endrop - for all your online needs

Technical Punto JTD - Resurrected Turbo??

Currently reading:
Technical Punto JTD - Resurrected Turbo??

M

m0nk3y

New member
Joined
Dec 13, 2005
Messages
4
Points
1
Hi First post :)

Hope someone can answer my query - Its been driving me bonkers!!

I've owned a 1.9L JTD ELX Punto 2000 for almost 2 years now, been a great car... But I always wondered where the hell the TD bit comes from, nothing feels turboish about this car at all, until now!...

My cars life is 98% stuck in traffic either stud still or whipping around bus lanes, but last week I found myself in 4th gear @ about 4,200 rpm up a slip road when shwwooosh, my car went from under me. Took me by suprise but soon wondered if this would be the TD coming back? Ive tried to do it agian, revving the bo***x off the little monkey in 3rd but nothing, well nothing until I was on the exact same stretch of motorway at 4,200 rpm in 4th today and swooosh, she flew again!!

whats going on, something need oiling up? Or is my engine falling into bits?

Thanks for any advice :)
 
How curious.

I can't say I ever had this in my Punto JTD. To be honest I'm not sure the car would have surged anywhere once it was doing 100mph in 4th (4200rpm).

Very odd.
 
4200rpm is more or less the limit for diesels, any more and your engine will find its way out of the crankcase!!


Ermm maybe a really sticky wastegate? Have you had it since new? And is it the 90 or 130bhp version? the 90 is more about smooth progressiveness (as most TD's are very much ...... nothin nothin nothin nothin 130bhp, nothin nothin redline), the 130bhp ver is also smooth but not that smooth, it does come online hard at about 2600rpm, its there below that but not boosting highly.


TBH all diesels really need a turbo to make em shift, an NA diesel are usually lousy, all except that stonking BMW 3.0 straight six NA diesel, I mean 189bhp, and 320lb.ft torque + is just amazing, no turbo neither. And they are as smooth as they get!! I tell you, a 330D is probably about as quick as an M3 during normal driving (i.e not on a track), and it does posses more torque than an M3. IN the 5series its also quick, and still my pick of the range (other than an M5 of course, saw one the other day, and got a sit in it, and drooool over the brakes etc, engine in them is massive, think minifreaks' 16vt into a punto is tight, try 5.?l v10 20v block with 7speed semi auto and more electrials then you get on a 60's moon mission in between the extended arch's, tis very very tight, and the exhaust note is even tighter!! I mean, oohhh)
 
sorry yeah your right, they are 231hp (thats flywheel no?) so at the wheel it will probably be 189bhp as the tiptronic gearbox eats quite a bit of power up.

0-60 in something like 8secs is shifting it for a heavy diesel in a 5series though!!:D
 
mine starts coming on boost around 1500rpm, a standard puntoi jtd usually starts running out of steam after 3500rpm (mine will rev past 4000 easily, but there's no point changing up much after 3500, even if you are going for it) maybe the wastegate stuck closed or similar for a while, mine stuck open for a week in the autumn, and it struggled to pull 50 mph on the flat! Certainly cannot recommend you keep revving it past that though (what a contrast to my last car, a regal autosport modded cav V6, it came on power at 5000rpm!)
 
Just out of curiosity, can you turn the boost up in a TD so that you get that fast boost like in a petrol turbo? And can you fit a dump valve to the TD?
 
TBH, Ive not got a clue where I would find the 'Wastegate' to see if it opens freely? I will try to do the same with the car today and keep a close eye on rpm's.....

Im not sure what bhp version the car is... Insurance woud suggest the lesser. but is this car 'meant' to have a step in turbo? is this how the JTD engines works, because over the years I just thought it would have been a prgressive turbo, but after these two speed boosts, im not sure whats going on...

Don't laff if I come home tonight with a smoking engine after this trial :eek:
 
your ex chavalier, would have been petrol. We used to have a calibra V6 (back when they were classy in the early 90's and not as they are now, err chavvy), she didn't rev that much compared to other 6cyl motors that we have had since (albeit most we've had since have covered a fair few 'running in miles' and one of the latest ones (a 1996 audi a6) has a fully balanced bottom end, polished ports + gas flowed, uprated ecu, injectors, fuel pump n regulator, full custom stainless exhaust (exp back box as original is man enough as it was), she rev's to about 8500rpm quite happily, but is only really got any go to it after 4000rpm, anything below is just sort of lazy big dinosaur type yawns of torque and bellow. she absolutly howlls along :D )

