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Isn't the reprogramming of getting the ecu to work with the E30 and tunning really the expensive part of an S54 swap? IIRC it was in the thousands. You'd have to replace the gas pedal and throttle signal electronics too. The S54 is an engineering marvel, probably the best engine BMW has produced IMO, but throttle by wire sucks. Normal mode has the slightest pause which is really annoying. Sport mode is better, but can be jerky. The aftermarket tunners are much better. Just sounds like a nightmare getting all the electricals to play nice.
Well the wrecked e46m3 isn't coming to me. His dad is taking the driveline for his track car and parting out the rest for him. They are in Minnesota and he said they might ship parts for the right price but are planning on craigslisting them since its less of a hassle. He'll make more $$ this way and he doesn't have to deal with parting it himself which makes him happy.
I told him to have his dad post up here on r3v when he has parts ready to sell so I'm not a middle-man!
Isn't the reprogramming of getting the ecu to work with the E30 and tunning really the expensive part of an S54 swap? IIRC it was in the thousands. You'd have to replace the gas pedal and throttle signal electronics too. The S54 is an engineering marvel, probably the best engine BMW has produced IMO, but throttle by wire sucks. Normal mode has the slightest pause which is really annoying. Sport mode is better, but can be jerky. The aftermarket tunners are much better. Just sounds like a nightmare getting all the electricals to play nice.
There are three options.
Hardest: take parts e46, convert E30 to use its wiring, cluster, DSC, TC, otherthreeletteralphabetsoupnames, fuel pump, wheel speed sensors, and more, then it's plug and play. You're effectively building an E46 with an E30 body. Most time consuming and rarely done right, but it's been done. Easier in an E36, but not a whole lot.
Easiest: send S54 ecu to Bimmerworld with a check for $3k-ish and then you can run the ECU and the S54 in whatever car you want. Their setup disables the DSC, TC, etc sensors that the ecu normally looks for, which means you don't need to convert your car into a 20 year old E46.
Easiest from plug and play standpoint, but hard to get running right: Alex Lipowich's standalone plug and play kit, also $3k-ish. Easiest because it's wired to be PnP for E30/E36, Hard because it's standalone and requires tuning, and since it's an S54, double infinite vanos is a bitch to tune. It comes with base maps though, but if you want to modify the tune, it'll be a bitch unless you know what you're doing. This option doesn't have the stock ECU's ability to go to a dealership and pull codes, so it's not as well suited to a DD as the Bimmerworld option, but makes more power and allows more control.
2017 Chevrolet SS, 6MT
95 M3/2/5 (S54 and Mk60 DSC, CARB legal, Build Thread)
98 M3/4/5 (stock)
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