Technical Power upgrades for 1.9 JTD

[mars103]

I own a Fiat Punto 1.9 JTD and it has approximately 85 BHP,

Alfa Romeo put the 1.9 JTD engine into the Alfa Romeo GT but the same engine develops approximately 140 BHP, (fiat figures)

I know that Fiat detuned the engine from 115 BHP to 85 BHP.

I understand that if you put the ECU from any other car that has the 1.9 JTD engine with 115 horse power into the Punto you can easily achieve 115 BHP.

I was thinking could you put the ECU from the Alfa Romeo GT into the Punto and get 140 BHP???


By the way my car is a mk2 Punto 3-door 1.9 JTD ELX


any help would be great thx

 

[arc]

speak to these guys: http://www.angeltuning.co.uk/

 

[mars103]

thanks for that

realy helpful

 

[JTD Monkey]

The 140bhp engine (and 150bhp) in the Alfa/ Fiat/ Vauxhall/ Saab range is 16-valve, rather than the 8-valve in the Punto. Fiat only go up to 120bhp with the 8v engine. The two engines are quite different

p.s. your Punto has 80bhp (@ 3000rpm); 85bhp (@ 3500rpm) came with the 2002 facelift when 'ELX' became 'Dynamic' and 'HLX' became 'Eleganza'

 

[gregit]

I remember a post on here once about this.

I believe the turbo on the Punto Jtd is smaller than that found on the Stilo and Multipla; and it also wouldn't fit onto the punto as the head is slightly different.

80 bhp soon becomes very slow!! Other things keep cropping up at the moment though.... Cos I really do want that re-map to 115bhp !

 

[gregit]

http://www.performancecentre.co.uk/p/sv_c.asp?VC=FTPUN02

Worth a look......

 

[JTD Monkey]

I remember a post on here once about this.

I believe the turbo on the Punto Jtd is smaller than that found on the Stilo and Multipla; and it also wouldn't fit onto the punto as the head is slightly different.

I think the 115/ 120bhp engine has a variable geometry turbo.

 

[nelgrah]

I put a psi powerbox on my 80bhp JTD and it transformed the car into a rocket. Benefits of the box are it's removeable (5mins) therefore doesn't effect warranty. Power can go upto 118HP which is sensabile. Go much higher and you'll be buying new turbos etc. Contect me for a demo of my box which cost £350 new when I bought it. Neil

 

[nelgrah]

Ooph my e-mail is [email protected]

 

[arc]

I think the 115/ 120bhp engine has a variable geometry turbo.

whats one of them?

 

[wolfracepunto]

Something to do with the vanes in the turbo spreading out or closing inwards?? Im sure mine has one of those

 

[JTD Monkey]

Something to do with the vanes in the turbo spreading out or closing inwards?? Im sure mine has one of those

They do, and it does!

The angle of the vanes change throughout the rev-range. I think it's a bigger turbo that has shallow-angle vanes at low revs, so the back pressure isn't massive and therefore the turbo spins earlier (like a low pressure turbo). The angle changes as the revs increase in order to create more pressure once the turbo is spinning (like a high-pressure turbo). I'm 99% sure the 105/110/115/120bhp JTD has it and I know the 80/85bhp doesn't. I don't think the 100bhp (Doblo, Bravo/a) has it either, just a fixed-vane.

As Wolfrace say's, the 130PD engine in the Fabia vRS has it, as does the 150bhp and 110/ 115bhp version of the same engine. 90 doesn't, but not sure about 100/105

 

[wolfracepunto]

They do, and it does!

The angle of the vanes change throughout the rev-range. I think it's a bigger turbo that has shallow-angle vanes at low revs, so the back pressure isn't massive and therefore the turbo spins earlier (like a low pressure turbo). The angle changes as the revs increase in order to create more pressure once the turbo is spinning (like a high-pressure turbo). I'm 99% sure the 105/110/115/120bhp JTD has it and I know the 80/85bhp doesn't. I don't think the 100bhp (Doblo, Bravo/a) has it either, just a fixed-vane.

As Wolfrace say's, the 130PD engine in the Fabia vRS has it, as does the 150bhp and 110/ 115bhp version of the same engine. 90 doesn't, but not sure about 100/105

Man of all knowledge :worship:

 

[arc]

thats clever, who makes them then?

edit: monkey, a smart owner.. but its standard? sort that out!

 

[wolfracepunto]

Garrett?

 

[JTD Monkey]

Garrett?

Indeed they do.

edit: monkey, a smart owner.. but its standard? sort that out!

We have the 44bhp pure which is the basic model. It has a storming 44bhp but can't simply be remaped like the rest of the range as it has a mechanical restrictor (cycle valve) that requires modifying (by-passing) otherwise all the 'mapping' in the world will make no increase on the 1.4b (inc. Atmospheric pressure) the turbo runs at. The mod can be done, but it generally gets c*cked-up and therefore it ruins the engine (Monk, a Panda driver, who contributes to this forum will be able to tell you all about that and how you should ensure the actuator doesn't spin freely ). The 'pulse' or 'passion' are much easier in that respect. Their standard 61bhp (54 for the 599cc passion) can be increased to 85-odd bhp without further mods.

Our car (The Stig) is being kept as smart created him; however, in a couple of years we will get another smart (probably a cabrio pulse or passion but it must have leather) and may do some minor mods on that (de-lip, K&N, wide wheels if it's a passion etc. etc.). We will keep 'The Stig' forever, mind, as a totally standard pure!

 

[Catseyes]

The main problem with this car is that you eat clutches like no mans business.

Red Dot have a very quick option which scared me AND my fella when Andrea took us for a spin to mcdonalds.

IIRC Andrea said it was a hybrid turbo with the internals of either a T22 or T25 (I can't remember which one) but either way it was the fastest car I have been in with the second being a tuned HGT with 150-160bhp this was much quicker than the HGT.

Sorry for the lack of offical figures but I simplyly cannot remember them.

You guys forget I'm just a girl

 

[wolfracepunto]

You guys forget I'm just a girl

Oh no we dont

 

[arc]

yeah, i know about the cylce valves on the pure - and they're a bugger, i know munk too and remeber his pure tinkering going slightly iffy!

http://tackycheese.net/gallery/main.php?g2_view=core.ShowItem&g2_itemId=4823

^^ that belongs to a mate of mine.

Wasn't replacing the cycle valve covered quite well in smarttimes, i forget now!

Gone slightly off topic think, should carry this into pm methinks!

 

[alfanige]

I put a psi powerbox on my 80bhp JTD and it transformed the car into a rocket. Benefits of the box are it's removeable (5mins) therefore doesn't effect warranty. Power can go upto 118HP which is sensabile. Go much higher and you'll be buying new turbos etc. Contect me for a demo of my box which cost £350 new when I bought it. Neil

What a load of crap.

The JTD Punto is capable of running much more than 118bhp, we have had ours at 150bhp and usually run it at 135bhp. You cannot get over that with just a tuning box as its only doing half the job.

We also do the tuning boxes, only for £255 not £350! No one has bought one over a remap