43 replies to this topic

[Duncan VXR]

iVXT depends what you want from the car ref what turbo spec I would recommend and this does effect the cost of the turbo. Zacs on a 2871 spec unit running 372ft/lb torque flat across the rev range and 343bhp at 4.5k with full boost from about 2800rpm. Due to some minor issues to resolve (spark plugs and injectors) the car has not been back on for final mapping yet but exect peak power to go to approx 370bhp which imo is all you need for the road and would be VERY VERY quick Standalone main reason for use is I like 50% power at 50% throttle lol and a very controllable linear power delivery and also very easy / cheap for further upgrades and the option to limit boost in what ever gear you like to save your box and TC if you like. Should have 3 different spec vxt's completed by the summer and be in a better position to demonstrate the major benifits of the conversion. And when you factor in the cost of travelling to a lot of the tuners it almost pays for half the conversion I tend to supply hardware at whatever the trade cost ot me is but dont get masssive discount on turbos as I dont buy that many and possibly Nev may get a better deal? DG

[KurtVerbose]

Zacs on a 2871 spec unit running 372ft/lb torque flat across the rev range and 343bhp at 4.5k with full boost from about 2800rpm. Due to some minor issues to resolve (spark plugs and injectors) the car has not been back on for final mapping yet but exect peak power to go to approx 370bhp which imo is all you need for the road and would be VERY VERY quick

That sounds like a brilliant spec. Jeez, I hate the Swiss MOT inspectors.

[iVXT]

All sounds really interesting that. It will prob be a bit out of reach atm for me £'s wise I guess but I may get tempted in the future! On Zac's that you mention with the Garrett 2871 what other parts are needed to get a z20let to that sort of spec? Sounds like you've got a bit on with these packages to finish & the eddy30 that your doing as well. Be great to hear more as & when you have details. Cheers.

[zebwach]

Full details can be found on my project thread 'vxt operation garret'. But here is a quick list of things required. Garret gt2871 but enlarge the waste gate (thanks for that cms!) Full bottom end engine rebuild and balance Minimum of a 6 paddle clutch Inlet and exhaust manifolds Larger top hat Charge cooler 3 inch exhaust Uprated dump valve Adaptronics ecu inc cable throttle body Uprated fuel pump Duncan and Daves enlarged inlet pipe work with bigger air box Ngk iridium 8's Vxr injectors with higher pressure fuel reg or 550ccm injectors Also recommended Quaif atb diff Uprated suspension, arb's and brakes Light weight flywheel Balancer shaft deletion PA rad Under piston cooling Head refresh (im still on standard cams though) Think thats about everything. Zach