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Darryl, what would it take to RWD SR convert my QG18 bluebird? Ive got a mate with a angle grinder and stick welder, surely it cant be too hard
Just read through your other posts.Before engine reaches running temp, the ECU will run cold timing and fuel maps. This is more fuel and less advance. I'm assuming your running a manual box and manual ecu? Ratios between gears look like they change points drop it back to 4k rpm from redline. You also look like you've removed intake secondary controls and changed cams. I don't know how the di does its thing, especially with the secondaries, but I speculate at 4k rpm the ecu is switching to closed loop running too lean? and timing vs cam overlap or lift is wrong.Try the other cams or put the secondary valves back in.