digitaloutsider Posted October 26, 2005 Report Posted October 26, 2005 I'm working on boosting my current 3.4, but I'm running into a few roadblocks, namely being speed density. It's just not worth it to even fuck with trying to tune it. The 94-97's had a MAF sensor instead of speed density programming. I have a few possible solutions: OBD-II: This is the most involved, but would probably reap the most rewards. However, I don't really have the kind of expertise that it would take to install an entire OBD-II system into the Cutlass. Plus there are issues with the gauges, trip computer, etc. OBD-1.5: Not a very involved conversion, but it has the downside of being well.. OBD-1.5. No easy code scanning. Bullshit like that. Regal L27 MAF/ECM: Me and mfewtrail were thinking about this. If it's possible, it's by far the easiest, cheapest route to go while still being functional. However, there are issues here. The biggest problems are difference with sensors (cam, crank) and the fact that the L27 has a completely different DIS from the 60 degree V6. Any input would be welcome here. It's pretty much all brainstorming now. So any other ideas you guys can come up with would be awesome. Quote
Gearhead43 Posted October 26, 2005 Report Posted October 26, 2005 Why not use a MAP? The McLaren 3.1 turbo used the MAP to calulate boost??? 2 BAR map = 16 psi. 1 BAR = ABOUT 8 pis OF BOOST.. oR WIRE UP A 3 BAR map... = 24 psi BOOST.. SHOULD BE PLENTY!!! Quote
digitaloutsider Posted October 26, 2005 Author Report Posted October 26, 2005 Yes, but it's not resolving the problem with speed density programming. That's great if I can read how much boost i'm pushing, but it doesn't help me at all that I'd still have to hard-code air/fuel tables. That's what i'm trying to get rid of by moving to MAF. Quote
Gearhead43 Posted October 26, 2005 Report Posted October 26, 2005 What about using the TGP's ECM as a starting point...? Maybe have someone combine the 3.1 Turbo and the 3.4 tables has a start point? Quote
digitaloutsider Posted October 26, 2005 Author Report Posted October 26, 2005 Once again, you're not getting what I'm trying to say. I don't WANT tables. I want my A/F to be dynamic depending on how much air is coming into the engine.. which is what a MAF sensor would accomplish, hence using the Regal ECM/MAF as a starting point. You see now? Quote
Gearhead43 Posted October 26, 2005 Report Posted October 26, 2005 ummok yes a regal MAF coupled with a AF1.0? Quote
Vegeta Posted October 26, 2005 Report Posted October 26, 2005 MAF uses tables still, though they stack up to one long ass list. 94-95 DOHC MAF is tunable and scanable. efi-live is 180 bucks though for scanning. You would need to wire up the extra crank and cam position sensors, and run the SFI fuel injector wiring. Talk to oldskoolgp on 60v6, as he plans to swap to OBD2 and its the same drilling on the block for the sensors that you will need to make yours SFI. 1bar is 14 psi btw, not 8. Quote
digitaloutsider Posted October 26, 2005 Author Report Posted October 26, 2005 Well, I've decided. Sean has a '96 LQ1 with 40k miles. I'll be picking that up. I'll run OBD-1.5. I'll most likely be using a T04B turbocharger with custom manifolds. All the tuning will be done in house . So, there's my blueprint for now. Quote
Canada Posted October 27, 2005 Report Posted October 27, 2005 I'm planning on using that turbno as well......in 62-1 form. Here is a map of the 62-1...1.68 PR, so 10 psi. I don't have a clue on how I'm going to actually tune the car yet. Quote
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