Marco, i did have the set with no centres but managed to get a set easily enough, just had to have the wholes thru the centre of the mounts opened up by a couple of thou but all easily overcome!

theyve been brilliant, wasnt quite sure what to expect at first, have made the back of the car feel alot more fixed on track.

my only issue was when i smashed my rear diff, obviously with the beam being basically solid mounted it wasa herendous noise limping it home - thought someone was in the back of the car smashing a metal dustbin lid with a hammer!

only reason i ask is a friend was enquiring about them, but ill see if hes serious before i ask about them again.


Cheers

 

LOL

I have only one box built but have got 2 complete kits ready to be built




there wouldn't be any point in building the others if it doesn't last in Simons car simple as that realy

i want Simon to be honest either way if it's good or bad, i 'm ready for the worse to be honest

if it breaks i would feel a bit bad because i know the hastle of fitting 4wd boxes they do take a long time to fit

marco

 

hi mark

will do

 

Hi kelv

when you broke the rear diff you would have heard loud noises and vibration really bad as metal doesn't move rubbers do

as for noise with them i found then no worse than poly bushes

well if your friend is defo intrested i'll get another 2 sets made up

brom had the last set of me

 

this must be the years biggest most incorrect post!!!!!!!!!!!!!(iam being polite).

 

please explain Tim?

and I will have had to go a long way to beat Markk's 'you won't EVER sell that FFD box on Passionford'

P.S Tim, after you have finished 'trying' to explain what I have said is sooo wrong.... You may want to try and explain the little inconsistencies that Inspector Doug has found...

https://passionford.com/forum/viewto...9021&start=190

 

BTTT for Tim

Or anyone else who can help as I REALLY can't see why my post is 'the years biggest most incorrect post'

 

Lee, I can only think that Tim would not rate any of the above named gearboxes as being any good due to past experiances............

 

And they are all being used ON THE ROAD by people very successfully!!!!

well I don't know alot about the R+D kit but the rest are. They are TOTALLY fine for 440bhp cars on the road!!!!!!!!

I really can't see what I have said that is sooo monumentally wrong?!?!?!

 

Hi lads


if this box works out , i will get a big tooth gear kit made for the T5 2wd

etheir straight cut or helical

cheers marco

 

Hi kelv

do you want your old rear diffs rebuilt ?

i could get them rebuilt with an uprated VC to 180Nm dyno tested on the Nm's

with heavy duty gear set



cheers marco

 

whoohoo Tim, please let me know mate. I have a dunce cap hanging over me and want to get rid!

 

Hi lads

Just to let you know , I have spoke to Simon who is testing the mullit box

he has just told me that the box has died


he said it was the box was fantastic in the first session and no probs what so ever

in the second session on the second lap he lost all drive

I personly think the layshaft has broke which i know is the weakest part in any striaght cut box basically the shaft is standard part in pattern only

the gears are fine and the box hasn't exploded so i would say the layshalf has broke at the front where it goes to the VC hence no drive

Im a bit sad to be honest



I won't know for a 100% untill the box is striped down and looked at.


I am kind of happy in away that it's not the gears as the gears are very strong

all i can do now is try to sort something out with the layshalf

i'll keep testing it untill it's a proven product i wont give in


at the end of the day things dont go right first time around but i'm sure i will get there in the end.



all i want form Simon it to be totaly honest about the box

if the development starts to get too expensive ill just scrap the idea but hopefully it wont come to that

thanks everyone for your susport

marco

 

Sad to here that marco
But as you say, glad it wasent the gears, so keep your head up, and keep going, does sound like you have the right idea

Best of luck

 

Sorry to hear it, but bounce back is the best option.

 

thanks lads

it will get there in the end it's just cost but like i said if it's going to be too expensive i will scrap it and i can say is that i have tryed

i know theres a market for a good fast road/track box " i aslo know that the price has too be right also " and thats what i'm trying to do

I can get layshatfs re made even stronger but if it's going to cost a fortune then it's not worth all the agro

it's catch 22 .... i could get another layshafts made in better matrial alot better to this one (which i will have to).. it would be the same again will it work ?

the layshalft is made from a billit and then machined to suit

and if the cost is too expensive you might aswell get another uprated box that is allready on the market

i know i would have to compete , if the box proves itself then i have a product but at what cost

i think of something when i get the box back of simon


on a lighter note it's good job i never sold it to Simon he would be looking for a refund


cheers marco

 

Gutted for you. I hope you aren't having to pay the development costs yourself are you mate?

Are all the gears straight cut out of interest?

 

at last you are trying Marco.

hope it works out mate.

 

Keep your chin up Marco At least you have had a go, and if you stick at it, hopefully you'll get there in the end!

I went out with Si last night to put a few more miles on the box.... shame its let go, but 1st attempts rarely work i suspect!

