Rb25det R33 Full Boost Missing Problem.

[684NGR33]

Hey guys, as the title states when I'm wide open throttle on full boost (4000-7500rpm )it misses, coughs and splutters and does not perform at all pretty much all of the time, 95%. And also when quick shifting between gears at high rpm like you would when racing, it cuts out for a split second. Its only been happening after its re-tune. I've taken it back and he assures me its not detonating but thinks it could be cooler piping squishing or the fuel pump.....

Just after any useful input on how to solve the issue....

Mods are;

Id1000cc

Bigger rail

Sard fuel reg

Forward facing plenum

80mm throttle body

Lowmount replacement stock turbo

3" exhaust

445 walbro

Adaptronic ecu

Rollin automotive front mount.

Spitfire coil packs.

[Ben C34]

Well it's not tuned properly is it?

Should I guess what plugs, gap and coils you are running?

Did it ever run nice?

[hardsteppa]

Wait, all those mods, and.. stock turbo? Whats full boost, is your max/full boost the stock 7 psi or 25 psi...?

[Ben C34]

Cooler piping squishing?

Lol

[684NGR33]

.6 and spitfirre as said. And yes it ran right before the tune, im thinking he's f**ked something up in the tune and is too lazy to fix it so just making excuses. It's a China turbo, 15 psi

[admS15]

Dim sim turbo. There's half your problem there.