xxst1tch3sxx

iTrader: (1)

Hello! Recently I purchased an evo 8 under the idea that it needs a new engine. Cylinder 4 was measured at having around 130psi while the rest where 160psi. That being said this car is a highly modified car. Currently running e85, 1650 injectors, ams900x, speed density, and other supporting mods.

That being said; this car was brought up from Texas where e85 is much more available then where I live in MA. Short of tune is there anything else I should account for when "downgrading" to 93?

josh_evo9

iTrader: (1)

I would say possibly injectors, depending on how well those 1650's will run on pump. Also, if you plan to rebuild the engine to its current spec, I would figure out the compression ratio. Then see how you want to rebuild. Alot of pure e85 builds have higher c/r than pump gas.

Turndown

iTrader: (2)

Go with an FiTronic flex fuel kit from TSComp that way you can run it when you're around a gas station that has E85 without having to worry about switching MAPs. I live up in Melrose so I know the struggle. If you live anywhere near Boston, there are stations all around the Pike with E85

xxst1tch3sxx

iTrader: (1)

Thanks for the advice Josh! And Turndown I live in Worcester. My nearest option is like Charlton on the pike. I planned on doing flex fuel but right off the jump just wanted to ensure I didn't need to account for anything else other than tuning to revert back to 93. Plan is to make less power because I have 0 need for the same power this thing made when it was running correctly haha

Turndown

iTrader: (2)

You could easily have it tuned so that you aren't making crazy power too. With the cost of a tune, might as well get both in case you ever have the desire to throw some E85 in and not have to touch anyhting to make more power. Just a thought!

xxst1tch3sxx

iTrader: (1)

I absolutely appreciate the input! I supposed we shall see how it plays out once the engine is out this weekend and from there assessed for damage.

Turndown

iTrader: (2)

Sure! Keep us updated.

xxst1tch3sxx

iTrader: (1)

Ran my own compression test because the previous owner went off what he was told by the shop. Results are as follows 115,125,120,100. Warm engine and throttle at 100%. Maybe I will get lucky and it'll just be the headgasket lol. Hopefully get my hands on a compressor today and can perform a leakdown before the weekend.