t04e hybrid FAIL!
08-25-11, 10:17 PM
#51
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Setup is s4 Rtek 1.8, (4)720cc injectors, walbro 255, custom front mount, neo, 3" turbo back, s5 turbo, s5 jdm engine core, and trailing plugs in all 4 positions. engine is stock port and i also premix 200:1 (still have s4 OMP). see avatar for pic of car....
changing the filter helped a little, but the AFPR is acting funny and it was a cheap old ebay one so i've got a spare to replace it with tonight. along with the system voltage drop in the previous post so i'm swapping to the s5 alt.
I'm also getting some low rpm load ignition breakup, i'm thinking because of running the trailing plugs in the primary position to help prevent detonation. but that sounds like another ball of wax.
WB was calibrated that day.
i think i should be able to drowned the damn thing in fuel all the way to 8k if i wanted but idk??? if the regulator and getting the system voltage up doesnt solve the problem i'm going to take the secondarys out and have them rebuilt and flow mached.
changing the filter helped a little, but the AFPR is acting funny and it was a cheap old ebay one so i've got a spare to replace it with tonight. along with the system voltage drop in the previous post so i'm swapping to the s5 alt.
I'm also getting some low rpm load ignition breakup, i'm thinking because of running the trailing plugs in the primary position to help prevent detonation. but that sounds like another ball of wax.
WB was calibrated that day.
i think i should be able to drowned the damn thing in fuel all the way to 8k if i wanted but idk??? if the regulator and getting the system voltage up doesnt solve the problem i'm going to take the secondarys out and have them rebuilt and flow mached.
08-26-11, 12:58 AM
#53
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yea, or where did you get them? I have some modified 720cc that work really well in the secondary spot, but as far as normal driving with them in the primary position they are all over the place with my afrs no matter how I tune it. From 11.1 - 17....
08-27-11, 01:17 PM
#55
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I think V1 and V2 refer to the 6 and 8 blade variants of the V-trim compressor. I listed them both a few posts up, and that info came from a number of sources. The U-trim term is something I've heard from a former Garrett dealer for the 54mm inducer, but 1.5mm smaller is a totally different compressor map than the V1/V2 55.3/55.4mm wheels. I have both an 8-bladed U-trim and an 8-bladed V-trim compressor with measurements matching the numbers above.
Never seen a 6-blade V trim wheel only 8 bladed comp. wheels, so I take it is a varient like that of the 6 blade "H-trim"?
08-29-11, 02:29 PM
#56
Don't hate my V8
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went for another tuning pass today, engine still leans out @ ~36-3800rpm i'm thinking the secondary injectors are not flowing properly. idle and cruzing afr's seem normal (13.9-14.1) so im thinking my primary injectors are legit, just one or both of the secondarys are giving me trouble.
08-29-11, 03:08 PM
#57
09-11-17, 06:29 PM
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I know this is an old post but I run a to4e hybrid ,s4 rear cut back for the bigger wheel ,I have a 9mm spacer made up ,using two manifold gaskets was just enough room too bolt the s4 exhaust manifold on ,I had to grind the turbo housing abit but it fits just ,the oil return line had to be modified to fit around the bigger housing the oil in line just bolted up without mods ,I didn't modify the exhaust dump pipe though it does sit closer to the body than before .my FC now makes 234rwkws (313HP)@7500rpm on 11.8psi .
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