Grande Punto col7104's Grande T-Jet

[SchooweeNick]

seems all too complex to me for the sake of 25-30 bhp over a standard Esseesse GP and tha Alfa Mito multiair 170 bhp uses it as standard so it cant be that bad a turbo! Granted I dont suppose it would be much use on an old Evo but I'm guessing that the Esseesse GP and Mito wont be demanding a rebuild after each drive to work and back?

If that turbo is available for £200 you need to be arranging to order them as you could make a fortune on them!!!!


But anway Col I'm sure it'll be grabbing the FF headlines tomorrow.:devil:

 

[col7104]

Turbo is a small Garrett they retail at about £200 in the USA, but yes slightly bigger than T-jet turbo.

Forgot to add, the Garrett turbo on these cars is pretty small.

Said so in the first post . BTW I haven't said anywhere that the SS turbo is particularly large; it is in relation to the T-Jet unit. Should we be worried for the longevity of the T-Jet guys knocking on the door of SS power?

I imagine the evo turbo is pretty large, but isn't this more a function of having to fill an extra 600cc (have to excuse my evo knowledge...I think they're 2-litre)?

Interesting points and noted.

But anway Col I'm sure it'll be grabbing the FF headlines tomorrow.:devil:

Hopefully not because of a blown engine eh

 

[col7104]

The engine cover is in the way partly so I can't get decent pics, but I can say that Hayward and Scott have done a very impressive job.




I'll get some better pics once the car's been cleaned and the engine cover comes off.

Not much else achieved today though as it happens...

With the original T-Jet map the car ran c. 195bhp and c. 240 ft-lb torque. IIRC the peak boost was 21psi. Fuelling was OK (so all my slow driving was actually not needed ). When we revised the map the car boosted to 26psi (too much) - the ECU logged an error code and stopped the car from boosting above 15psi after that. The code reader thingymajig was out on loan so all we could do was call it a day.

However, when I got home my mate said he happened to have just such a thingymajig and after clearing the code the car was back to it's usual self. Shame it's not at Red Dot anymore so the mapping refining will have to wait until next week or so.

Can say that 195bhp is quite pokey though :yum:

 

[robm1987]

Very impressive, keep up the good work 195BHP :yum:

 

[CLXCraig]

195 on a stamdard map is very good. the new map should be very good indeed!

 

[Oldschool]

On my way back from Northampton I passed by at Tony's and had a look at the graphs and we discussed the situation. There is quite a bit more power left in the set-up. The problem seems to be in the T-Jet ECU.

 

[grande bolt]

it must go like stick. i know my dose and its a diesel yours being a petrol will be even faster . bet you cant wait for the map now. my bet is on 215bhp

 

[tim1989]

can i come down to reddot for a ride when you get the remap done prety please:worship:

 

[J333EVO]

Said so in the first post . BTW I haven't said anywhere that the SS turbo is particularly large; it is in relation to the T-Jet unit. Should we be worried for the longevity of the T-Jet guys knocking on the door of SS power?

I imagine the evo turbo is pretty large, but isn't this more a function of having to fill an extra 600cc (have to excuse my evo knowledge...I think they're 2-litre)?

Interesting points and noted.



Hopefully not because of a blown engine eh

You have got it back to front. The larger engine fills the lungs of the larger turbo quicker meaning it spools up quicker, hence most smaller capacity cars use smaller turbos so to avoid lag. But a bigger turbo works less hard and therefore produces a cooler charge and can maintain a higher level of boost longer as cooler charge means less chance of detonation. So when you want to get consistent and reliable power you need a bigger turbo working less hard, but you get the lag. This is why things like the FQ400 EVO has lots of lag compared to a standard FQ 260 as to make & maintain the higher power reliably it uses a much bigger turbo.

What was the power output at the wheels as I assume the 195bhp quoted is a calculated flywheel power?

I would look at the compressor map for the turbo as you are running 21psi, thats 1.5bar of boost. Owen Developments use a roller bearing turbo on there Punto GT conversions which means it is a minimum of a GT25 to get 230bhp, I guess that the Garrett turbo you have (I can check when I'm in workshop as have Abarth data for Trofeo series) will be something around GT15/17.

http://www.owendevelopments.co.uk/products/product-detail.asp?prodId=81&catId=3&subId=-1

Car's looking good though

 

[higgsy]

That car is looking sweet as

The back linear really makes it look so much better

 

[SchooweeNick]

Just thought I'd take a snap of the 150 (Abarth & Bravo) Tjet turbo alongside the Esseesse one for comparison..

 

[Oldschool]

Just thought I'd take a snap of the 150 (Abarth & Bravo) Tjet turbo alongside the Esseesse one for comparison..

I take it the right one is for the EsseEsse.

 

[grande bolt]

Any luck with the map mate.

 

[Si - Punto]

So close Col, looking forward to the finished article mate

 

[col7104]

Thanks guys, getting there!

Still yet to get a date for mapping so no updates on that front.

Managed to sneak the car out and wash it before the rain came back again (hardly stopped raining all week) . Which, of course, means pics of the exhaust

 

[trich926]

i want 195bhp

 

[Andy The Gardener]

Look superb in those pictures

 

[SchooweeNick]

I can testify that it is bloody quick even without a proper map! Gonna be a beast.!! And that big turbo sounds EVIL!!:devil:

Oh and thanks for the :yum:vodka:yum: by the way I cant remember if I thanked you the other day?

 

[Oldschool]

Oh and thanks for the :yum:vodka:yum: by the way I cant remember if I thanked you the other day?

Shouldn't have drunk it in one go.

 

[punto_matt]

Looks good! I want that exhaust :yum: