this was done today boost is at 9lbs. were going to bump it up to 18psi but the boost controller wasent on the car so we ran it on the stock boost setting



baseline


after the tune




ill let you guys know how i does on 18psi tomorrow!

 

I think you have your days mixed... today is Saturday, tomorrow is Sunday. After 12:00 AM it's the next day.

 

Ouch, your car makes like 100 more whp than mine on the same boost setting...I need to ditch the twins :P ...and get a port job. Cant wait to see the 18lb run!

 

This is a half bridge with a T-78, yes? That is great power for such a low boost setting .

You should have your dyno operator manipulate the sheet so that the pulls start at 3000 rpms, not 4000. I for one am interested in the low end hp/torque of such a setup (or lack thereof).

Post the rest of your power mods!

 

the car redlines to 9000rpm. dunno why he set it to that but oh well




1/2 bridge, T78, 550cc injectors with 1600CC secondary, Apex Power FC, Koyo radiator, stock fuel lines, Jacobs Ignition, Hks exhaust with magnaflow muffler on the midpipe, Greddy profec B (putting on as we speak), NO AC Alcohol injection for high boost, 4 in intercooler, aeromotive FPR, AFR (11??) no knocking what so ever

at first i thought i was going to drive up to ohio to get my car tunned by RX7store, but i found one who tunes PFC in miami so there was no need

 

Sounds good man. Now how about posting some pics!!!

 

The torque curve looks very strange.

The torque continues to rise until 6800rpm. Is that how long it took to make 9psi?

Who is tuning the car? I would think you could hold 9psi past 6800.

 

the car makes full boost around 4300rpm


/\ i was thinking the same thing. wondering why it dropped before 7000rpm. most single turbo owners have continuing boost till redline?
tunning was done by Lopez Racing.

at 18psi i made 473hp i wanna post the dynosheet but i have to pm the guy who hosted my pictures before!


BTW rey my car looks the same no difference

 

What were your injector duties like at that power level (473)? What fuel pump?

 

nice. Got vid?! Man I want to see/hear this thing

 

thats good power. a 9k rpm redline must be pretty sick. congrats!

 

What kind of longevity are you going to be looking at? Ive heard that bridge/half bridge dont last as long as a normal port job, but no explanation as to why? Good power too, bet thats a blast to drive.

 

/\ dont see any reason why not. as long as the tunning is right & the guy who ported left enough material between the 2 ports!


Injector duty as around 67-71% with the 550cc (primary)& 1600cc (secondary) with supra fuel pump


just cant redline at 9 as much. but i can redline to 8500 all day long.

 

Who ported the engine? Hm, those injector duties seem low for that kind of power output.

Be careful of that supra pump at 18 psi if on stock wiring. Search for a thread i started entitled 'fuel system ramblings' for more info.

 

base fuel pressure??

 

'SOME fuel system ramblings'

 

/\ when i up the boost i was going to upgrade the stock fuel lines, everything else is practically new


mark from www.jhbperformance.com ported the motor


BTW rich i was going to go ahead & put an extra supra pump just in case