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I didn't like the idea of having the methanol tank and pump in the rear of the vehicle so I planned and measured everything out to make sure it would fit up front. bought 2 coolant overflow reservoirs and mounted them inside the passenger's side fender tee'd and vented them together, holds approximately 2 litre's (1/2 gallon) modified the top of the fender to accommodate filling. Mounted the pump on the firewall above the front sway bar on what would be the back side of the passengers side footwell. Ran the lines through the inner fender liner directly to the pump, mounted the flow sensor and relay on the firewall above the pump, mounted the injector in the usual spot on the turbo pipe. Mounted the module inside the drivers side under dash trim panel, had to cut an opening in the back of the panel but it fits perfect. Routed the wiring through the drivers side wiring harness grommet and ran all wiring under the wiper cowling. Took some time but made for a nice clean install! tanks in fender modified fender pump mount location top view, pump mount and line routing injector location with insulated line
Last edited by E34M5; Dec 21, 2018 at 07:17 PM.
Reason: additional pictures
While I can totally appreciate the skill, time and eye for detail that went into the install, I bet the first time you drop that cap in the fender you lose your *****. I would.
I have the Howerton with the tank in the boot, been there for about 5 years with NO issues.
it will just fall down into the bottom of the fender liner, easy enough to retrieve. That being said I will probably put a retainer chain on it like my boat fuel tank filler cap that way it can't go far and it
will be easier to retrieve. Finally got the underdash picture to upload
I got them from speedway motors, the rear tank was 3"x10" and the second tank I think was 2"X15". If your going to do an install let me know, I will measure them or find my original receipt, just search radiator overflow tanks on their site. You just have to tee them together, the lower drains and the vents, then drill a small hole in the front tank cap so it can breath. Otherwise it will vapor lock and the pump will not be able to work. I still have to epoxy some breather material on the top of the filler tank cap to prevent any excess moisture or dirt from getting into the system.
