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It turned out to be a combination of lambda sensor which showed up at 4500 rpm on dyno which gave 7 degrees of timing and plugs were to hot for the mods.

Yes at Reidy remaps yeovil it was a custom map but could not get it to hold 1.5 bar after 3700 rpm kept dropping down to 1.1 bar I am going to try a slightly stronger dump valve spring as I think its opening to early. I agree about dropping off later but 3700 rpm is not right peak power should...

stock ecu but remapped hits 262.4 bhp at 3700 rpm and 292 ftlbs torque which is great. but instead of the torque curve climbing and starting to drop at about 5800 rpm like it should. you on the dyno readout a wavey line where it trys to hold 1.5 bar then drops to 1.1 bar then up to 1.5 for a...

anybody know what a seat leon cupra r 225 bam engine 2004 should boost to? my turbo was rebuilt with with a bigger compressor wheel and machined housing anyway. the issue is it boosts to 1.5 bar upto 3700 rpm then drops to 1.1 bar on the dyno it looks like a hacksaw blade up and down it sort of...

no all silicone inc tip so ruled that out

yes took it to aed advanced engine dynamics in wyke regis they have done a smoke test no leaks. i have changed the n75 to a j type fitted a forge actutator with a 24 psi spring fitted. the turbo has been totally rebuilt again this time with a mitsubishi comp wheel its goes like stink pulls 1.5...

just tuned my seat leon cupra r bam engine.had the k04 turbo rebuilt with a larger compressor wheel complete engine rebuild inc intergrated engineering con rods.with full exhaust system inc tubular manifold and new n75 valve f type.when took it to get mapped on a dyno it holds 1.5 bar boost upto...

it has a twin cat same as mine i have a 2004 one just replaced with a cobra turbo back sports cat nice mod but not cheap at £410.00

as from previous post just changed shocks to koni str.t with h & r springs and whiteline rear anti roll bar made a great difference to handling. it was good before now its great no more under steer when pushing it in corners. a great little mod set roll bar on middle setting seems fine well...

just brought a seat arosa 1.4 16 v sport 100 bhp model. what a little cracker of a car changed exhaust manifold for a decat manifold £148.00 OF EBAY. wrapped in titanium wrap great stuff no itching like the cheaper stuff. tryed a k & n panel filter good response. thought i would try a k & n cone...