Is my 1.4 TSI a twincharger?

seatram

Active Member
Sep 8, 2017
120
63
Ilkeston
So I have a 1.4TSI 125 FR, how do I know if it's a Twincharger? (Supercharger and Turbo)

It feels like it has a Supercharger as from 1500 revs in 2nd it will pull hard (my first car so I don't know what true power is like you lucky Cupra owners).
 

nuvolablue

Active Member
May 1, 2017
118
14
Don't think Seat do superchargers. As far as I am aware it's just a Turbo....... Bloody good one though.

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seatram

Active Member
Sep 8, 2017
120
63
Ilkeston
Don't think Seat do superchargers. As far as I am aware it's just a Turbo....... Bloody good one though.

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Hmm, I'd read somewhere though that the 1.4 TSI 125 is the Volkswagen twincharger engine, cos it comes with the torque of a 1.6 Diesel engine
 

seatram

Active Member
Sep 8, 2017
120
63
Ilkeston
I had the 1.4 TSI in a Fabia VrS and that was twincharged but bloody thirsty on oil!

If your engine code is CAXC, It should be twincharged.

I'll check that then, I've checked the power and torque figures and they match to the twincharger according to various websites. so I'm 99% sure it is
 

SRGTD

Active Member
May 26, 2014
2,679
1,528
Pretty certain the engine in your car will be a turbocharged and not twin charger engine.

With VAG’s unhappy experience of using a 1.4 twin charger engines in some of their smaller performance cars 2009 - 2013, I doubt they’d make the same mistake again.

This thread gives lots of detail of the problems associated with the twin charger engine referred to above.

http://www.seatcupra.net/forums/showthread.php?t=407682&highlight=Cave
 

SRGTD

Active Member
May 26, 2014
2,679
1,528
Twin charger was in the Ibiza cupra, fabia vrs, and polo got 1.4 CAVE and CTHE codes. Nowhere else.

Yes, that was my understanding. It was just the 6r 1.4 Polo GTI model within the Polo range that got the CAVE and CTHE twin charger. It was also used in the Audi A1 (1.4 185 S Line).
 

seatram

Active Member
Sep 8, 2017
120
63
Ilkeston
Yep, I understand what VAG have done, example below.

Wikipedia;-

90 to 96 kW variants — two-part plastic intake manifold, turbocharger incorporated in exhaust manifold with maximum boost pressure 1.8 bars (26.1 psi), water-cooled intercooler integrated into intake manifold

103 to 125 kW variants — multi-ribbed belt-driven fifth-generation Eaton Roots-type positive displacement supercharger operated by a magnetic clutch integrated in a module inside the water pump, internal step-down ratio on the input end of the synchronisation gear pair, and KKK turbocharger with integrated wastegate connected in series, administrated by a control flap, 2.5 bars (36.3 psi) pressure at 1,500 rpm, front-mounted intercooler (FMIC)


Mine is part of the 90 to 96 kW range
 
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salsajoe

Active Member
Apr 12, 2017
130
13
Yorkshire
My Scirocco was a twin charger. Twin chargers were all 1.4TSI with 160+BHP so yours is not a twin charger. Lovely engine and chassis (wider wheelbase than the Mk6 Golf GTI) and gave me no trouble at all in the 65k miles I had it. Had stage 1 that gave me 180BHP and a good level of torque from about 1200rpm. The supercharger power was reduced as the turbo spooled up and became all turbo from 3500rpm. Very good design that was poorly implemented by the VAG group. Mine used no oil. Oil change every 6 months or 5kmiles, Shell Vpower most of the time. Very early ones had problems with incorrect sparkplugs and gaps and poor quality pistons. Mine was later. One of the lucky owners I guess.
 

seatram

Active Member
Sep 8, 2017
120
63
Ilkeston
My Scirocco was a twin charger. Twin chargers were all 1.4TSI with 160+BHP so yours is not a twin charger. Lovely engine and chassis (wider wheelbase than the Mk6 Golf GTI) and gave me no trouble at all in the 65k miles I had it. Had stage 1 that gave me 180BHP and a good level of torque from about 1200rpm. The supercharger power was reduced as the turbo spooled up and became all turbo from 3500rpm. Very good design that was poorly implemented by the VAG group. Mine used no oil. Oil change every 6 months or 5kmiles, Shell Vpower most of the time. Very early ones had problems with incorrect sparkplugs and gaps and poor quality pistons. Mine was later. One of the lucky owners I guess.

I was annoyed cos I thought I had a unique engine :( but now after reading about all the issues I'm glad its a common engine! This seems to pull nicely anyway, from 20 in 2nd I'll hit 50 in no time. I can't wait til I can get a more powerful version :D
 
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