Author Topic: mk7 1.4 TSI dump valve  (Read 2379 times)

Offline golfdave

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Re: mk7 1.4 TSI dump valve
« Reply #10 on: 25 November 2020, 08:41 »
Excellent, sounds like a bit of a sleeper, always thought that 1.4 engine was a good little unit.

Unfortunately the higher output 140/150PS was only made for the R-Line or GT spec & it catches buyers out when they get the lower 122/125PS spec in an SE...

The Revo map doesn't state outputs for 98RON, & Revo never 100% claim you will get "X" power...BUT I know that mine before the remap was 167BHP & 267Nm....That was just Shell v-power, ITG panel filer, GTE blanking plate, & heat shielding the intake & turbo/TB pipes...& changing the oils & spark plug regularly & using top end Castrol 0w40 grade oil...(my engine is just on the older VW recommended oil spec).

Revo state 178 to 200BHP...& 292 to 327Nm.... & that covers 95RON to 100/102RON.....maps A,B,C,.....B is in the middle for 98RON...

Remember the 1.8T in the MK4 Golf & Audi TT....well the highest output from the factory was the Audi TT quattro with 236BHP & 320Nm....the MK4 GTI max was 177bhp & 235Nm

Also the GT 5dr hatch with this 1.4lt engine & a manual gearbox is 1300kg, the 220PS GTI 5dr is 1381kg, so the 1.4lt for similar spec with multilink rear suspension & "lowered" is 81kg lighter at the front!...which means better handling...

The estate version of the GT 1.4lt is 1354kg...so an additional 54kg at the rear!!.....my 1.4lt estate has a lighter nose weight & heavier rear...ie way better front/rear weight distribution than the GTI... :cool:....

« Last Edit: 25 November 2020, 08:54 by golfdave »

Offline Pretzel

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Re: mk7 1.4 TSI dump valve
« Reply #11 on: 25 November 2020, 19:02 »
Many years ago, I used to spend my weekends racing various cars. I was always impressed how simple 1275cc British Leyland engined cars were able to keep up with 1.8 litre cars BL cars. A combination of a very nimble engine and lighter weight cars.
Increasing bore and stroke to 1.8 litres didn't really provide a significantly better engine, especially with the extra weight.

I'm not sure if there are any significant improvements in the 140 (1.4) and 150 (1.5) TSi engines in the Mk 8 golf compared with the Mk 7.

Offline golfdave

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Re: mk7 1.4 TSI dump valve
« Reply #12 on: 25 November 2020, 21:34 »

I'm not sure if there are any significant improvements in the 140 (1.4) and 150 (1.5) TSi engines in the Mk 8 golf compared with the Mk 7.

more emissions equipment as far as I'm aware..that's the only difference between my 1.4lt 140PS & the later 150PS ACT....(cylindr shut off)....& the MK8 versions with the 1.5EVO is just emissions...basically enlarge the engine to run it leaner & more economic & get the same power output in all conditions..