Boosting the performance of an 84S - best option?
08-22-2006, 09:55 AM
#76
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Originally Posted by tv
The A/C system does involve a nice little chunk of weight along with the spare tire (need auto service), plus removing it, removes a belt and your car will run cooler when that a/c radiator plus the aux fan are gone. The condensor, compressor, fan etc. do add up. When you do your exhaust, you will want to hear it with the windows open.
A nice 928 on those curvy english country roads gotta be a hell of a lot of fun.
A nice 928 on those curvy english country roads gotta be a hell of a lot of fun.
Great - I feel a plan coming on...
The roads are a lot of fun, Devon is known for the high banking on the side of the roads so the sound is just bounced back at you constanly... The down side, I sit on the wrong side of the car - the lanes are narrow, my head is in the hedge, - you know how wide a 928 is - it keeps the passengers quiet as you head for a tractor (towing a threshing machine normally) flying around a left hander!
There are days when you want the wide open roads....
08-22-2006, 10:10 AM
#77
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Originally Posted by SwayBar
How 'bout some link-age?
http://forums.corvetteforum.com/show....php?t=1466277
About half way down they claim 11hp switching to an electric water pump - interesting idea. Bounce that one off Todd.
Originally Posted by SwayBar
To make it easy, let's assume you're running 100% E85. The E85 per volume has half the BTU's of gasoline, thus, cuts your horsepower in half, unless you compensate by injecting twice as much into the engine to do the same amount of work as one-half the amount of gasoline.
Originally Posted by SwayBar
It is a simple matter to figure out ratios such as 60/40. But once you tune the car to run on 60/40, you must run a 60/40 mixture which means finding a gas station which has E85. If you don't find a station with E85, your engine will be VERY rich with straight gasoline.
I'm just throwing numbers out there with the 60/40 - not sure what ratio would be "safe". One way to look at E85 is a simple (see cheap) octane booster and fuel injection cleaner. Add 1-2 gallons with every fill up.
08-22-2006, 10:38 AM
#78
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Originally Posted by Hacker-Pschorr
This started in Todd's garage when we started talking about fuels. He is more interested in this than I am - since being able to run close to 100 octane opens a lot of doors for his ideas. Who knows, with some tuning, one could maybe come up with a "switch" to go between regular and E85. The kits being produced for newer cars (Nissan is one I know about, friend has one) they install a fuel switch. With SharkTuner - may be possible to do something?
I'm just throwing numbers out there with the 60/40 - not sure what ratio would be "safe". One way to look at E85 is a simple (see cheap) octane booster and fuel injection cleaner. Add 1-2 gallons with every fill up.
I'm just throwing numbers out there with the 60/40 - not sure what ratio would be "safe". One way to look at E85 is a simple (see cheap) octane booster and fuel injection cleaner. Add 1-2 gallons with every fill up.
08-22-2006, 10:44 AM
#79
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Originally Posted by Andrew Olson
You're giving me ideas... Damn you!
Wouldn't it be great if we (the 928 Rennlist bunch) were able to E85 our cars before Porsche does the same with their current line up?
If Porsche has already converted their cars to E85 - please ignore this post.
08-22-2006, 11:17 AM
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Knowing nothing about E85 except that the HP rating is far less with it and that it costs about the same as regular 'ol gas, are there any special compatibility things you need to do for e85? Do you need things like new hoses, o-rings, etc? Or is it a matter of fuel delivery?
If it's only fuel delivery, you could probably make a 928 run on e85 in about 2 hours. You'd definately need some bigger injectors (or some insainly high fuel pressure) assuming it takes more e85 to reach stoich. Then it's just a matter of using the sharktuner and a WBO2 sensor to create the new fuel maps. Not sure how the performance would be... so you let us know how it goes, ok Hacker?
Honestly, the idea you gave me was to have multiple selectable chips to run different fuel maps for tuning or racing purposes. It would be WAY faster to have this setup that having to open up the LH every time you want to change the fuel map. More of a convenience thing than anything else.
