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10-07-2018, 01:45 PM | #1 |
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Experience of using V4 tunes from OFT in Britain
Been running V4 tunes on my GT86, because headers are so expensive in Britain, I took the route of replacing the cat in the OEM header. Running what would be E10 fuel in the USA, Mishimoto sound generator delete on induction pipe, panel air filter.
Performance changes -
I'd say this achieved my goal of 80% of the gains of new EL header and bespoke ECUtek tune at much less than 80% of the cost, plus the car still looks and sounds stock and no CELs |
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10-07-2018, 02:19 PM | #2 |
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Nice job. Did you change to stage 2 tune?
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RCE T2's, SPC LCAs -4/2.6 camber JDL 4-2-1 EL, FP and OP, Tuned by Zach@CSG on e85 RR Wilwood Front/Rear Sport BBK, Motul 600 Fluid ARC-8 17x9 SX2 GTs 245s/Koing 17x8 v730's 225's |
10-08-2018, 02:30 AM | #3 |
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Stage 2+ as catless header
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10-08-2018, 09:30 PM | #4 |
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What fuel octane are you running with?
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10-09-2018, 02:01 PM | #5 |
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99 RON with 5% to 10% Ethanol,
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10-09-2018, 02:08 PM | #6 |
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nice. was gonna do this on 17+ headers. did u do the welding with the headers on the car or off the car? my only concern doing it off the car is that fitment would not be 100%
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10-10-2018, 10:20 AM | #7 |
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Without rescaling your MAF table?
I used V4.03 OTS ROM for my MY18 BRZ and I could say although they improve the car they don't match our EUDM models, at least with our poor quality fuel. |
10-10-2018, 10:27 AM | #8 |
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The cat replacement was done off the car, actually I bought it already done so I have the unmodded header to swap back if I sell the car. I was told it took some work to shape the pipe to fit after the cat was removed, keeping the flange to the overpipe in correct position.
>Without rescaling your MAF table?< I didn't. The AFR stays about 14 and I've not seen any issues with long term fuel trims. I only use the highest RON fuel available in the UK. Last edited by amcluesent; 10-10-2018 at 10:41 AM. |
10-10-2018, 11:30 AM | #9 | |
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Quote:
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10-10-2018, 12:23 PM | #10 |
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knock indicator not shown any cause for worry on the OFT real-time display.
I'll post some data sets on that thread |
10-10-2018, 02:09 PM | #11 |
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you can t have 14 afr on high load.. if you really have it, you should worry a lot
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10-10-2018, 03:33 PM | #12 | |
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Quote:
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2013 Series 10 FRS #553
RCE T2's, SPC LCAs -4/2.6 camber JDL 4-2-1 EL, FP and OP, Tuned by Zach@CSG on e85 RR Wilwood Front/Rear Sport BBK, Motul 600 Fluid ARC-8 17x9 SX2 GTs 245s/Koing 17x8 v730's 225's |
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10-10-2018, 07:01 PM | #13 |
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Wait is this 14:1 at steady state cruise or WOT.
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10-14-2018, 05:14 PM | #14 |
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It's amazing how often people jump to conclusions. On any stock/OFT tune I think it would require something completely off to run 14:1 at WOT.
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