tristanlee85 Posted March 25, 2009 Report Share Posted March 25, 2009 I spent about 2 hours or so with Brian on Sunday trying to get this car tuned in and hit my goal. Unfortunately, I didn't hit my goal, but I have a couple of changes before the dyno day so I'll get right on that. On Saturday I burned new firmware to my ECU which had a new algorithm for my boost controller, but of course it threw my settings all off so boost was either 18.5psi with the springs or hitting my 29psi limit when it would over-boost. Needless to say I could only do pulls with spring pressure. Short list of mods: 1000cc injectors 4-bar MAP sensor Open downpipe 11.8 - 12.2 AFR 23* advance at 6k E85 MegaSquirt MS2Extra w/ Ford EDIS Probably other things I was shooting for 400whp at 23 - 25psi, but I guess we will have to try later. http://forums.plastikhosting.net/dyno/ce2e3d48b8a0027da00befa04fd11a5c_1237901960.jpg Quote Link to comment Share on other sites More sharing options...
Main3s Posted March 25, 2009 Report Share Posted March 25, 2009 Not too shabby. Is the boost controller problem why the A/F line isn't as smooth. Either way decent numbers, congrats! Quote Link to comment Share on other sites More sharing options...
tristanlee85 Posted March 25, 2009 Author Report Share Posted March 25, 2009 no that was just my changes inn the tune. i was trying to get it to 12.2 across the board and toward the end i was getting frustrated with the boost controller so i ended my day. Quote Link to comment Share on other sites More sharing options...
sol740 Posted March 25, 2009 Report Share Posted March 25, 2009 Nice numbers, good luck getting to 400, thats my goal too, on the stock turbo. Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted March 25, 2009 Report Share Posted March 25, 2009 Don't be afriad to venture to lower lambda values, I've found E85 usually makes best power sub .80 lambda (usually ~ .72-.78). Also, the addition of more fuel mass adds to turbine energy as exhaust mass flow = air mass + fuel mass. Glad to see the build is coming along, good luck! Quote Link to comment Share on other sites More sharing options...
thorne Posted March 25, 2009 Report Share Posted March 25, 2009 blink blink e85 = big timing up top Quote Link to comment Share on other sites More sharing options...
dragknee66 Posted March 25, 2009 Report Share Posted March 25, 2009 1000cc injectors holy moses batman Quote Link to comment Share on other sites More sharing options...
Nate1647545505 Posted March 25, 2009 Report Share Posted March 25, 2009 1000cc injectors holy moses batman E85 has very high BSFC (fuel consumed per hp), usually noted in the .70 lb/(hp * hr)+ range. I wouldn't be suprised if the injectors are near their max at 400 wheel... Quote Link to comment Share on other sites More sharing options...
schmuckingham Posted March 25, 2009 Report Share Posted March 25, 2009 thing sounded good at least... minus the coolant leak Quote Link to comment Share on other sites More sharing options...
Mr. Jones Posted March 25, 2009 Report Share Posted March 25, 2009 thing sounded good at least... minus the coolant leak Exactly what DID the coolant leak sound like ? Quote Link to comment Share on other sites More sharing options...
tristanlee85 Posted March 25, 2009 Author Report Share Posted March 25, 2009 Don't be afriad to venture to lower lambda values, I've found E85 usually makes best power sub .80 lambda (usually ~ .72-.78). Also, the addition of more fuel mass adds to turbine energy as exhaust mass flow = air mass + fuel mass. Glad to see the build is coming along, good luck! Good to know. I also heard that too from someone else yesterday so I'll try to richen it up a bit. It's unsteady because It was richer (near 11.8) when I first started and I was working my way on leaning it out to try and gain some more power. Quote Link to comment Share on other sites More sharing options...
tristanlee85 Posted March 25, 2009 Author Report Share Posted March 25, 2009 1000cc injectors holy moses batman 1000cc is barely going to be enough for 400 at the wheels. An hour before the dyno I swapped out my 880cc's and put in the 4-bar sensor too. Now, while I still have room to tune, the 1000cc's were already at 81% duty cycle @ 12.2:1 @ 6004 rpms (according to my datalog). This car (for now) is a dyno queen so maxing out those injectors often is not going to be the case. Quote Link to comment Share on other sites More sharing options...
