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Motor and Drivetrain / Re: I want it i need it.....its time
« Last post by fabr on April 04, 2024, 06:14:30 PM »10" exhaust rules out using an O2 sensor for sure. Tuning is at best a guess though without one,IMO.
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Motor and Drivetrain / Re: I want it i need it.....its time« Last post by fabr on April 04, 2024, 06:14:30 PM »10" exhaust rules out using an O2 sensor for sure. Tuning is at best a guess though without one,IMO.
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Motor and Drivetrain / Re: I want it i need it.....its time« Last post by DeepBusch69 on April 04, 2024, 01:41:22 PM »I agree DS and I should have been more clear with my post. I just want a "base" tune to be half way close when I do go to a tuner. I don't have an O2 sensor and the exhaust is only 10" long. I just didn't want to start with a blank slate.
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The video room / Re: Techv3« Last post by dsrace on April 04, 2024, 09:20:16 AM »Desert Dynamics.Nice car for sure.I would like a tech3 mid engine V8 some day. They sure look like it, would like to see one in person. At some point, either I need to build a new frame or a different rail. Imo, cut one aprt twice is the limit 94
Motor and Drivetrain / Re: I want it i need it.....its time« Last post by dsrace on April 04, 2024, 09:01:01 AM »And Outfront won't update my ECU for 15lbs boost, said there are too many variables. He said I should get it on a dyno. I do understand that there are a lot of variables in play(intercooler, compression, cam, turbo, etc). So truth be told, I am not a John of outfront fan. Not saying he doesn't know what he's doing just don't agree with the way he does many things. Now, I know big Dave bought his turnkey engine from John, I thought Mike did too but I'm sure you can correct me on mikes engine. So based on friends personal experience and many many comments on forums and fb rail groups....... John isnt interested in really helping if you aren't spending good money. Now, my guess is that a lot of this is due to either he has paid to have tunes written for his engine builds or he himself has produced the tunes. Either way, whoever did, there are no provisions surrounding anything other then his build type. I always disagreed with the fact that Glenn old green rail didnt run an o2 sensor. Didnt see one on big daves or mikes either. Jerry's is a diff story altogether. I am no expert so I could be waaaaay off. If there is no o2 sensor then the ecu cannot run in closed loop. As a matter of fact, he removed all sensors and actuators that were not needed as an essential system, his idea of essential. I full understand why, he's selling 5 wire turnkey engines. I believe in all the additional sensors. even though I'm not shooting for max hp, Those additional sensors activate additional safety systems that I want. I looked at bigdaves laptop and tuning software once. I was surprised at the tune and explained why he was having some idle issues that an adjustment of the tps improved but didn't cure. He didn't have access to the key portions of the ecu in that tuning software. Not saying all of John's ecu's are set that way as I have no idea but John told him it was unlocked. As far as copying mikes tune, to be installed into your ecu....... yes and no. Yes you can do it if the ecu is indeed unlocked/open source. If your both running very similar cams or same cam and the same compression ratio then yes . If your running a lower comp ratio then mike then still yes as his timing map has had timing pulled for the higher comp ratio. Next piece of the puzzle is what else the ecu looks at but if yours is the 5 wire then all can be adjusted or should be able to adjust if 8ts a good system.. Big hurdle will be lack of an 02 sensor to tune yourself. I doubt there's an auto tune function in that ecu but even with out, as long as you can data log the run, you can live tune it. Again, you need a reliable 02 sensor for that to be possible. If your tail pipe is short then the 02 sensor reading will be worthless below a certain rpm because wind will blow up in the tail pipe and screw the reading. No big deal, tune the lower cells in your garage at home. So " a lot of variables " could have many meanings. Referring to mikes engine for this, if you 2 have the same size inj's, same stroke and bore, same comp ratio or his is slightly higher, as in half to a full point higher,,if your running the same crank/cam sensors, same throttle bodies and tps.......I see no reason not to and then live tune for the fine tune. You'll need some sort of 02 sensor reading for that. If your running leaded fuel that will shorten the 02 sensors life. 95
Motor and Drivetrain / Re: I want it i need it.....its time« Last post by dsrace on April 04, 2024, 08:13:47 AM »
In response to the left handed drill bits..... https://twitter.com/CheeseheadBrian/status/1773856779572568264?t=LGMirFsseexfYdMumecTpg&s=01 96
Motor and Drivetrain / Re: I want it i need it.....its time« Last post by fabr on April 03, 2024, 06:51:39 PM »
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Motor and Drivetrain / Re: I want it i need it.....its time« Last post by fabr on April 03, 2024, 06:45:34 PM »I was wanting to go up to 400 hp on the engine, but I did not have a closed deck or good crank. I did a compression test before I tore it down and all were within 2 lbs of each other, but when I did a leak down test, the intake valves on #3 were whistling pretty good. Had them rebuilt and they broke a bolt off in the head and didn't tell me (they might have broke it on the final assy and didn't know?). Got the bolt out but it was a hard bolt to find. Special stepped shoulder bolt to align the cam bearing cap. The new turbo won't fit, the intake manifold wouldn't fit, the water crossover hit a vent tube, etc. Just the joys of new build/ But I am powering thru it. I did get to use my new bridgeport to ream out the heads for larger 1/2" head studs.Gotta love those old Bridgeports. I use mine all the time.Could not live/build stuff without it. 98
The video room / Re: Techv3« Last post by fabr on April 03, 2024, 06:18:12 PM »Desert Dynamics.Nice car for sure.I would like a tech3 mid engine V8 some day. 99
The video room / Re: Devil's Dune St Anthony's Idaho - June 2023« Last post by fabr on April 03, 2024, 05:43:30 PM »100
Motor and Drivetrain / Re: I want it i need it.....its time« Last post by DeepBusch69 on April 03, 2024, 02:48:29 PM »And Outfront won't update my ECU for 15lbs boost, said there are too many variables. He said I should get it on a dyno. I do understand that there are a lot of variables in play(intercooler, compression, cam, turbo, etc).
Mike is set up for 15lbs with a tune from them, I wonder how hard it would be to copy his and update mine? DS? Enemy? it is an EMS brand ECU, Stinger model. He said that the tunes were not locked. |