VW Golf GTI PTE6266 877Hp. Fiat Grande Punto 1.4 T-Jet - Garrett GT2860R. Garrett GT2860R. Stock engine specs. Capacity: 1368cc bore x stroke: 72 x 84 (mm) Compression ratio: 9.8:1 Turbocharger: IHI Vl37. Full boost: 1bar@2000 rpm Constant pressure:0.7bar Pressure at revlimit:0.4bar Revlimit: 6500 rpm. Power: 120hp Torque: 200Nm. Lots of people upgrade the turbo to either a vl36 (abarth gp) or a vl38 (abarth 500) as the standard vl37 is small and runs out of puff at high rpms. Fiat Punto Engine Upgrades & Performance Tuning Engine Remap for Fiat Grande Punto (1.4 T-Jet 120 bhp, 2005-2010) MAP4737 MAP4737. BHP increase: +41 Fiat Grande Punto 1.4 T-Jet -191HP 367NM - DYNO TEST with IHI Turbo Domeworks - Race Passion 12.7K subscribers Subscribe 66 Share 9.2K views 4 years ago Thanks for Watching, Subscribe It's not so good it's just the best/safest choice to upgrade and closer of making an abarth setup maybe. Forums New posts Featured threads Search forums Members list Thats what I thought too but standard my car was 124bhp with forge induction. Different places give different figures, doesnt mean my car is slower than a red dot remap, which there standard power and remap power seem to be high when rolling roaded there. Its about how there rolling road is hi, mi name is Ricardo, I race the mexican rally championship and we are seriously thinking about racing a couple of gp's 1.4 t-jet. I wolud like to know if you know something about suspension upgrades and any way to get some extra hp's. the car is new here in Mexico so there's not much Location. Newcastle Upon Tyne. Nov 27, 2010. #1. Hi, After searching the forum and not finding much, I thought I'd ask here. Where can I get a workshop manual for the T-Jet? The ones on ebay seem to cover every GP engine except the T-Jet. Or if possible just a turbo removal/replacement guide as that's the main part I'm interested in really! R8yTTDh.