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My tuner know what he's talking about????

Old 12-15-2006, 12:16 AM
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Default My tuner know what he's talking about????

ok, so I am in the process of getting boosted (ehh been in that "process" for too long now) Anyways hoping to get it all finished this winter. Well theres one guy that does pretty cheap street tunes local to me so I just kinda assumed the whole time I would go with this guy. Well anyways I have my doubts on how he plans to tune my car. I have a d16y8 (crazy p2p maps) and will be going with a chipped p28. When I talked to him, he made it sound like the timing was not an issue and he would just use stock p28 igntion maps and then retard 1* per lb boost. From my understanding, the timing on the y8 is a bitch, and not as simple as just using the p28 map and simply retarded 1 degree per pound boost. He said that he would only alter the ignition timing if it was knocking. Am I making the y8's timing issues out to be bigger and badder than they are, or is my tuner not such an "expert" afterall? this is a guy that has worked at a shop, and claims to have tuned many y8's before, as well as "many" built motors too. It is $150 for a street tuning sessiong, and he has a wideband and datalogging equipment and an emulator, says he has over 5 years tuning, but i think he's 19 "the part throttle air fuel ratio is usually between 14-16afr For full throttle tune, I aim for 11.5-12 air fuel ratio depending on boost." His target afr

what do you guys think, how many of you guys have tuned your y8's starting with a p28 basemap? Should I trust this guy?

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Old 12-15-2006, 01:25 AM
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Default Re: My tuner know what he's talking about????

well since ive never tuned before, i dont know a whole much, but what i know that the more advanced the timing to more hp you get, but the great risk you run for pre det, so to cure this you run a high octane fuel.

but what do i know, i drive a focus.
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Old 12-15-2006, 01:56 AM
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Default Re: My tuner know what he's talking about????

Originally Posted by kamilk69
but what do i know, i drive a focus.
good point.... Jk, but yes that is true to a point, and I am not worried about the tuners 1* retard per lb boost, thats fairly standard, but that he is just starting off the z6 (p2 map not wanting to change everything from 16-12* and fully advance the dizzy (or whatever setup that is suppossedly correct for the y8 timing)


He wants to keep my dizzy stock and not touch it.

Guys with y8 tuning experience help me out. What should we start the timing at, what is the "new thing to do" I know that there have been many debates on y8 timing, and I am just asking for someone else to give me an idea of where to start.

thanks
RKS
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Old 12-15-2006, 08:32 AM
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Default Re: My tuner know what he's talking about????

Y8's def require a whole different timing map than the D16Z

If you search for a post by J Davis in this section (Engine Management) a lot of the reasons why are explained.

Its probably not that he doesnt know, but he might not have as much experience as he states when it comes to Y8 motors.
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Old 12-15-2006, 10:23 AM
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Default Re: My tuner know what he's talking about????


Your tuner doesn't sound like he knows very much about Y8s.

I said it once, a stock Y8 has very good quench. The flame propagates very quickly through the combustion chamber and thus does not need highly advanced spark. Now a Y8 with Vitaras would need more timing as quench is now gone.

Timing can be adjusted on the dyno. Many Y8's bearings get smashed to ---- because poeple use Z6 timing maps and all the force lands right on the bearings instead of after TDC.



Go check out JD thread. He spent some time with a Y8 on the dyno and came up with some decent timing maps. I'd link you there, but I'm tired as ---- and am now going to bed.

Good Luck.

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Old 12-15-2006, 10:31 AM
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Default Re: My tuner know what he's talking about????

Originally Posted by xenocron
If you search for a post by J Davis in this section (Engine Management) a lot of the reasons why are explained.
happen to have a link? the Search doesnt work for me...
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Old 12-16-2006, 08:13 PM
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Default Re: My tuner know what he's talking about????

yes.. im interested in to read that link by JD... if anyone has it..please post here..
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Old 12-17-2006, 06:21 AM
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Default Re: My tuner know what he's talking about????

i run more boost keep it 16btdc
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Old 12-17-2006, 06:04 PM
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Default Re: My tuner know what he's talking about????

if you eat more cheerios it will make more power
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Old 12-18-2006, 08:12 AM
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Default Re: My tuner know what he's talking about????

Sort the forum by Topic Starter...go forward until you find J. Davis name.

Read a lot of his other stuff too, he is a knowledgeable guy. I little strange, but smart
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