Any Suggestions?????

[MaxDoc]

Ok here is the scoop.... For the past 12 months my son and I finished building his new motor put it in and finally have it broke in. Took it to the dyno, and on the first run it ran to 7k and died, spitting out a rather long flame through the back. Started the car and tried a second run, same thing. Thought at first the lifters were collapsing causing the valves to not open all the way at the 7k mark. Checked that out and nope not a problem. Started the car for a third run and this time we had a timing light on the crank during the run. The car advanced timing properly right up to 7k then RETARDS to 0 degrees TDC right at 7k!!! WTF... The AEM EMS shows the car advancing AND holding timing right up to the 7k mark but the crank says different. We did the diagnostics on the AEM, CAS and TPS but all checked right to specs. This has us completely confused. The only bright side to the story is the fact that at 6800 rpm and 18psi the car put out 425 RWHP. Our original goal was 500RWHP so considering what is going on these numbers are encouraging that our goal will be met and exceeded.

I am open to any suggestions at all....

Here is a list of what the car has and all we did this past 12 months.... Motor: * Redtop S13 SR20DET * Blitz FMIC kit (23"x10"x2") * 3.5" Stainless exhaust from the turbop to the HKS 25th anniversary cat-back) * KOYO 2-core racing radiator * dual FAL 12" fans * Greddy Catch can

Drivetrain: * Tein HE coilovers * Front/Rear strut tower bars * BuddyClub P1 wheels (16x7.5 front and 16x8.5 rear) * Mickey Thompson 26x10.5" drag radials * Whiteline polyurethane bushing kit * 180sx VLSD * LS Auto Chromemoly 4340 axles * SPEC Stage 3 (6 puck clutch) * Fidanza lightened flywheel * Driveshaft Safety loop

Intake/Fuel: * Greddy intake manifold * Custom top feed fuel rail w/ -8 fuel fittings * MSD top feed 96/lb injectors * Twin Walbro 255lph fuel pumps staged at 3psi of boost * Aeromotive FPR * AEM EMS * Splitfire DIS coilpack kit * -8 Stainless braided teflon fuel feed line * -6 Stainless braided teflon fuel return line

Turbo/Manifold: * Precision PT67 turbo (T4)...polished the housing to look like old Turbonetics turbo. * Sublime Speed Tech 4" intake pipe w/ K&N filter * Sublime Speed Tech Top-mount Stainless steel exhaust manifold * Tial 40mm wastegare with 1.0 bar spring * Tial racing blow-off valve

Built Motor Specs: * Block has been cleaned, decked, and balanced * bored 40 over and powerhoned * crankshaft has been micropolished * Wiseco pistons (9.0:1) * Eagle rods * ARP Head/Main studs, fasteners, etc. * Power Enterprises 1.5mm metal headgasket * Ferrea double-valve springs,titanium retainers, seats * Tomei Rocker Arm Stoppers * HKS 272 Step 2 cams * HKS Adj. cam sprockets * Comp. 5-angle valve job w/ radius entryHelp an old man before this car puts him into the dirt. MaxDoc

[dandanthe240man]

sounds like 2 me something in your ECU is not properly tuned.try retuning the whole thing.That is one problem with completly redoing the motor all at one time and the trying work all the bugs out of it b/c there is so many new things that have been installed..good luck