just fitted decat

[Nafoff]

well i went out last night got the car up on stands and then sprayed all the bolts with wd40....

went back out this morning and got underneath to undo the bolts....2 moved and 2 were fooked...at which point i decided to go to a friends garage and get it up on ramps..

once there we had to use lots of different tools to get the 2 dam bolts out....air saw..air chisel...lol

got the bolts off and fitted the decat with new gaskets also...used paste aswell...

was sticking below 3k on the minute drive home but could still notice the better pick up...it didn't seem that much louder either



a quick question..am i best to leave the paste aslong as possible to set?

 

[Waitey]

Not really mate. Will be set after about 10mins once its been heated. Now go out and thrash it!

 

[Nafoff]

ok...i hope so...will be going out for a drive later then i think

 

[Ross16V]

wicked. a large description of results please!

 

[dannyboy]

yep and video's of the popping ;o)

 

[Ross16V]

agreed

 

[Thomss]

DOOOOOOO IT! Get them up

 

[Nafoff]

i went for a bit of a longer drive again but again kept it below 3k......

when are most people getting there popping......?

also its weird the exhaust seems to be noisier at the end now were as before it seemed to be noisie all the way through...lol..if that makes sense

 

[Rhino172]

Just rag it to the redline in 3rd and naturally let the car decelerate maybe even tap the go pedlle ever so slightly and you'll get some luuuuvly pops!

 

[Lunner]

Backing off from about 5-6k, and blipping the throttel on teh rundown sometimes produces flames

 

[Ross16V]

just pm'd you lunner.

 

[JimmyMac81]

Your'll find with a de-cat that your'll lose low down revs but only an ickle bit due to less back pressure.

It will feel looser at higher revs. next step is to get a manifold, maybe a 4-2-1 branch manifold

 

[Nafoff]

Your'll find with a de-cat that your'll lose low down revs but only an ickle bit due to less back pressure.

It will feel looser at higher revs. next step is to get a manifold, maybe a 4-2-1 branch manifold

even between 2 - 3k which is all i have been doing today as its on short trips it feels alot better on pick up......

i will have to wait til tomorrow to find out bout the pops...wish i could see the back for flames.....am just really concerned about the connection blowing although i used new gaskets and i used the puttey stuff...am i just being soft though

 

[The Fatty]

they wont blow if done up tight and the cars been run for about 10 mins....leaving it overnight will do nothing as the heat paste drys with heat...if you read the tube, it should say "let the engine idle for around 10 mins"

 

[The Fatty]

did you use the holts gungum exhaust paste? (the one in the red/white tube?)

 

[Rhino172]

Backing off from about 5-6k, and blipping the throttel on teh rundown sometimes produces flames

knows it!!

 

[Lunner]

just pm'd you lunner.

Sorted

 

[Nafoff]

did you use the holts gungum exhaust paste? (the one in the red/white tube?)

i had a small tin of it yeah..but as i got it out the guy were i did it had an actual gun thing so i used that instead.....

 

[The Fatty]

when i put mine on/off i just drive it low revs for about 5mins, then i get bored, and start planting the pedel...never had any troubles.

 

[Nafoff]

cool..well i went for a 20 min drive at low revs..so i guess it will be alright...

 

[domn8]

POPETY POP POP.. nice, mine pops at idle sometimes if you blip it and on deceleration from higher revs. Bring on summer so that I can have the windows open to hear it better, try driving through a built up area so the sound reverberates back off the buildings.

 

[Nafoff]

well i had the 20 mile drive into uni this morning...and i didn't really get that many pops at all...i was trying but it seemed that it didn't want to....i had a few but not loads like others are talking about...

i have got some tapping somewhere to..probably my centre box...not constant but annoying

 

[Ali]

Loud, more grunt...Sod the popping!!!! lol.

 

[Nafoff]

its it a bit louder yeah..not loads though i would say....can definately feel the differnece in pick up

 

[Lunner]

I've got a straight through centre section on mine too, only ever get popping if i use optimax

 

[Dan@SJM]

isit a silenced decat?

 

[Lunner]

Mine, no its a Lunner Brand De-cat, un silenced, the way they should be

 

[Rhino172]

mine is silenced and it's pops like a b**ch and spits flames every now and then. I do however have a 4-2-1 manifold on mine aswell tho!

 

[Lunner]

I think alot of it is how the car is fueling, obvously if its running rich then its gonna overfuel on the overrun, where as if its running lean then its not

 

[The Fatty]

if it pops id say the engine needs a remap...

also freebone - you have same problem as me, the mid box/center section goes tits up when the cats removed. and it makes the really quiet, if possible i would remove it.

@ Lunner - where did you get your center section from? im trying to get hold of one for mine. are the early mk1 ph1 center sectons the same length as the mk1 ph3's?

 

[Lunner]

Got it made up at powerflow.

1.2 centre section without teh silencer is same length, but bore is too small

 

[Nafoff]

well when i put the decat on i then took a connection off the battery for 5 minutes...then put it back on and started the car...this should of reset the ecu...therefore i am guessing my fueling should be right......hence the reason i am getting little popping....

fatty - my exhaust isn't exactly quiet.....its just tapping ever so slightly on a heatshield..thats all

 

[TomS]

Nice one mate, sounds good

 

[Ross16V]

resetting the ECU? is this the propper way to do it?

 

[Nafoff]

resetting the ECU? is this the propper way to do it?

i was told this by a renault technician...a good one...and it all seems fine..i think this is why i am getting little poping and flames as now the car is fueling right...

tom me son...your on flame watch tomorrow

 

[Ross16V]

right ok ill bear that in mind. cheers

 

[The Fatty]

well iv just replaced the silly "center section" mid box with a str8 thru....what a diff! so muh better. The sound is simply AMAZING! and guess what? pop pop pop's nicely to

 

[The Fatty]

btw the st8 thru pipe cost me £20 new, so not bad really! was expecting it to be more!

 

[1fast6]

I've found that with my straight through centre section and decat system, 95ron fuel will pop an average amount whereas optimax won't pop that much at all. Anyone else found that?

 

[Nafoff]

well it seems that my decat done me well

went on the janspeed rolling road today and ran 117.44 atw's roughly = 140.84bhp..well pleased