General TD04 questions

[cwspellowe]

Well.. considering your idle will be what, 800-1000rpm? My 56 is tunning 24psi at the mo, 20 of which come by 2.25krpm. Say yours did the same, you'd get 2.25krpm of useable boost, two thirds of your rev range. I'd say that's pretty respectable. It builds boost so quickly, mashing the pedal just lights the wheels up and to be honest, it's pretty useless in 2nd and even 3rd in the wet. My camber won't help that, but I can't wait for dryer weather to really test it.

My only concern is i'm still building confidence in it after killing two in quick succession. I know why they died each time and shouldn't be taken as a reflection on the turbo's reliability, first time was my fault for not assembling properly, second time was my fault for running as much fuel as the pump could handle and de-wastegating the turbo. Still, it's taken me a wee while to get the confidence to push the blower more and more. It should be fine at 24psi though, could probably take more, but after spending over £300 on the latest one, and about £700 in total on three blowers, it's got to the point of erring on the side of caution

I was in the same position as you with the blower though. Ruan had suggested it to me and noone on here (as far as I know?) has run the same turbo, so it was always going to be an experiment, it seems to be paying off but won't have any way of knowing until it's properly dyno'd.

I'd say in terms of spool time and torque delivery though, it's the closest thing to a VNT you're going to get. hotside/compressor ratios seem perfect for these engines. My pump's only mildly gov modded and I barely take it to 5krpm, so pretty similar to you.