Jfonz is tuning B8's now...

B8 S4
#461

Yeah the switch really has nothing to do with cost and honestly, I can get race fuel at more pumps than E85… Supposed to burn much cooler thus allowing lots more timing… Some say the intake/blower will be cold to the touch even after making passes… My car will not be full time E85 I have a B8 so I’ll have 4 programs, 93, 100, 104 and e85. The only hardware change is the hpfp which needs rebuilt to support the demand of 30%ish more fuel when running E85…

Also, like Saki said I like changes and tinkering/testing with the car… Keeps things interesting…

I won’t speculate but based on what I’m hearing it will make a nice bit more power over 104 tune…

#462

that’s cool that you can switch over. I didn’t realise the fueling would all be the same parts.

#463

Yeah, I wouldn’t do it if it was E85 only… Not sure what all needs changed but all the tunes needed revised before I can go WOT with the upgraded pump… So at the end of the day it’s an upgraded pump and tune(s)…

#464

yeah it is about 25-30% more required with E85. We will see will be interesting for sure. Not sure what the point would be running E85 and using more fuel for like 10-30hp more depending on the actual quality of the E85 fuel.

#465

[quote=“littleredwagen”]
I’m hoping to quantify in terms of tenths of a second at the strip not HP ;D

Oh and still no time from our friends at Solo Motorsports… Shocking…

#466

Will the blower still be coll due to the injection post blower. Usually the injection cools the blower units when it kits the intake track. The injection into the cylinders will keep things cooler to a point. Fuel from the pump cools very well too

#467

[quote=“primetime”]

help me understand AFR and E85 vs. race gas

if you have a fixed amount of air (maxed out 2 pulley TVSr1320)…now your fuel is the variable.

What’s the difference between race gas and E85?

i.e. is there any reason to run E85 over 93+meth or over 110 race fuel (and being tuned for each of course)

Is there really a performance delta with E85 vs. race fuel?

Feels like the limiting factor is the blower, so I don’t see the point of the E85 as my limited experience has been that the race fuels accompish much of what E85 does. Only real beit is the availability of E85 at gas stations in certain regions (not that I’ve ever seen it in Florida, California, Michigan). is it a money thing? i.e. you can accomplish the same performance for less money? If you’re upgrading fuel pumps, and paying for 20-30% more fuel for the same work, there goes a lot of cost savings

So…what’s the point?

#468

E85, the way I’ve always seen it…is a cheap alternative to making race gas power…nothing more. In places where it’s available everywhere, it makes some sense…but I’ve yet to see one person who hasn’t had headaches dealing with a full-on E85 converted car.

I don’t think E85 will be a world of a differnce for a guy like Prime who has never ran anything but race gas…for him to convert it just doesn’t make a ton of sense. Maybe he just wants to fill up at a pump instead of from a can all the time, because I’m 100% sure the cost savings has nothing to do with his choice.

#469

E85 should burn cooler and keep in-cylinder post combustion temperatures lower. Not sure if we can directly verify this, as the MAP/IAT sensor is in the manifold. But we’ve seen timing retard even with the race gas on the record passes. If we aren’t at MBT, then there is still performance room. Should be worse once stg 2+ boost levels are fully realized. So it’s possible in cylinder temps are helping to create knock onset.

#470

I think he fills up at a pump near his house (race gas). He also likes making changes and being first. Some people do. The TCU tune is a great example. A perfectly working transmission and a launch method that nobody has been able to beat…and primetime still switched to the APR TCU. Since doing so, his car hasn’t run right (nor has anyone’s car from the sounds of it) a year later. The two fastest APR B8 S4s are Primetime and Rynurz at 11.50 and 11.56…and they’re both either slipping shifts, hanging up, and short shifting, or some combo therein.

#471

Yeah the switch really has nothing to do with cost and honestly, I can get race fuel at more pumps than E85… Supposed to burn much cooler thus allowing lots more timing… Some say the intake/blower will be cold to the touch even after making passes… My car will not be full time E85 I have a B8 so I’ll have 4 programs, 93, 100, 104 and e85. The only hardware change is the hpfp which needs rebuilt to support the demand of 30%ish more fuel when running E85…

Also, like Saki said I like changes and tinkering/testing with the car… Keeps things interesting…

I won’t speculate but based on what I’m hearing it will make a nice bit more power over 104 tune…

#472

that’s cool that you can switch over. I didn’t realise the fueling would all be the same parts.

#473

Yeah, I wouldn’t do it if it was E85 only… Not sure what all needs changed but all the tunes needed revised before I can go WOT with the upgraded pump… So at the end of the day it’s an upgraded pump and tune(s)…

#474

Will the blower still be coll due to the injection post blower. Usually the injection cools the blower units when it kits the intake track. The injection into the cylinders will keep things cooler to a point. Fuel from the pump cools very well too

#475

So our friends at Solo still haven’t made any passes or shown any results other than their BS claims and paper sheets with pretty lines and colors… I love how they are extrapolating their dyno numbers to stage III numbers and taking shots at people… Based on his fuzzy math they should go 10’s no problem ::slight_smile: I’m not holding my breath, shit they won’t even go to the track…

http://www.audizine.com/forum/showthread.php/683162-STG-II-E85-Kit-group-buy

#476

If you can just get your TCU on line, and make a few great passes, you’ll be down to 11.3. If you run slicks, pull your interior and take your catback off, you’ll threaten 10s as well. So if their stage ii e85 kit works, I don’t see why they couldn’t.

Of course these guys have dodged the 1/4 mile in their b8 cars for 4 years already, so let’s not hold our breath lol

#477

a good friend of mine happens to work at solo. TBH the claims they are making are a bit odd. They typically go for the mile long races. For them to make an 1/4 mile claims i find strange. thats not what they are “known” for. They have always been into the longer runs.

#478

Yeah, in my experience over the years it’s because they don’t produce the results so hey avoid it and use their other “testing” as the marketing material to sell their product. Unfortunately, for them the 1/4 mile is the standard and used by all, sure the mile races and such are becoming more popular but they won’t displace drag racing or 0-60 metrics for that matter…

At the end of the day it doesn’t impact me from a buying perspective I just hate that they get away with spreading BS claims and use flawed logic. Vendorzine unfortunately has a lot of new users who are clueless and don’t know how to search and even worse don’t listen to the few knowledgeable people on the forum. Sad thing is I actually made an E85 pass and I had the tune for one weekend and grenaded the fuel pump on said pass… Yet again they nor their customers can’t find time to make a pass? They are going to these other events… lol Yeah OK… If your tune is so good go make some passes and post up, you’ll fucking sell more if the car does good if not well not so much…

Also, interesting they’ve had zero interest so far… EPL sold what 45 tunes in a few days and Saxon and a few others have already proved their tune is inferior so Solo was hoping to play up the whole E85 thing guess there is not as much interest but there sure is for “tuning” at home… lol

#479

and by ‘always’ …you mean the last 10 months since the company is that old

#480

So our friends at Solo still haven’t made any passes or shown any results other than their BS claims and paper sheets with pretty lines and colors… I love how they are extrapolating their dyno numbers to stage III numbers and taking shots at people… Based on his fuzzy math they should go 10’s no problem ::slight_smile: I’m not holding my breath, shit they won’t even go to the track…

http://www.audizine.com/forum/showthread.php/683162-STG-II-E85-Kit-group-buy