B16A T3/T4 6PSI 203WHP 139TRQ

Post by **Bugermass** » Tue May 05, 2009 12:12 pm

you may have enough fuel but your timing values would be way too much since you more than likely did retard per PSI from atmosphere.

b20beast · Post by **b20beast** » Tue May 05, 2009 2:18 pm

Bugermass wrote:you may have enough fuel but your timing values would be way too much since you more than likely did retard per PSI from atmosphere.

im not 100% sure its getting a wrong map signal changing the 5-8psi cols, changed afr as well.

Post by **Bugermass** » Tue May 05, 2009 10:46 pm

... If its reading the 8psi columb and you change the 8psi columb it will cause a change in AFR, but lets say hypothetically that at 8PSI the MAX timing you can run is 22deg and at 12 PSI its 18deg.. now if the map sensor is only reading to 8PSI and your really at 12PSI the ECU thinks your at 8 so your gonna have 22deg of timing at 12psi .. which could blow your motor.. Make sence?? sure you can tune the 8PSI columb to safely run the car at 12 ACTUAL psi, but I doubt that you did that so if your boost was actually higher than what the map sensor could read then you were probablly running more timing than what the motor could tolerate. I'm not saying for sure this is what happened, just that its possible and sounds like it may be what happened based on what you described..

patrickjr · Post by **patrickjr** » Wed May 06, 2009 5:43 am

i though that shock map will stop at 11.31 now before i turn on boost cut it would stop me if i got over 11.31 but now i have my boost cut at 11.00 and it does good

b20beast · Post by **b20beast** » Wed May 06, 2009 8:43 am

Bugermass wrote:... If its reading the 8psi columb and you change the 8psi columb it will cause a change in AFR, but lets say hypothetically that at 8PSI the MAX timing you can run is 22deg and at 12 PSI its 18deg.. now if the map sensor is only reading to 8PSI and your really at 12PSI the ECU thinks your at 8 so your gonna have 22deg of timing at 12psi .. which could blow your motor.. Make sence?? sure you can tune the 8PSI columb to safely run the car at 12 ACTUAL psi, but I doubt that you did that so if your boost was actually higher than what the map sensor could read then you were probablly running more timing than what the motor could tolerate. I'm not saying for sure this is what happened, just that its possible and sounds like it may be what happened based on what you described..

makes alot of sense so i should get her on the dyno asap when tuning next time to be safe?

Post by **Bugermass** » Wed May 06, 2009 8:58 am

yup..

I've seens stock map sensors read 11PSI, and I've had them stop reading as low as 7 PSI. Most of them seem to stop reading around 9-10 PSI, I rarely see 11 .. So just keep an eye on it.

b20beast · Post by **b20beast** » Wed May 06, 2009 9:00 am

Bugermass wrote:yup.. I've seens stock map sensors read 11PSI, and I've had them stop reading as low as 7 PSI. Most of them seem to stop reading around 9-10 PSI, I rarely see 11 .. So just keep an eye on it.

So its possible it went to 12psi and only read 8psi because of its limitation.

Post by **Bugermass** » Wed May 06, 2009 6:37 pm

exactly..

RoadXY · Post by **RoadXY** » Thu May 07, 2009 5:14 am

Maybe because it's not supposed to read those value's since Honda doesn't make turbo engine's?

Post by **Gaskleppie** » Thu May 07, 2009 5:21 am

RoadXY wrote:Maybe because it's not supposed to read those value's since Honda doesn't make turbo engine's?

Calvin solved that problem long ago

b20beast · Post by **b20beast** » Thu May 07, 2009 8:43 am

What is a safe boost level / HP for my setup on 91Pump Gas T3 T4 60 Trim / .63 AR SRP Forge Pistons Eagle Rods?

b20beast · Post by **b20beast** » Thu May 07, 2009 2:58 pm

Got back the cylinder head from machine shop. It was pressure tested and it has a crack in the head. IS this a potentional problem. could cause the detonation/damaged piston?

b20beast · Post by **b20beast** » Sat May 09, 2009 8:35 pm

just finished disassemble the block im tired! so heres the deal. broken ringlands on all 4 pistons also found a broken 'valve spring' inside the cylinder head!

b20beast · Post by **b20beast** » Fri May 22, 2009 10:08 am

i got a datalog if that would help answer any questions?

Post by **calvin** » Fri May 22, 2009 11:43 am

post it burgermass is the best and have a look.