Rebuilding mk4 90bhp engine, rebuild as 150?

[jonnyb]

This might be a daft question, but here goes:

I've picked up a mk4 golf 1.9 tdi (90bhp) model.  It required a full engine rebuild to get back on the road, but i was wondering what are the differences between the 90 and 150bhp model?

Is it possible to upgrade a few parts to bridge the power gap?

If possible, would it require uprated gearbox/clutch or extra bits?.  (im assuming brakes would be a must).

Cheers in advance!

[scarr89]

Brakes, turbo, injectors, IC, gear box(6 speed), manifolds, piping. The list probably goes on...

Will cost an AWFUL lot of money to do that rebuild. 

[scarr89]

ECU and mapping. There is an easy £400+.

[danny_p]

you chould in theory rebuild it as a 130 then get 150 or more with mapping,  but the 150 has quite a lot of differances so would be a twerp to build it as a 150 may as well just buy engine loom and ecu

[jonnyb]

lol, seems like one big headache.  Like i said, it was just a thought.  Danny_p, you mention it may be possible to rebuild at 130?  What's involved?

Basically, im just trying to squeeze a bit more power out of the engine whilst im rebuilding, as i may as well take the opportunity.

[scarr89]

lol, seems like one big headache.  Like i said, it was just a thought.  Danny_p, you mention it may be possible to rebuild at 130?  What's involved?

Basically, im just trying to squeeze a bit more power out of the engine whilst im rebuilding, as i may as well take the opportunity.

All of the above mentioned...The only differences between a 150/130 is the turbo and the SMIC in the 130, FMIC for the 150.

Just the pipe work in the 130 is easier I guess. 

[danny_p]

thought there were ECU differances    allong with 130 turbo been traditional wastegate type and 150 been varible jobbie,  may be mistaken tho havent done much on dinkey diesels for a while now

[scarr89]

thought there were ECU differances    allong with 130 turbo been traditional wastegate type and 150 been varible jobbie,  may be mistaken tho havent done much on dinkey diesels for a while now

ECUs are the same I believe, just mapped differently. Both turbo are VNT type 

[jonnyb]

Ok, so the 90bhp seems a lost cause regarding upgrading to a 130/150 somehow. 

Much easier to take the remap option?  I'd be happy for now to have 110-120bhp

[scarr89]

I would defo not re build as a 130/150.

The amount of effort time money would be ridonkulous!