well took the car to get some new numbers with the 8psi setting. i have now got the technosquare ecu with all the basics and the emanage with a modified greddy stock table. with 8psi it hit 417.9 rwhp an 384.8 rwtq. it still supeer rich all the way to 5,500 rpm but we are going to adjust that overall im happy for now!

 

You can see where the stock fuel pump starts to lose pressure after 5500 rpm's ..... just like TS said it would.

 

i have walbro fuel pump with areomotive regulator not stock.

 

So the jump at 5500 is simply where it's still not tuned?

 

the jump is where it is tunned it doent go over 11.9 we have to tune down low to lean it out. down low is still the stock greddy map up top is where we did a quik 3 minute tune. at first 5500 and up were really lean then we brought it down to under 11.9 i didnt want it over 12 at all. i watch the fuel pressure guage on the regulator and it jus rises when into boost. im sure if i left the stock pump in there it wouldnt keep up with the 8psi setting at all!

 

Alfred,

You were mentioning yesterday at DynoTex that you will be going to the tracks last night. Did you go? If so , what type of numbers did you get.

 

we did not go to the track we were working on my friend alberts turbo mustang till 3 in the morning we are going friday for sure though. im going to be putting on some weld front runners im not going for et just yet im still on stock clutch i want to try to break a 120 trap speed. when i was at 6psi and dynoing 362rwhp i trapped 115 so i have about 55 more rwhp now i think it is possible. in my trans am with less power i traped 120 no problem the z is a much lighter car too!

 

Why is your stock Greddy fuel map so rich between 4-5.5rpm. Is that an area that you tweak or was the out of the box sutff. The richest mine got was 11.5 at 5psi. Also, did you tweak the entire fuel map when raising your boost, or did the e-01 compensate with more fuel automatically as it should.

yeah...by the way..can you PM me your phone number...I wanna talk to you live about this as I'll be tuning my car shortly.

 

Let me know when you head out there on Friday. I definitely wanna check that out!

 

Is the stock fuel pump sufficient for 8psi with the 440cc injectors?

 

i have no clue why it is so rich my greddy stock map was always in the 10's. we only tweaked after 5500. im going back next week so he can tweak the whole table i would like it the whole table to be around 11.4-11.9 the only thing i can think is that the regulator i put raises it 1psi of fuel for every psi of boost. i dont hink anyone has tried running the 440cc with 8psi to see if it leans out like the 380's do at 8psi. i just wanted to be safe so i upgraded the fuel.

amai i will pm if we are going for sure but im pretty sure we will be there!

 

Nice! Keep us posted. I can't wait to see some final figures when everything is dialed in. And please post SAE figures, too. I'm guessing you're probably about 405hp and 375 torque SAE corrected.

 

ok well we got texas air you knock about 7 hp off that. i guess lol... whatever it take to get me to 120 mph im happy!

 

Yes, your fuel pump and reg is definately making you run rich. Your entire greddy map needs to be adjusted if you change the fuel pump and reg.

 

Man thats a lot of power. I wish you luck tuning! I wanna see what this VQ can do!

 

like i said it was a quik 3 minute tune and i mean 3 min lol. next week im set up to get the whole thing tuned !i cant wait. im gonna get it tuned to 10psi since noone else is trying that out i will be the ginnie pig rods and pistons are on standbye jus in case!

 

Great #s. Keep us updated with the 10psi tune..

 

Geez, that engine has a really nice power and torque curve, the car must feel very strong. Compared to most of the power graphs of centrifugal superchargers I have seen recently you must be very pleased that you went with the TT system. Congrats......well done.

Peter

APS

 

the car feels very strong last night i broke the nitto drags loose in fourth! i love the weight of this car i raced my former car which has heads cam ls1 he hynoed 442 yesterday and he got me by a lil over a car im really happy with the way the car is running right now but its never enough. you know how that goes.

 

Now thats got to be a lot of fun.....sideways at 100 mph!

Peter

APS