If it's only fuel delivery, you could probably make a 928 run on e85 in about 2 hours. You'd definately need some bigger injectors (or some insainly high fuel pressure) assuming it takes more e85 to reach stoich. Then it's just a matter of using the sharktuner and a WBO2 sensor to create the new fuel maps. Not sure how the performance would be... so you let us know how it goes, ok Hacker?
Honestly, the idea you gave me was to have multiple selectable chips to run different fuel maps for tuning or racing purposes. It would be WAY faster to have this setup that having to open up the LH every time you want to change the fuel map. More of a convenience thing than anything else.
08-22-2006, 01:41 PM
#82
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For the post MY87 you can use the standard Cat fuel mapping for ordinary fuel, then remap the non-cat map for your exotic fuel.
Then either map can be selected at will by a simple switch on the 8 way code plug.
Then either map can be selected at will by a simple switch on the 8 way code plug.
08-22-2006, 01:50 PM
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Originally Posted by Herr-Kuhn
Guys, GROW UP.
08-22-2006, 02:00 PM
#85
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Originally Posted by Herr-Kuhn
Guys, GROW UP.
https://rennlist.com/forums/showthre...64#post3267764
08-22-2006, 02:52 PM
#86
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Originally Posted by SwayBar
Originally Posted by SwayBar
Twin-turbos, two peas in a pod, and doubly-dysfunctional personalities.
...and Audi, BMW, VW, SAAB, Volvo, Mazda, Mitsubishi, Toyota...
08-22-2006, 03:03 PM
#87
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Looking back at this thread, who in the hell jumped in and started screaming "get a turbo" to begin with? I'm to lazy to look right now.
Does anyone even offer a 16V turbo kit? Nope
Does anyone offer a tested turbo kit of any kind for 928's? Not that I know of - one is in the works, unless there was a major announcement thread that I missed - still in the design / testing phase.
So really it was a pointless option offered to a newer member looking for advice. Turned into another dick waving thread. So, who won? Who has the biggest dick today?
I did something this morning that all of the turbo fans were unable to do (well, except Mark, John, his alter-ego, and a few others) I drove a boosted 16V 928 to work. And with any luck, I'll drive it home at 3:30. Tires smoking all the way.
Does anyone even offer a 16V turbo kit? Nope
Does anyone offer a tested turbo kit of any kind for 928's? Not that I know of - one is in the works, unless there was a major announcement thread that I missed - still in the design / testing phase.
So really it was a pointless option offered to a newer member looking for advice. Turned into another dick waving thread. So, who won? Who has the biggest dick today?
I did something this morning that all of the turbo fans were unable to do (well, except Mark, John, his alter-ego, and a few others) I drove a boosted 16V 928 to work. And with any luck, I'll drive it home at 3:30. Tires smoking all the way.
08-22-2006, 03:20 PM
#88
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Holy crap! I just re-read the entire thread! :roflamao: I missed all the juicy stuff. I must have been brain dead! Probably a good thing otherwise I might have gotten myself banned! 
08-22-2006, 03:29 PM
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Originally Posted by Hacker-Pschorr
I did something this morning that all of the turbo fans were unable to do (well, except Mark, John, his alter-ego, and a few others) I drove a boosted 16V 928 to work. And with any luck, I'll drive it home at 3:30. Tires smoking all the way.
...but if I had a second one it would be a turbo built by me. If I was going to supercharge one (#3), I would also do it myself. So for some of us it doesn't matter if they're one-offs, half *** kits, complete kits, or kits assembled on the car by the maker.
08-22-2006, 03:37 PM
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Originally Posted by FlyingDog
Some of us aren't rich enough to have 2 928s, one of which is boosted...
Originally Posted by FlyingDog
...but if I had a second one it would be a turbo built by me. If I was going to supercharge one (#3), I would also do it myself. So for some of us it doesn't matter if they're one-offs, half *** kits, complete kits, or kits assembled on the car by the maker.
Cool - I do not have the fab skill to attempt something like that on my own. It's on my list to teach myself how to weld.
Besides, with Jim Page, Tim Murphy, and Todd Tremel all within a few miles of my house, it would be silly for me to even try a one-off setup.