Cougar pinion/spurs...

[simoncrabb]

The manual says one should be able to mesh a 25 with an 83...

I presume the kit spur is an 83?

The biggest pinion I can get to mesh is a 23!

Why?

[Smartalec]

Did you run the Cougar today Simon?

[bigred5765]

The manual says one should be able to mesh a 25 with an 83...

I presume the kit spur is an 83?

The biggest pinion I can get to mesh is a 23!

Why?
manual dosant say you can run a 83 with a 25 pinion it just gives you a gear ratio for that combo,
and your right 23 is the biggest you can run propperly on a 83 spur witch is kit std

[ian h]

What is the internal ratio of the cougar sv?

[simoncrabb]

manual dosant say you can run a 83 with a 25 pinion it just gives you a gear ratio for that combo,
and your right 23 is the biggest you can run propperly on a 83 spur witch is kit std

Yeah it does, it says maximum tooth sum is 108, ie 83+25.

But that's what I want to know, if 23 is the maximum others have found you can fit. Hmm, though these setup sheets from Tom & Simon suggest they've run a 24 with an 83.

Aaaanyway, looks like I'll have to get smaller spurs to get a ratio for that particular motor.

Alec: I managed a couple of dry runs with it this morning at TORCH, and it's a blummin' lovely car. Mid-motor suits my driving style a lot better than rear motor.

[bigred5765]

ha guess they used the cat chart then hey, cant make a 25 fit i just tried
u can squeeze in a 24 but it is a squeeze,

[Michiel H.]

What is the internal ratio of the cougar sv?

2.6.

2.4 and 2.8 optional.

[Mossy]

I spoke to Tom last night and we not be running 83 spurs. I was given a first batch of prototype ones with no numbers on, so I assumed it was an 83. It looks more likely we are on 81, as i can make a 25 fit if needed and i do run a 24.

Si

[mikeyscott]

I'll have to go to an 80 I think in order to get the FDR I need for my SP V3 8.5

[Cockerill]

As Si said, we're not on 83's, but 81's (I've just counted mine). I dunno why I thought it was 83 but that's what's on all the setup sheets, should actually be 81.

[simoncrabb]

Phew, mystery solved! Cheers MossCock! :thumbsup:

[phil c]

So what size spur comes with the kit and why does it not say on it ? Or would that be to easy ???

[niggs98]

83 comes with the kit

[Cockerill]

83 and it does :thumbsup:

The pre-productions weren't marked, hence why I got it wrong :(

[phil c]

I got my car yesterday at bury and it does not say on the spur what size it is

[Michiel H.]

i need smaller then 80T, can i fit one from an other brand?

[mikeyscott]

i need smaller then 80T, can i fit one from an other brand?

Speak to RW racing

[Cockerill]

I got my car yesterday at bury and it does not say on the spur what size it is

Hmm I thought they had it engraved on it where the slipper pad fits, I could be wrong though :confused:

[phil c]

Nope deff not there tom

[mikeyscott]

Yup I didn't seem them on two kits.

I'll be fitting my 80 RW spur.

Think Neil will be doing some 79 a& 78 spurs :thumbsup: - I'm happy with mine, but had a few people mention that they want smaller spurs

[bigred5765]

the one in are kit was a 83 and it has no size marked on it,

[pfree]

I'm just setting my Cougar up now. I've read quite a bit about gearing on here but it's all a bit new to me to be hnest. At the moment I have a SP 10.5T brushless motor i'm going to use until i've got used to the car.

Can someone tell me what pinion I should use??? ( I have the standard kit gearing.)

[mikeyscott]

What FDR does the motor manual recommend? What motor is it?

[pfree]

sorry whats FDR? It's a speed passion 10.5 V2

[teamxray]

RW are doing 78 and 79 spur gears to fit the sv and sx2

[fastinfastout]

:o

if this is all new to you, then I would discourage you to run a SV.

I mean, the SV is an all out competition car. Not the best car if your starting out.

FDR stands for Final Drive Ratio, which is the final gearing of the car, which is calculated by, which in this case is:
spur (81 or 83?)
divided by
pinion (your choice)
multiply by the cars internal ratio (2.6)

with a 10.5, maybe an fdr of 8

so go for around 24 or 25 pinion to start off

[mikeyscott]

One what grounds?

You've got to start somewhere and you're already gone for a sensible motor.

RW will do smaller - neil@rwracing.co.uk

Regards,

Mike

[fastinfastout]

where am I?:eh?: