observations/advice

gaveup

I can't help but think that modding my car has actually made it slower. Anyone else ever have this feeling before a tune? I know I have read a tune is supposed "wake" the car up, but I don't ever see stellar results (10whp is what I have been seeing as average right?)

As the car sits now it has gen 3 intakes, test pipes and invidia gemini exhaust. On a closed circuit (because I really don't condone street racing) I had a couple races with some friends and one guy with a stock 2008 automatic 350Z and myself ran. We were pretty much dead even until we let off near the end of forth. Same went with some runs with a stage 2 newer style GTI.

Now, I noticed when we were done running it, my oil temps were slighty above 260. The general opinion I get from people on this forum is that it doesn't matter (Although, I would love to see someone log some pulls in their cars at different oil temperatures to prove this theory...but it appears no one has.)

So I ask a few questions:
1. To those of you that got tuned: Was the car considerably slower before getting said tune?
2. Has anyone actually logged their car at different oil temps to verify that ecu does not pull timing or throttle depending on the oil temp/ engine temp?

Now yes, I have been on these forums for a hot minute and I know many will say search this and that. I have looked all over this forum. I promise. If I missed something it would have been by accident, not lack of motivation to find.

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2010 Magnetic Black Metallic 370Z 6M
stillen gen 3 CAI - topspeed test pipes - invidia gemini CBE - UpRev tune
301whp (HP Logic Mustang Dyno)

ChrisSlicks

The Gen 3's can throw the tune off big time. Combined with test pipes I wouldn't be surprised if you are making less power than stock.

If you get tuned you will get back all the lost power and then some. The actual gains during a tune are mostly in regards to how far off your tune is now.

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Hotchkis ARB | Stillen CAI | Art Pipes | Berk CBE | Stillen AP Racing Brakes | AE Performance Oil Cooler | BC Racing ER Coilovers | Doran Control Arms

Alchemy

Once I tuned the car definatly "woke up". If you have those intake and exhaust mods you most certainly should tune. It makes a big difference. I gained plenty of torque and power thru the whole rev range.

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Ryan
314WHP | 260LB-FT | STILLEN | KONI | SWIFT | STOPTECH | Z1 | PROJECT MU | CNT | UPREV | FORGESTAR | BRIDGESTONE | PWJDM | ENEOS | MOTUL

roy'sz

hot oil temps will cause a "bog" also. 260 is pretty high up there. I read in a thread on this site a while back that after 230 or so the timing does change. Theory or what I don't know but just a fyi on a different thread here.

esfourteen

260 oil temps the ecu is retarding timing, the shop I use has seen timing pulled as low as 240. As far as your mods go, when I got a dyno tune I had the same mods as you, I saw +15hp/7tq peak, along with the more noticeable +10 hp/tq in the bottom end. It is well worth the money.

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Build Thread | GTM TT Install Thread | Engine Build Thread

m4a1mustang

Don't pay too much attention to peak gains with the tune; you'll pick up everywhere especially if the ECU has things way off right now. I'd get that done and then reevaluate.

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- Steve

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