DaX

iTrader: (1)

Ball out and get the G25-660! I know nothing about picking the right size turbo though, so this may be a terrible idea.

Txdragon

Ha! What I'm having difficulty with is between what I want and what I want to do. Those seem to clash a bit. I've decided to be a bit more accepting to outside input this time around and it seems the .85 A/R is gonna be blah for me. This kind of investment isn't something I'm taking lightly. Lol.
If it were a random, cheapo Ebay turbo, I'd just grab what looks good on paper and be done with it. I want to not only enjoy it, but see it on for a while! I've been working this part of the build into the "more than I need right now" zone so I can turn it up later when I have better fuel available. So the turbo is pretty important and seemingly the hardest decision here. I have a little more time to decide before I pull the trigger though. I've narrowed down the last couple options and think a winner was found.

2x0

IMO if going journal bearing, Garrett is the way to go. But for your goals, something like a basic T3/T4 57 trim would suffice.

Txdragon

I certainly didn't want a PTE journal. Too many horror stories on that one. The turbo chosen is a journal bearing GTW 5857 in .63 A/R. This one looks promising!

Balor_Gr

Good choice. Much smaller turbo than TNX40/60. And IF later you realise you have too much backpressure due to maxing the turbine housing you can get an 0.82 and call it a day.


Mad man calculations nets you a little smaller potential flow than 0.82 GT30 turbine wheel with your .63. Good set up for the D16.
Ask greg if he can make a mini EQ lovefab style manifold and yoll have a hell of a combo.
I REALLY like that compressor map too..



Mac can we do a GTW3476 with stage 5 turbine wheel?

Txdragon

Good info! I'm looking toward the insight of some of our more turbo savvy folks here to help make my decision and it's like trying to pull teeth. Lol! I'm awaiting some comparison info between this turbo and the stc hunter as I type this. The turbo chosen will be going on a GAW mini ram and I'm thinking I'm still keeping the wastegate at 38mm and in the 18-25 psi range.

TheShodan

iTrader: (14)

Not exactly using a GTW3476JB compressor wheel, but yes, something similar can be done with a Stage 5 turbine wheel, certainly.

NVturbo

sorry to say this but,,,,whoever is writing that on the graph has POOR PENMANSHIP. haha...looks like he/she is trying to write with their other hand. LOL

Txdragon

I can't blame on the penmanship. Mine isn't that great either. Lol. I've been told many times I write like a doctor. lol

NVturbo

haha...It's all good man. Just throwin' a bone at ya. I need to take my car out and burn some corn fuel this morning....LOL

Txdragon

Yeah that.. I'm disappointed now.. Prior to our move back in October, my version 2 build was supposed to include an E85 conversion but now, there's none available to me. Closest station that sells it is an hour and 15 minutes away.

NVturbo

The nearest gas stations with E85 around me are at least 25+miles from my house. 2 of them are Sheetz while the 3rd one is a BP. BP is about $.50+ more per gallon which is bullshit. All three stations are in opposite directions from one another. Sheets, North and East...BP, South. LOL

Sucks I have to watch the gas level in my car whenever I take it out. I do have a 5 gallon jug just in case, sitting in the garage. I want to get another container but those new "safety" spouts ARE HORRENDOUS.

DaX

iTrader: (1)

So @NVturbo , how many miles per tank are you getting on E85, and how many gallons is a fill-up on a Del Sol? Also, are you running flex fuel, or just straight E85? I'd like to consider getting mine tuned to run true flex fuel so that I can try to run E85 all the time, but will be OK if I can only get a tank of 93.

NVturbo

good question...

I believe I'm averaging about 22 ~ 25 miles per gallon, depending if I......uhm...step on the gas harder than I should. LOL. Sorry, I haven't been keeping tabs on how many miles per tank.

I'm running straight E85, no mixture. Prior to the start of the dyno session, we pumped out just about all of the 87 octane gas I had in the tank. Just make sure your in-tank fuel pump is E85 compatible. I'm using an AEM 340lph by the way.

This afternoon, I filled up 9 gallons into the car. Had about less than a 1/4 tank when I arrived to the station. Fuel capacity on a Del Sol tank is approximately 11.9 gallons.

Txdragon

I know fuel economy isn't that great for E85 in a regular vehicle. Cheaper in cost but you make more trips to the pump when using it in the ol' flex fuel mobile.
Now imagine having a tuned turbo monster, that averages 240 miles per tank on 93 octane with "spirited" driving, and picture that, tuned on E85. The same car would use 30-40% more fuel burning the E85. When you'd see 240 miles on regular gas, you'll see <200 on the corn.

NVturbo

totally agree. I think it really depends on the owner and the convenience factor. If the E85 gas stations aren't 2hrs away, that would be more idealistic. I don't mind driving a 25 minutes to fuel up since it's all highway miles anyways.

$2.59/gallon 93 octane VS $1.82/gallon E85

$31.08 ---- $21.84 to fill up......

Txdragon

Expanding here just a tad.

31.08 fill up approximately twice a month or 21.84 nearly 6 times.
we had a 2010 Impala flex fuel once upon a time. I drove 90 miles a day, round trip, to work. 400 miles driven a week, 15 gallon tank. I filled up every Sunday before work. When I was filling it with E85, I filled up every 4 days. So that's 4 or 5 trips to the pump on regular gas vs 7-8 with the E85. I really didn't see the savings at that point. Lol

NVturbo

In my case, I guess it works out fine since I don't drive the Del Sol often. It's more of power output comparison between the two...

Txdragon

For real! If you use it now and then or only for performance, it works out. E85 is a blessing and a curse at the same time. Lol!

DaX

iTrader: (1)

There's an E85 pump less than a mile from where I work, and I pass another one on my way home. I'm planning to have the car set up for flex fuel, that way if I just hate doing the E85 thing I can go back to 93 without much fuss.

Txdragon

You using Hondata or Neptune? Neptune I know is flex capable, but not sure about Hondata. Neptune can swap between 2 tunes without having to upload a separate tune iirc. It may have changed recently but you might look into that.

2x0

You learn pretty quickly how many miles you can make it before it starts to sputter lol Seriously though I was stopping almost every other day to top off my tank when driving a 40 mile round trip to work last summer, just to be safe. My CRX tank would also only take about 6.5 gallons to fill from empty... which yielded me about 120 miles safely before I'd need to fill. Hondata says I was averaging around 18-20 MPG.

With Hondata V3 at least I know you can wire in a flex fuel sensor, which is what I plan to do. You can then adjust fuel and timing based on the percent ethanol. I believe you can also toggle between different maps for different fuels, but I haven't looked into that much. I just want the flex fuel sensor so that it can adjust between variances in pump E85, which ranges between E50 and E80 in actuality.

turboLScrx

DaX

iTrader: (1)

I'm running Hondata. And yes, S300v3 is flex fuel capable. I should be able to wire the sensor directly to the analog input (no ethanol content analyzer required) and as 2x0 said, it will adjust the maps based on the % ethanol the sensor is seeing.

Txdragon

Badass!!