Rob Edwards

Low S/N ratio in most of the thread.


http://www.practicalmachinist.com/vb...-query-216251/

Gregg K

Yay! I was subconsciously hoping one of you guys would get that tensioner. And the guy who sold it used to own a 928. A great guy.

I remember it wasn't too many years ago I could still get many of the parts for my '55 Chevy pickup. Kragens. Amazing.

I think the handwriting is on the wall. And you may disagree with me, but I think electric cars are the target. It just costs too much money to mine, mold, machine, grind valves and gears and all of the silly stuff that goes into an internal combustion engine.

There is a 911 that a company is converting over to a 200 hp electric motor. It has 700 lb-ft of torque right off at 0 rpm! If it weren't for battery weight, that car would have better performance than the best 997 GT3. They only have 500 lb-ft of torque, and not at 0 rpm.

My guess is we're playing in an obsolete genre. And I'm really anxious to start enjoying electric. When I was in school as an engineering student, one of my friends was doing a senior project at Ford. He came back one morning saying he had just driven the fastest car he'd ever been in. An electric prototype. And that was 1988.

Vilhuer

See posts #49 and #75.

hacker-pschorr

#75......at least the first half of his post is true, the 928 engine is technically a big block

GregBBRD

There's a whole bunch of difference between the Laso pump and the Porsche pump, besides price. I personally think that the two pumps are correctly priced...when you compare them closely. I'm not sure I've ever had a new Porsche pump fail with under 60,000 miles on it. With the Laso, I'm thrilled if they aren't leaking out the weep hole, the same year we install them.

We install both types...I just won't warranty the Laso pump...had way too many fail.

BTW...Porsche started putting plastic impellers on all their 928 water pumps, in 1987. Laso finally figured this out, last year.

SeanR

Who is P928 on the gear forum?

AO

No public company wants inventory. You can't spend it. And "just in time" doesn't work with relatively low volume parts.

robot808

I absolutely love that they broke into a hp vs torque debate. Classic.

Speedtoys

I dont disagree with you, but I'll claim that you're being pretty short sighted.


People will always wanna drive a car for a longer distance than the battery will last...and for that, we have engines. There exists no alternative for this.

backnblack

I didn't have time to go through this whole thread but did anybody step up to the plate on this yet? I talked to my machinist yesterday and just showed him a picture of the and asked him what he thought the cost would be out of 6062 aluminum with a hard anodized coating in a quantity of 10 to 20. I told him that the dealership was getting about 200 bucks and he would need to be lower and he said that would be no problem. I could look into this further if there are people really interested or is this thread an exercise just to see what the options are. I would need an old set to reverse engineer from .
Let me know if you guys want me to pursue this.


Cheers
Matt

Speedtoys

I believe Roger at 928sRus is hot on it.

robot808

There currently exists no alternatives. Who is being short sighted?

dprantl

Really? I thought that avenue was closed:

https://rennlist.com/forums/8166546-post269.html

Dan
'91 928GT S/C 475hp/460lb.ft

Landseer

In the context of the overall thread, Roger is just refering to one manufacturer, Gates, as requiring excessive set up fees, in a response to somebody elses suggestion to contact Gates.

My assumption is that progress continues on other fronts.

He needs to ensure a solid commercial solution, so it probably takes some time.

Clearly we can each find a local or regional shop to make some sort of cam gear for us if needed, but I'd rather wait for a proof solution.

Vilhuer

There is simple solution to electric car range problem. Make electricity from hydrogen. Anything else is science fiction from practical point of view for a long time. For example changing entire battery pack will not work in real world for multible reasons and there are physical limitations how quickly batteries can be charged even though they are geting better all the time. Only practical problems left for hydrogen is to how to keep it from leaking out from containers and fire hazard. Problem of fires will not go away but its not any worse than using natural gas. Which we will have to do in 10-20 years if hydrogen economy isn't taking on.