30 replies to this topic

[fusionfanatic]

hmmmm am i the only person whos got a sump guard because it looks cool?

No that's party my motivation!

[fusionfanatic]

If its light weight and made of ally wont it be completely useless at guarding the sump?

I guess it depends on the design and thickness, didn't the old rally mini's have aluminium ones?

Yeah there are plenty on the market heres a few:
http://www.minispare...=70&prod_id=101
http://www.demon-twe...p & Tank Guards
http://www.minispare...|Back to search
http://www.minispare...RD.aspx|Back to

theres a few to choose from from cheap to the more expensive offical one!

Those are all really flimsy,you wouldn't want to hit anything with one which kind of defeats the object really. The one works ones were an great chunk of cast alu

Any one know how much this weighs?

[Tamworthbay]

These.. http://www.ebay.co.u...=item3f17b6791c

It is just a layer of Kevlar covering CSM, Chopped strand mat really isn't the stuff to making it out of. It has relatively low strength and wear resistance isn't great. Could be worth asking if he would do a better one. I would suggest 5 layers with outer two Kevlar and inner three something like a 100gm/m2 2x2 twill carbon or high quality GF. It would be twice as good and weigh half as much.

[Cooperman]

Composite sump guards have not worked in rallying at all.

[mini93]

Composite sump guards have not worked in rallying at all.

Dont entierly agree. useless for anything on gravel but tarmac single venue where the rules dictate you require one even though in most circumstances its really not required id go for a composite. alot of outlay for a bit of weight saving though.
My old boss has one ready for his 205 tarmac car when that everualy goes on the road



Anywho. im assuming most the alloy sump gaurd on the market arent particualy durable. Ones iv seen before fitted to rally cars (where alloy was used instead of steel like alot of rally cars use) have been made of a T6 alloy. More expensive, more difficult to press to form and not really viable as a "poser" sumpgaurd
The ones mentioned in the 1st bunch of links will be adiquate for daily use. That or the 6mm RAC style steel sumpgaurd, best all rounder on the market for its price

Edited by mini93, 02 November 2012 - 11:29 PM.

[Cooperman]

I understand Pro-Drive tried an advanced composite shield and it just failed very quickly. I know when I was rallying with Datsun the Japs tried making a kevlar/grp undershield, but that broke the first time it landed after a big yump on tarmac.
I can't think of any professional rally team that's had any success with composite undershields.

[new_zealand _minis]

only strong weight saving one would be a steel one , that cast alloy one looks heavy . thin alloy one looks to thing to help in big event. ( but would fill the looks factor )

http://www.demon-twe...p & Tank Guards

a composite one will be good if you are planning on deflecting stones about 6mm round

Edited by new_zealand _minis, 03 November 2012 - 08:42 AM.

[Tamworthbay]

Composite sump guards have not worked in rallying at all.

Dont entierly agree. useless for anything on gravel but tarmac single venue where the rules dictate you require one even though in most circumstances its really not required id go for a composite. alot of outlay for a bit of weight saving though.
My old boss has one ready for his 205 tarmac car when that everualy goes on the road



Anywho. im assuming most the alloy sump gaurd on the market arent particualy durable. Ones iv seen before fitted to rally cars (where alloy was used instead of steel like alot of rally cars use) have been made of a T6 alloy. More expensive, more difficult to press to form and not really viable as a "poser" sumpgaurd
The ones mentioned in the 1st bunch of links will be adiquate for daily use. That or the 6mm RAC style steel sumpgaurd, best all rounder on the market for its price

T6 is just a heat treatment not a grade, the grade would have been something like 2014, 6082 (also called HE15 and HE30), so you end up with 6082T6 etc. There are loads of different grades and most if not all can be had in T6 treatment. I would guess they would be 2014T6 as that would take a bit of punishment but isn't too expensive.

[mini93]

T6 is just a heat treatment not a grade, the grade would have been something like 2014, 6082 (also called HE15 and HE30), so you end up with 6082T6 etc. There are loads of different grades and most if not all can be had in T6 treatment. I would guess they would be 2014T6 as that would take a bit of punishment but isn't too expensive.

My mistake, in conversation people dont bother mentioning the grade, just that it is infact a T6 alloy

[Tamworthbay]

T6 is just a heat treatment not a grade, the grade would have been something like 2014, 6082 (also called HE15 and HE30), so you end up with 6082T6 etc. There are loads of different grades and most if not all can be had in T6 treatment. I would guess they would be 2014T6 as that would take a bit of punishment but isn't too expensive.

My mistake, in conversation people dont bother mentioning the grade, just that it is infact a T6 alloy

It's a common thing. I have had discussions with people who will argue till they are blue in the face that the grade was T6 or T2 or whatever. Quite often it is when they have been using a supplier who tries to make out it is 'special' alloy when it fact it's plain old HE30. At the end of the day we can't all be experts on everything! I work with the stuff everyday and build electric race cars with it so it pays to know what stuff does what! For a sump guard I would still prefer steel though, aluminium doesn't take 'rock strike' type impacts as well unless it is so thick that there is no weight saving. A brilliant website for info on alloys is metalweb, they are one of, if not the worlds biggest suppliers. If you still aren't sure ring their Birmingham branch and ask for Val. I am pretty sure there is no question she can't answer or if there is she will know someone who can.

[mini-luke]

I like the look of the inno style ones, they seem to offer the best cooling

http://www.minispare...id=32757&title=

I've got some really thick steel bar which could be easily made into one

[minispaniard]

I have one of the Inno type ones, never got round to fit it... it feels very sturdy and quite heavy for its size. I guess it's more than adecuate for road use and shouldn't have oil cooling issues unless someone corrects me (?).

[jaydee]

It weighs about 7kgs
Much bigger and stronger than the original inno steel guard, for road use you wont need a cooler.

[Cooperman]

I use an all-alloy fully welded guard which was originally made for Mini Spares as a prototype, but manufacturing costs would have been too high for the small volume they would have sold. It has done 33 rallies, including international Historic events plus a lot of forest miles in the UK and is still more-or-less OK. It's looking a bit battered, but it has held up very well over the years.

[minisi35]

My RAC type one has been a great investment, it has been bent in a couple of places after heavy landings and ive had to use a 8 pound sledge hammer to straighten it out, so you can tell how strong it is