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#1
11-15-2004, 03:44 PM
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Just Dyno'd-need help Jeckyl
Well i finally go to a dyno and solved some problems but created others. Well the car made 338hp and 272lbs of torque @ 1.12 bar. However now there is a bad stumble when the rpm's are from 4500 to 5500 and then pretty much clears up after that. It does it whether the boost is at 14-20 lbs. A/F stays in the 12's the whole time and then the graph just shows peaks and valleys in the 12's in that RPM range. I dont know what could be causing this, but is not much fun to have a fast car that stumbles, thanks for the help.
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93 MR2 Turbo-.20 over JE pistons,T3/04E 57 trim w/.63 AR,Intake,Greddy profect b spec 2 BC, APEX'I GT spec exhaust,Apex-i S-AFC, Turbo timer,550cc injectors,HKS trunk mount IC, B&M s/s,SPEC stg3 6puck clutch, TRD springs. Autometer gauges, PCP reverse indiglo gauges. P/P head,Intake, 17" SSR repl, Kaminari front lip and sides.338whp/272lbs tq at 18psi  FOR SALE! email: [email protected] http://members.cardomain.com/1quick2 
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#2
11-15-2004, 05:21 PM
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Re: Just Dyno'd-need help Jeckyl
Excellent HP! ... the torque seems low though.
How old is your ignition? (cap/rotor/wires/plugs) Are you using Toyota parts there? What plugs and what gap? You referenced 20 psi ... I assume you did not dyno at that level? 1.12 bar is just under 16 psi. Are you sure you are measuring bar?
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Sponsorship: Amateur Motorsports <-- Get the book! - books are now available for shipment
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#3
11-16-2004, 04:12 AM
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Re: Just Dyno'd-need help Jeckyl
Sorry about the typo Jekyl...it was 1.21 bar on the greddy profect, autometer read around 19psi. brand new plugs NGK 7 range, all other components are toyota around maybe year and a half old, but not many miles as the car was down around 10 months. gap i believe is either .28 or .30. Also, no i didnt dyno at 20psi just wanted to play with boost levels to see if it went away. It seems NOT AS bad on pump gas, but its still there. I hope that helps at all
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93 MR2 Turbo-.20 over JE pistons,T3/04E 57 trim w/.63 AR,Intake,Greddy profect b spec 2 BC, APEX'I GT spec exhaust,Apex-i S-AFC, Turbo timer,550cc injectors,HKS trunk mount IC, B&M s/s,SPEC stg3 6puck clutch, TRD springs. Autometer gauges, PCP reverse indiglo gauges. P/P head,Intake, 17" SSR repl, Kaminari front lip and sides.338whp/272lbs tq at 18psi FOR SALE! email: [email protected] http://members.cardomain.com/1quick2
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#4
11-16-2004, 07:39 AM
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Re: Just Dyno'd-need help Jeckyl
If you are going to run 20 psi, I woud suggest a tighter gap .025- .026 range.
Do NOT regap the lplugs you currently have. You just referenced pump gas ... what fuel were you tuning on?
__________________
Sponsorship: Amateur Motorsports <-- Get the book! - books are now available for shipment
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#5
11-16-2004, 06:27 PM
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Re: Just Dyno'd-need help Jeckyl
108 unleaded....i just boosted today and it pulled very clean and hard. I did it again shortly after and the studder was back, i guess it is now an intermitant problem.
What it the reason for not re-gapping?
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93 MR2 Turbo-.20 over JE pistons,T3/04E 57 trim w/.63 AR,Intake,Greddy profect b spec 2 BC, APEX'I GT spec exhaust,Apex-i S-AFC, Turbo timer,550cc injectors,HKS trunk mount IC, B&M s/s,SPEC stg3 6puck clutch, TRD springs. Autometer gauges, PCP reverse indiglo gauges. P/P head,Intake, 17" SSR repl, Kaminari front lip and sides.338whp/272lbs tq at 18psi FOR SALE! email: [email protected] http://members.cardomain.com/1quick2
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#6
11-16-2004, 08:33 PM
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Re: Just Dyno'd-need help Jeckyl
Once you have a plug gapped and it is run ... trying to regap it would make it very brittle. That littel electrode breaking off could destroy a piston or a valve .. or both.
Way to much risk for a plug that costs $1.75.
__________________
Sponsorship: Amateur Motorsports <-- Get the book! - books are now available for shipment
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