tristanlee85 Posted March 25, 2009 Author Report Share Posted March 25, 2009 thing sounded good at least... minus the coolant leak Yeh I went to work last night and forgot to fill it up and my light came on. I'm pretty sure the seal of the 150k mile cap is bad. 1 Quote Link to comment Share on other sites More sharing options...
schmuckingham Posted March 25, 2009 Report Share Posted March 25, 2009 Exactly what DID the coolant leak sound like ? like cum dripping from a loose anus, you know that sound........ doesnt everyone? But in all seriousness this is one mean little sleeper of a car. +rep for you sir Quote Link to comment Share on other sites More sharing options...
dragknee66 Posted March 25, 2009 Report Share Posted March 25, 2009 How many Liters is that Saturn 4 anyway? Quote Link to comment Share on other sites More sharing options...
tristanlee85 Posted March 25, 2009 Author Report Share Posted March 25, 2009 1.9, .020" overbore. Quote Link to comment Share on other sites More sharing options...
NOPR Posted March 25, 2009 Report Share Posted March 25, 2009 1.9, .020" overbore. so its a SOHC? Quote Link to comment Share on other sites More sharing options...
Mr. Jones Posted March 25, 2009 Report Share Posted March 25, 2009 like cum dripping from a loose anus, you know that sound........ doesnt everyone? Full gape or half ? Quote Link to comment Share on other sites More sharing options...
tristanlee85 Posted March 25, 2009 Author Report Share Posted March 25, 2009 so its a SOHC? SOHC and DOHC were both 1.9L. SOHC had lower compression pistons (~9.3:1) and 8 valves. DOHC has higher compression (~9.5:1) and 16 valves. This is a stock block with the head decked .030", cylindered bored .020" over, and ~9.3:1 JE pistons and Crower rods. Quote Link to comment Share on other sites More sharing options...
Aesthetic_Influx Posted March 25, 2009 Report Share Posted March 25, 2009 1000cc is barely going to be enough for 400 at the wheels. An hour before the dyno I swapped out my 880cc's and put in the 4-bar sensor too. Now, while I still have room to tune, the 1000cc's were already at 81% duty cycle @ 12.2:1 @ 6004 rpms (according to my datalog). This car (for now) is a dyno queen so maxing out those injectors often is not going to be the case. I'm really confused as to how this is possible. I'm running stock 370cc's in the Z and don't see 100% duty cycle until I'm right in the 370-400 rwhp mark. (Granted I too am going to bigger injectors once the money is available) Good luck on the tuning - get that A/F under control too. Quote Link to comment Share on other sites More sharing options...
Mr. Jones Posted March 25, 2009 Report Share Posted March 25, 2009 I'm really confused as to how this is possible. I'm running stock 370cc's in the Z and don't see 100% duty cycle until I'm right in the 370-400 rwhp mark. (Granted I too am going to bigger injectors once the money is available) Good luck on the tuning - get that A/F under control too. 1. You are also not tuning for E85 2. He has fewer injectors Quote Link to comment Share on other sites More sharing options...
Aesthetic_Influx Posted March 25, 2009 Report Share Posted March 25, 2009 1. You are also not tuning for E85 2. He has fewer injectors AH. Quote Link to comment Share on other sites More sharing options...
Buckeye1647545503 Posted March 26, 2009 Report Share Posted March 26, 2009 Not to bad for Rubbermaid! Quote Link to comment Share on other sites More sharing options...
coltboostin Posted March 26, 2009 Report Share Posted March 26, 2009 You "Shouldn't" run out of fuel at 400whp. My 1600's are good to 700whp on "E". Quote Link to comment Share on other sites More sharing options...
tristanlee85 Posted March 26, 2009 Author Report Share Posted March 26, 2009 And that matches perfectly with what I said. 450bhp with 4 injectors is around 66lb/hr with 80% duty cycle. 66lb/hr * 1.46 (E85 consumption increase) = 96lb/hr, or 1000 for 450bhp. Assuming 15% drivetrain loss, that's close to 400whp. As for you, 700whp = ~102lb/hr. Multiple that by 1.46 and you get ~150lb/hr, or 1575cc for E85. So yes, you need 1600's for 700 and I need 1000's for 400. Quote Link to comment Share on other sites More sharing options...
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