Hi,

Many threads are focused on Dyno's and 1/4mile ET's but I assume most ppl like myself actually drive the car in normal traffic more than anything else.

It hit me today driving my 6MT Stage3 Cobb tuned tt in rush hour traffic through Stockholm (almost 800years old town, not planned for cars) how well it drives part throttle.

I was worried that new injectors and E85 would be a sacrifice in terms of drivability, but if anything Mitch@Cobb has made the car better than stock with regards to this. And it does 60-100mph in 2.8s

Love my car more than most days today!

 

Your car really is turning into something special. It is very fast for the little modifications that it has!

Enjoy it and please let me know if you need anything at all!

-Mitch

 

How does it run on the first cold start of the day, for the first 2 minutes or so? Any issues?

 

Cold start on E85 is rough, I let it idle for a few minutes before driving. Since I am getting two kids into the car its no issue

 

.1 or .2? Because you mentioned injectors, I assume .1 since I have not see DFI upgrades yet.

 

Do you have the pbox graph? Just curious to see where in the powerband you get the gains from e85.

 

LIES! They are both .1s

I've logged mine at cold start and when the wideband O2s are cold it's reading very lean, and the STFT are at 1.25. I think the opposite is happening - car is very rich and gurgly / popping. It has a hard time free revving.

It is like this for the first minute or two until the O2 sensors heat up, then it drives as smooth as silk. Probably need to tweak some startup parameters that are otherwise intended for gasoline/E10. It is not exactly trivial to adjust either, because it will only do this essentially on one cold start per day.

 

But its much improved, I'll log a cold cold start soon (winter is coming)...

 

Mine is a .1 btw!

 

I'll upload a before and after E85 graphs soon!

 

Oops.