove the stops around 4psi boost and is full open by 7psi.
Normally no smoke off boost but occasionally you get caught in the transition, mostly when towing.

I find that if I have around 4psi boost there is no smoke but once I get below around 4psi and load it up it will blow alot of smoke but then again it will be to do with driving style.
another thing I found in my reading was for a 4bd1 the timing advance is 13° and for a N/A 4bd1the timing is 10° does this matter or is it just useless info ? Why I ask is because when I got spill timing done on my tdi it went 100% better but it has a VE pump just wondering if its worth getting it done on the isuzu ?

Originally Posted by c.h.i.e.f

I find that if I have around 4psi boost there is no smoke but once I get below around 4psi and load it up it will blow alot of smoke but then again it will be to do with driving style.
another thing I found in my reading was for a 4bd1 the timing advance is 13° and for a N/A 4bd1the timing is 10° does this matter or is it just useless info ? Why I ask is because when I got spill timing done on my tdi it went 100% better but it has a VE pump just wondering if its worth getting it done on the isuzu ?

Chief, I have left my NA engine timing alone, as it is quiet and performs very well with the turbo, but yes can be smoky if you try uphill starts in 2nd......good for annoying cyclists though . Maybe I'll advance it a little at some point in time and see what happens, but I have heard it won't really help that much if you are running a NA pump. I'll let you know if and when I have a play with it.
The VE pump on the 300Tdi will respond well to extra plunger lift/ timing advance. I up them from 1.54mm to 1.6mm. Makes them slightly noisier as you blip the throttle, but it isn't intrusive. The golden rule with the Tdi engine is ' a Quiet Tdi is a retarded Tdi'

JC

Thanks justin I would be interested to see the outcome I also found that with getting the timing done on the tdi it gave it more down low,smoother power delivery and also as you said it changes the noise of the engine but most noticble at idle it makes them sound like a diesel should
I was taking to a mate and he said they could do the spill timing for me but theres nothing they can do for the smoke but he said there was a few he has seen that get the pump cam ground in a certain way to stop the smoke but its costly

[QUOTE=isuzurover;1002748]

And funky 4BD1 manifold which is perfect for a Laminova intercooler system



how does the laminova intercooler system work ?

Originally Posted by stumpy

how does the laminova intercooler system work ?

The Laminova is just a different design of Water-air intercooler. I suppose it would be classified as a tube and fin design.

This shows the water and air flow:


The main advantage is the large number of very fine fins. Which should (in theory) give better heat transfer and lower pressure drop compared to other core designs.

And a 4-core, 2-stage intercooler using laminova cores:

Looks interesting Ben. Is there a standard size intercooler to fit the manifold or is it a custom fit, and what sort of cost is the intercooler?