marauder
Go Kart Newbie
- Location
- Northern Va
Marauder; I have looked into tuning, I plan on working with EQT to start with a 91 octane tune. 91 is the best we get (oxygenated, so max E10) in the Denver area. I will eventually work on an E85 blend tune down the road; would really like something with a flex fuel sensor and tuning that can compensate if possible...what do you think?
I'm thinking of ditching the OEM 240mm 23 spline disc and going with the Sachs 240mm performance disc with the TTRS pressure plate. If TTRS PP plus regular 240mm clutch disc is good for 400-430lb/ft, I would guess the combination of TTRS PP and Sachs performance sprung disc should be an incremental bump in grip.
EQT is a good company, I haven't ran their tunes, but from what I've seen people enjoy their tunes. They are our biggest competitor in the cobb VW market, lol.
So your biggest hurdles is going to be your altitude and gas. The turbo is vary capable of over 400whp so it has the flow to account for your altitude. With 91 octane you'll be octane limited prior to reaching your turbo's flow limit. You'll really want to go with an Ethanol blend. As you're doing MPI and LPFP there's really no reason not to, if you don't plan to do ethanol then you may want to look into skipping those are you won't outflow your LPFP on 91 octane alone. You don't need an ethanol sensor though they are nice. Cobb does not support Flex Fuel at this time, so what you'll have to do is get 2 different tunes. One for 91 and one for your ethanol blend. You'll most likely be doing E30-E50, there isn't that much to be gained going past E50 on this size turbo. Then you'll switch map files when you change fuels(takes 2-5 min). You'll have to mix the fuel yourself. There are apps/charts online you can use to help you. It works out roughly 3-4 gallons of E85 and the rest 91 for around E30. It is good practice if you don't have a sensor to get an ethanol tester on amazon($12) to use it at the station every once in a while to make sure the stations ethanol is actually E85. In Colorado the stations will change the percentage based upon season. At some points going down to E50 due to the cold. If you have a tester you can account for this by simply pumping more in.