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Thread: Pro-touring 72 Camaro SS
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11-23-2017 #81Registered User
- Join Date
- Oct 2016
- Posts
- 556
Hey guys ! finally the car is running perfectly sequential fuel injection and COP ignition, I share my settings, it works incredibly well for E85 without knocking ( base intial timing is 10 and 32 total for standard gasoline ) and I will auto tune the VE table this WE feel free to ask me some questions
MS3-Pro EVO is really a good ECU and customer service is perfect !
next step will be how to fine tune for running flex fuel with table bleeding and switching, over-run fuel cut settings, kncok sensor settings...Etc
and last big buy soon, the Speedtech chicane full floater axle with their torque arm sway bar and a 3-piece hollow sway bar for the front end
about the AFR table, it's seems a bit rich above 105kpa but there is a difference of 0.5to 1 point AFR between the target AFR and the true AFR, so I've set it as shown to achieve about 12-12.5 AFR, the boost with 5 psi springs go up to about 7 psi springs ( 150 kpa )
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12-03-2017 #82Registered User- Join Date
- Oct 2016
- Posts
- 556
Hey everyone ! Unfortunatly for me the guy who sold me the 4 speed nascar gear box 3 years ago lied to me so it's just a weak super T-10 that will not hold a long time the new torque generated by the turbos !
so next week I will order the Speedtech full floater axle with a wavetrac diff and a 3.50 gear ratio and later I will be compelled to order a new transmission, my choice is the TKO-600 Xtrem rated at 950ft/lbs with a 0.64 final ratio, so at 81 mph ( 130 kph in France ) the rpm will be lowered from 3300 with the 4 speed to 2350 with the 5 speed trany and mpg will be increase and max speed too at about 210mph at 6000rpm.
I'm not interested by a t-56 magnum cause it's too heavy and I don't want to spend my time to shift
about priming and cranking pulse, these new settings work better at cold start close to 0°C, for priming pulse I can't go above 65ms and for cranking pulse it seems to be fine for the moment, maybe still increase a bit under 20°C
01-20-2018 #83Registered User- Join Date
- Oct 2016
- Posts
- 556
hello Guys ! several good news today, with Speedtech Performance I will finalize and order the new Chicane full floater axle next week, I choose a wavetrac diff, ZR1 race hubs with wheel speed sensors, I will unlock the launch control option with the MS3-Pro EVO ECU, rear end ratio will be 3.25, the torque arm sway bar and finally I will buy a T56 magnum close ratio, I don't care the max speed but I want the 2nd and third gear be streetable and at 81 mph ( max speed on french highway ) the rpm will drop from 3300 with the 4 speed trany to about 2200 with the T56.
about the engine, it's running like a champ at 7.4psi of boost (always with 5 psi springs ) and ethanol, with some maths I can estimate the new power from 470 to 500 bhp. Yesterday I've ssen a video from Motor trend episode 26 : "How much boost can a stock engine take" they put 24 psi of boost on a stock 350 sbc and it was still alive ! 14 psi of boost with 30 degre of timing and 118 octane fuel,I love what they do ! I will try witout changing the piston ring end gap.
https://www.motortrendondemand.com/d...e-/0_tdqd27lw/
now I will try 9.5 psi of boost ( 7 psi spring ) and finally 14 psi of boost ( 7 + 5 psi spring ) and see what happen, with E85 at 7 psi of boost it works really well with 34 degree of timing, now I have 37° total timing, start to remove timing at 4psi of boost by 1.5° per 10 kpa ( 1° per 1 psi ) and 26.5° at 100kpa of boost, if it works I think it will go over 600hp
here is one example of log, the self learning does his job really well, now in cruse the difference between the target AFR and real AFR is 0.0-0.1 and in boost situation less than 0.4.
rpm 5490
fuel consuption 258.6L/h
34.5° total timing
148.8 kpa
12 AFR
MAT 77°F
water temp 185°F
130% VE
7.4 psi of boost
with 0.85 theorical BSFC, we can etimate about 475bhp
on the VE table, the 180-210 kpa area is not already tuned and the area between 600-1800 rpm form 120 to 210 kpa is completly wrong but we don't care it's not used
01-20-2018 #84Registered User- Join Date
- May 2015
- Location
- Island Lake, IL
- Posts
- 815