Your TD will have a wastegate, otherwise it would blow up. Or do some serious damage to itself or engine TB etc.
I know a few people with citroen and peugeot diesels (hdi's) who uprate them, with dump valves etc, a bit comical really,as you get quite a smooth pull thru the revs followed by big flat spot (I mean you could loose africa in it!!) bang, huge bit of boost, then kawoossh, then a huge pile of black crap out of exhaust that chokes anyone thats following, pretty nasty, don't go there.
 
faster4_tec said:
Ermm maybe a really sticky wastegate? Have you had it since new? And is it the 90 or 130bhp version? the 90 is more about smooth progressiveness (as most TD's are very much ...... nothin nothin nothin nothin 130bhp, nothin nothin redline), the 130bhp ver is also smooth but not that smooth, it does come online hard at about 2600rpm, its there below that but not boosting highly.
Click to expand...

WTF :p

The Punto Mk2/ 2.5 JTD only came in two versions;

1999- Summer 2002:

80bhp @ 3000rpm, 145lb/ft @ 1500rpm. These are ELX/ HLX models

Summer 2002-Summer 2005:

85bhp @ 3500rpm, 145lb/ft @ 1500rpm. These are Mk2 Dynamic/ Eleganza Models and Mk2.5 Eleganza Models

You could consider the Mk2.5 HGT multijet also as 100bhp @ 4000rpm, 199lb/ft (?) @2000rpm (?)

Monkey has the 80bhp version.

faster4_tec said:
TBH all diesels really need a turbo to make em shift, an NA diesel are usually lousy, all except that stonking BMW 3.0 straight six NA diesel, I mean 189bhp, and 320lb.ft torque + is just amazing, no turbo neither. And they are as smooth as they get!! I tell you, a 330D is probably about as quick as an M3 during normal driving (i.e not on a track), and it does posses more torque than an M3. IN the 5series its also quick, and still my pick of the range (other than an M5 of course, saw one the other day, and got a sit in it, and drooool over the brakes etc, engine in them is massive
Click to expand...

WTF again :p

The BMW 3.0d in the 330d, 530d and 730d is a turbo model (despite the lack of a 't' in the name). Likewise the 2.0d in the 320d, 520d and 2.5d in the 525d. And the 535d is a twin-turbo 3.0d...

m0nk3y said:
but is this car 'meant' to have a step in turbo? is this how the JTD engines works, because over the years I just thought it would have been a prgressive turbo, but after these two speed boosts, im not sure whats going on...
Click to expand...

The Punto JTD is a low-pressure unit and so spins happily from low-revs. Mine pulled-well from 900rpm onwards and there was certainly no 'step' in performance that is typical of high-boost turbo engines. Even high-boost TD's have full back-pressure from about 2000rpm, so the 'kick' you are getting at 4200rpm is not down to the turbo suddenly coming on-boost. It is feasible there is a wastegate fault, but I think this is recognised as a fault by the ECU and so will illuminate the engine warning light.
 
Last edited:
No serioulsy, getting a boost in 4th gear.... Only kicks in at 60mph when i'm in 4th and got my foot down... Must be something to do with pressure/momentum, but deffo getting a kick.

feels like something is freeing up, but cant get the kick at all in 3rd gear, but tbh at about 2,000rpm 3rd is pretty damn nippy for a diesel anyway - So maybe its just more noticable in 4th for some reason...

Anyone else drive a JTD ELX... Ive never actally seen one on the road :confused:
 
no BMW ?30d is a N/A diesel engine, ?35d is the turbo/t-turbo varient which is seriously quick again. I can confirm the ?30d doesn't have a turbo as I have worked on one, in a 1999 530d SE.

And BMW don't believe in turbos, only turbo cars they have done are 2002TTi (which a guy in our village owns and races at retro meets) and the newest ?35d's. maybe one or two others but can't think of to hand, ahh yes the ?20d are often a TD, but not sure which
 
You must log in or register to reply here.

Similar threads

B
Technical 1.3 Multijet No turbo pressure at low RPM?
Replies
1
Views
460
bugsymike
B
toru
  • Question
Technical PUNTO HGT Please tell me.
Replies
4
Views
652
toru
toru
H
General End-of-life Punto - useful for parts?
Replies
4
Views
140
The Panda Nut
The Panda Nut
M
Technical Fiat punto mk2 1.3 mjet Sideights
Replies
6
Views
170
Matthew01
M
HGT outlaw
Technical Punto HGT Suspension
Replies
0
Views
491
HGT outlaw
HGT outlaw
Back
Top