lets put an END to the MYTH!

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5th August 2009, 05:21 PM
c.h.i.e.f

Quote:

Originally Posted by isuzurover

Couldn't vibrate any more than a 2.25D!!! :D

To end this, how about some 300Tdi owners and 4BD1T owners do acceleration tests themselves and post up the results.

Engine. Time 0-100. Vehicle type. Tyres. Gearing.

thats a good idea can we throw in a long hill climb as well ?
oh and to get things straight im not completely bagging out isuzu's me and the old man would just like to see how the 4bd1T goes compared to the 300tdi so another thing would be if anyone around my area would like to take us for a run in there 4bd1T to show us how it goes that would also be a resolution to the problem :angel:
5th August 2009, 05:39 PM
Dougal

Quote:

Originally Posted by isuzurover

To end this, how about some 300Tdi owners and 4BD1T owners do acceleration tests themselves and post up the results.

Engine. Time 0-100. Vehicle type. Tyres. Gearing.

Okay, I'll bite.
4BD1T (1985-6 truck version).
85 Rangerover, 29" tyres, 2.3T empty.
15-16 seconds for 0-100, runs an Isuzu 5 speed box with a 1:1 LT230. Would be much faster 0-100 with an auto.
5th August 2009, 06:14 PM
Bush65

Quote:

Originally Posted by Dougal

The strength limits of the 4BD1T haven't been found yet.
We have a guy who's popped head gaskets with 60+ psi boost. AFAIK he replaced the head gasket and is still driving it.

The bottlenecks are:
1. Stock fuel pump seems to be good for only 140 cc/1000 shots of diesel.
2. Getting enough boost to burn that cleanly.

140cc/1000 shots of diesel burnt cleanly at 3200rpm is going to give almost 200kw.
You need north of 30psi and a very good intercooler to get enough air in at that rpm.

For your info:
My IP was sent to a shop for a tune up.

On the test bench, with governor removed and rack adjusted by hand, it delivered 180cc/1000 strokes.

With governor back on it could only deliver 170cc/1000 strokes. But profile of torque cam could be modified to get 180cc/1000 strokes.

My P&B's are 9.5. It looks like 10.5 P&B's as used in the 4HG1-T IP will fit - waiting for price.

I have asked for 200cc/1000 strokes. I think I will have enough air, so should perform ok.
5th August 2009, 06:16 PM
Bush65

Quote:

Originally Posted by cal415

Funny you should mention that, i was reading on a Commodore forum about people playing with turbo kits and the new V6s pushing figures around that :)

I wonder how that would go in a bush rangie??? :D

And a 4 speed Atlas - not too scruffy :)
5th August 2009, 06:25 PM
Dougal

Quote:

Originally Posted by Bush65

For your info:
My IP was sent to a shop for a tune up.

On the test bench, with governor removed and rack adjusted by hand, it delivered 180cc/1000 strokes.

With governor back on it could only deliver 170cc/1000 strokes. But profile of torque cam could be modified to get 180cc/1000 strokes.

My P&B's are 9.5. It looks like 10.5 P&B's as used in the 4HG1-T IP will fit - waiting for price.

I have asked for 200cc/1000 strokes. I think I will have enough air, so should perform ok.

Excellent. It was Carcrafter who had his pump measured at 140cc. I don't know what element size he had.
Mine has the 10mm elements, looks like I'll never run out of adjustment.:D

Any more progress with the intercooler and compound? I want to see how you're going to fit it all in.
5th August 2009, 06:29 PM
dullbird

Quote:

Originally Posted by isuzurover

Couldn't vibrate any more than a 2.25D!!! :D

To end this, how about some 300Tdi owners and 4BD1T owners do acceleration tests themselves and post up the results.

Engine. Time 0-100. Vehicle type. Tyres. Gearing.

can I do mine down hill:D......

in all seriousness it will mean nothing!!! unless your all doing it on the same bit of road:)
5th August 2009, 06:45 PM
dobbo

mt vincentis the rd chief speaks of 7min drive from my place i can pull up in 4th 2/3 of the way up with a bit of tuning i think i could pull it in 4th, mine is an na 4bd1 lt95

A 4bd1t would eat that hill

try bulli pass, kangaroo valley or some of the snowy mountain hills in your 300tdi
5th August 2009, 08:59 PM
Bush65

Quote:

Originally Posted by Dougal

Excellent. It was Carcrafter who had his pump measured at 140cc. I don't know what element size he had.
Mine has the 10mm elements, looks like I'll never run out of adjustment.:D

Any more progress with the intercooler and compound? I want to see how you're going to fit it all in.

I think Randy may have had 8.5 elements (now 10).

I have started on an exhaust manifold and want the HP compressor located before doing much more on the intercooler (short pipe across rocker cover between compressor and IC).
5th August 2009, 09:08 PM
Bush65

Quote:

Originally Posted by dobbo

mt vincentis the rd chief speaks of 7min drive from my place i can pull up in 4th 2/3 of the way up with a bit of tuning i think i could pull it in 4th, mine is an na 4bd1 lt95

A 4bd1t would eat that hill

try bulli pass, kangaroo valley or some of the snowy mountain hills in your 300tdi

Had chief accepted the challenge, I was going to suggest I tow the turdis, and he tow any small car of his liking, up Thunderbolts Way. I could have a nice lunch at Walca while he catches up :D
5th August 2009, 09:22 PM
EchiDna

Cheif, send photos of your standard 4BD1 powered 110... I'm willing to take it off your hands for 2k to ease your suffering sight unseen :P

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