Technical What's the red line rpm?

[nitro_warrior]

So I decided to buy and fit a rev counter from ebay. I think I thought the engine revved a bit higher than it does. What would people consider the red line top end of the 999 fire engine is?

In other news amusing though it is I'm going to have to do something about the light. Why do (cheapo) after market tachos have to come with white dials and blue back lights. Unfortunately it's not as easy to disassemble as I had hoped. Comedy pictures of the garishness

 

[panda1408]

Somewhere approaching 6000rpm maybe? Max power for 999cc is at 5000rpm so no need to go more than that I suppose.

 

[Didge3]

Peak power is technically 5200rpm I think. I have quite an expensive tach because I wanted it to match the dash gauges as best possible, I've had my 750 past 7000rpm when I asked the same question about a year ago. It probably would've kept going but it was very loud and there wasn't really any 'pull' left so I changed up.

 

[Palio]

I'd say about 6000 in theory. Out of interest FIRE engines used in rallying (1100 versions from memory) revved to 11000 - they don't have a reputation for being indestructible for nothing!

 

[dragonwagon]

Realistically I would venture to suggest somewhere around 6500rpm - it would be absolutely pointless to exceed this as nothing useful will happen.

 

[nitro_warrior]

Thanks for the input everyone. I think that's where I got to with my testing. Before fitting I would shift at around 5000-5500 when accelerating quickly, but I tried going harder with the tacho and I definitely wouldn't want to go over 6500. 11,000 in racing FIREs is pretty crazy!

Now I just need to sort out the ridiculous blue light and maybe make and print a black face for the dial.

 

[firstcar-Y10]

Just had a quick look, Sei sporting rev counters have the red line marked at 6k with an 1108.

 

[nitro_warrior]

Well I have taken the rev counter back off and I will swap out the blue LEDs for something a bit less over powering. I will also make my own black face for the dial. At the same time I have decided to swap out the dash lights for LED equivalents.

Does anyone know the code for the dash lights off the top of their head? Is it 286? Was just digging around on ebay. Can anyone recommend a good light both for a sensible colour and brightness? Thanks

 

[onemanmade]

Well I have taken the rev counter back off and I will swap out the blue LEDs for something a bit less over powering. I will also make my own black face for the dial. At the same time I have decided to swap out the dash lights for LED equivalents.

Does anyone know the code for the dash lights off the top of their head? Is it 286? Was just digging around on ebay. Can anyone recommend a good light both for a sensible colour and brightness? Thanks

I personally like the standard green

 

[nitro_warrior]

Well. I have dismantled the the rev counter and decided to make my own dial in a more in keeping black. I'm quite pleased with the results, though I just realised I should have removed the 8000 and made the red from 6000 to 7000.

 

[Most Easterly Pandas]

1.1 Selecta's electronic limiter was fairly high from memory, something like 7400-7800rpm iirc, but this is going back some now

 

[nitro_warrior]

Ok I have changed the blue LEDs for yellow ones and fitted my homemade black faced dial

Should maybe have gone for green LEDs but, i'm happy enough and not dazzled to distraction!

 

[firstcar-Y10]

That's lovely, some transformation there

 

[panda panda]

That looks great with the black face, I can only ever find those blue ones on ebay and always discount them because of that. Did it come apart easily?

 

[kolza]

Mine hardly reaches 6000rpm, even when doing drag racing :slayer:.

 

[panda panda]

Mine hardly reaches 6000rpm, even when doing drag racing :slayer:.

I love that of yours Jacob - fits the panda perfectly.

 

[nitro_warrior]

That looks great with the black face, I can only ever find those blue ones on ebay and always discount them because of that. Did it come apart easily?

It was fairly easy to take apart and ditto replace the LEDs. Shouldn't pose a real problem for most garage tinkerers/panda owners!

If anyone wants I have a pdf version of the face. Which should be good for most rev counters. It's 48mm (2") which I think is pretty standard, and should print out to 1 to 1 scale....

https://mediacru.sh/gCrqMYw050Xd

I made it in Inkscape so if anyone wants to edit it here is the .svg file

https://cdn.mediacru.sh/vdvDjuOI9hjs.svg

 

[nitro_warrior]

Further to that. I printed the dial on photo paper, but on it's own that let too much light through for my liking, so there is actually a second dial printed on card layered behind the first to block more of the light.