 

marco that all in the name of R+D pal ( that not the transmission company btw)

all you have to do is to make it even better, i'll donate a few quid to the cause if you like if your paying it all yourself pal ?

mark

 

Hi lee

I have backing from 2 very good people in the trade to get the box working I only have to pay a bit towards the devolpment


yes all the gears are striaght cut big tooth gears but they arn't that noisey compaird to some other striaght cut boxes

I was thinking of getting a similar box done with helical big tooth gears

for 100% road cars that might happen if this box works out

marco

 

Hi mark

thanks for your offer it's not all funded by myself i only have to make a contribution towards cost and development

marco

 

thanks for all your kind words

 

isn't it the layshaft that's the problem with std boxes? does it flex meaning that gears don't mesh properly anymore?

 

yes, the layshaft is the problem in standard boxes and 3rd gear on load

the layshaft in this mullit box is the same in parten only,

it's machined from a billit basically and exact copy but in stronger matrial

if i was to use a standard layshaft the box wouldn't last 2 mins on a track

marco

 

Marco: i have an fixit on my car, and a few of my friends in sweeden also use theese boxes, without the layshaft problem, but they dont use this on the track as much as you guys do, do they brake because of the downshifting into corners aso?
Cause the fixit is rated to 600+++brake, and this uses the standard layshaft?

 

marco polo thanks marco, thought i'd heard that somewhere.

hope you get it sussed

 

Hi Bud


track days are very hard on any uprated box and using an uprated box on the road isn't going to get the same comparison as you would get thrashing it on a track and would have even more stress on a rally car

i don't know how they break i think just down to 4wd load on the layshalf

cheers marco

 

Gutted is not the word......

Just thought I should post up my findings so far -as Marco has said I have managed to break the Mullet / Mullit (how do ya spell it?) box already

Having spoken to Marco on many occasions in the last few days I'm starting to get an idea of how much thought and money he has put into this new box - so I'm gutted for him.

HOWEVER WE WILL BE BACK

I'm going to do my best to get the box out tomorrow or Monday, and take it to Marco for his inspection - We need to find out what I have done to it - then whatever is wrong will be resolved and retested.

It could be my driving (I have no mechanical sympathy ), it could be my car (a problem with the front diff / prop affecting the box) or it could be that something in the box may need upgrading / modifying.

Whatever it is, we will correct it and we will be back to more testing.

I personally WANT this box in my car, and am prepared to do whatever needs to be done to get this box working 100%. For my own benefit and for Marco to see a return on all his work. He deserves it

So anyway, here's some pics of me yet again on ANOTHER tow truck





And a pic through the reverse gear switch hole on the MT75 boxes - first my original box with SMALL TOOTH HELICAL gears



And Marco's Mullet / Mullit box with STRAIGHT CUT BIG TEETH. Think the differences visually are obvious!



On the road the box sounds AWESOME. It is NOT as loud as some of the cars I've heard running these type of boxes. BUT you can hear it and I think it's excellent. Sounds a little like reverse gear, but going forwards!!! But in a good way. 4th gear is SILENT, as it's a direct drive thingy (Marco can explain why properly!!!) In 5th at Motorway speeds it is NOT intrusive at all - you can hear it, but it's not bad. My exhaust which is 99dbs at 4.5k rpm is louder - so it is not going to be a problem for me on the road.

The sound just adds to the experiece - like the flames I get on the overrun, like the pops from the exhaust, the chatter noise and the induction whoosh - it's another thing that had put a HUGE smile on my face everytime I drive my car.

I'll keep you all posted on progress, I'm determined to help Marco to succeed - if only to see the Mullet / Mullit project become a household name

The Mullet box is dead, LONG LIVE THE MULLET BOX

Si

 

Hi Si


thanks for testing it for us , i'm sorry it has let go

I'll try and sort something out with it

i'll collect the box of you sometime this week

and go from there

thanks ever so much mate

The Mullit box is dead, LONG LIVE THE MULLIT BOX

cheers marco

 

Only just seen this. Hope you get this set back sorted out Marco and Have better luck with the next box. Top top work!

 

cheers mate

 

Rome wasn`t built in a day matey......

Sure you will perfect this Marco and you have deffo got the best test guinea pig available....

Keep at it mate,will be a success in the end...

 

cheers bud

 

good luck Marco

 

I thank you

 

cheers bud

 

sorry to hear the box let go, but like others said rome wasnt build in one day!

Gears look mighty fine!
and not that much noise would make it easier to sell them as well the price range

 

cheers son

 

You say have to be either cheap, indestructable or fast shifting to be something new.

I would classify the new Fixit version as indestructable, atleast its running in several high powered cars and ive never heard of one that let go. 750+ bhp doing quarter mile runs ie mad launches. Its the the diffs that brake up instead.