Tuning with nitrous
Re: Tuning with nitrous Yup. The wideband will work just fine.
Whether or not you have to fatten it up depends on how well your MAF picks up the juice. If your MAF is descreened or ported it will usually enrichen the car better whereas you won't even need to fatten it up a bit. The MAF will 'see' the nitrous coming in and add fuel accordingly.
If your MAF doesn't pick it up properly, then usually your a/f will end up being about 1 point leaner (ie from 13:1 to 14:1). In this scenario you need to fatten it up a bit to around 12:1 to 12.5:1.
You can add fuel using your MAFT, or you can make some adjustments to your system to get the MAF to 'see' the nitrous better. This involves removing your MAF screen or shifting your nozzles to more directly hit the MAF (never point them directly at the MAF otherwise you risk freezing your thermistors in the middle of a run).
Good Luck,
Kevin
Whether or not you have to fatten it up depends on how well your MAF picks up the juice. If your MAF is descreened or ported it will usually enrichen the car better whereas you won't even need to fatten it up a bit. The MAF will 'see' the nitrous coming in and add fuel accordingly.
If your MAF doesn't pick it up properly, then usually your a/f will end up being about 1 point leaner (ie from 13:1 to 14:1). In this scenario you need to fatten it up a bit to around 12:1 to 12.5:1.
You can add fuel using your MAFT, or you can make some adjustments to your system to get the MAF to 'see' the nitrous better. This involves removing your MAF screen or shifting your nozzles to more directly hit the MAF (never point them directly at the MAF otherwise you risk freezing your thermistors in the middle of a run).
Good Luck,
Kevin
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Joined: Nov 2001
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From: High Point North Carolina
Tuning with nitrous Does the A/F wideband give a proper reading when dynoing on the spray? I will be tuning my car to run on a 75 dry shot soon, its cam-only A4 with bolt-ons. Being a '98, I have a stout fuel system. With the dry 75 shot I should be around 410 at the wheels. I already have an ED Wright tune from a few years back thats still pretty good when I am N/A. I have a MAFT on the car now, I'm thinking I will just fatten it up a little with the MAFT when I spray, correct?
