Topic: CJ 401 exhausts legality (Read 13100 times)

darknight · « **Reply #25 on:** July 01, 2010, 09:48:13 AM »

I prefer mine out the rear!!!

No really it's all down to taste, and as you say I think it's better for the noise, pipe sizes? Well the longer will deaden the sound a bit and have more back pressure, apart from that it's all about size when fitting

Bulldog67 · « **Reply #26 on:** July 01, 2010, 11:04:28 AM »

Cheers

Anyone using bombs then? any views on size for a 360/401?

Nosebolt · « **Reply #27 on:** July 01, 2010, 11:55:15 AM »

are your headers the inside frame or outside frame type? if outside you will have a hell of a job getting the tail pipe past the rear wheels

Bulldog67 · « **Reply #28 on:** July 01, 2010, 12:44:34 PM »

they be hedmans, so thats as far as i know, but the sloth says they are bastard to fit and will be easiest to take the wings off to put them on; does that give a clue?

Nosebolt · « **Reply #29 on:** July 01, 2010, 02:28:52 PM »

would guess they are outside the frame like the ones fitted to mine in which case you probably will have to exit in front of the rear wheels. which serves you right for buying them before me

Bulldog67 · « **Reply #30 on:** July 01, 2010, 02:46:10 PM »

ah bugger !!!

oh ell, gotta be a bit cheaper if usin less pipe, but im guessin that will make the cherrybomb a shorty to fit in there

wildwood · « **Reply #31 on:** July 01, 2010, 02:51:42 PM »

Saw a really nice CJ quadratrac 360 TH400 red on 31s at Bawtry....... (sorry no pics) seems the guy had had it for years and did a bit now and again.... was only doing blue routes and easy stuff as on All terrains....

However... the point of this was.......... his exhausts....... headers exiting in front of the footwells...(very neat) into stainless to stainless under rocker mufflers (motorbike surplus apparently) then into more stainless pipe..... and instead of a turn out..... he had a turn in.. to run between trans case armour and shackle hanger... and then to back ..........
Asked him about it and said he got fed up with the noise and could only hear half his engine...... as he did easy stuff..... damage not an issue.
just a thought.....

normalbloke · « **Reply #32 on:** July 01, 2010, 03:12:11 PM »

I have the Hedman headers on my 360 and they are inside the frame.A doddle to fit and remove, having just had to do it to change the flexplate.These then join into one behind the transfer case,and pass above the rear axle.It all sits above the skidplates.

Panic mechanic! · « **Reply #33 on:** July 01, 2010, 03:36:35 PM »

I got the outer frame headers and silencers all from headman

Bubba · « **Reply #34 on:** July 01, 2010, 05:07:31 PM »

i was wrong mine are 3 inch

most jeeps with headers exit at the sides for simplicety and the fact that they remain tucked up high wilst froading

Bulldog67 · « **Reply #35 on:** July 01, 2010, 05:22:52 PM »

Quote from: normalbloke on July 01, 2010, 03:12:11 PM

I have the Hedman headers on my 360 and they are inside the frame.A doddle to fit and remove, having just had to do it to change the flexplate.These then join into one behind the transfer case,and pass above the rear axle.It all sits above the skidplates.

they join into one due to choice or necessity?

normalbloke · « **Reply #36 on:** July 01, 2010, 05:27:22 PM »

Quote from: Bulldog67 on July 01, 2010, 05:22:52 PM

Quote from: normalbloke on July 01, 2010, 03:12:11 PM
I have the Hedman headers on my 360 and they are inside the frame.A doddle to fit and remove, having just had to do it to change the flexplate.These then join into one behind the transfer case,and pass above the rear axle.It all sits above the skidplates.

they join into one due to choice or necessity?

It was done by the original builder.Not by me.As far as I am concerned it is fine,it is out of the way,big enough to flow,and most importantly makes all the correct noises.

Panic mechanic! · « **Reply #37 on:** July 01, 2010, 05:27:54 PM »

you can run a split system but it will never idle as smoothly as a system that collects into 1 tailpipe If you look under most V8 engines cars especially US ones they run a crossover box that gives them that lovely even burble, with out it they tend to sound like 2 harleys strapped to the side of your car... yes I have heard bubba's sounding exactly like it this from a good distance away....

Bulldog67 · « **Reply #38 on:** July 01, 2010, 05:51:13 PM »

bollox

so altho i thort 2 tail pipes were essential, a new skool of thort is suggesting just the 1

how the bloody hell am i gonna work out which i prefer without wastin cash

Nosebolt · « **Reply #39 on:** July 01, 2010, 05:53:43 PM »

give me your unseable headers and go to kwikfit

Bulldog67 · « **Reply #40 on:** July 01, 2010, 05:58:27 PM »

hmmmm, u want my rover headers? they are yours mate, gratis

can i start a poll mid post? 2 or 1 tailpipes

Panic mechanic! · « **Reply #41 on:** July 01, 2010, 06:00:06 PM »

Quote from: Bulldog67 on July 01, 2010, 05:51:13 PM

bollox

so altho i thort 2 tail pipes were essential, a new skool of thort is suggesting just the 1

how the bloody hell am i gonna work out which i prefer without wastin cash

you can do either but at around 12mpg there won't be much difference bar the sound.

I like the " wake the fucking neighbours up" sound myself.

Bulldog67 · « **Reply #42 on:** July 01, 2010, 06:00:56 PM »

so 2 then?

Panic mechanic! · « **Reply #43 on:** July 01, 2010, 06:04:40 PM »

yup mounted under each side exiting just ahead of each rear wheel so when stuck in muddy water at cheapfest , you can drown the bastards laughing at ya to the side.

Bulldog67 · « **Reply #44 on:** July 01, 2010, 06:07:31 PM »

seems a plan

Bubba · « **Reply #45 on:** July 01, 2010, 06:37:54 PM »

normal has hedman hugger hedders yours are fenderwel a balance pipe wont afect tickover a bit thats just crap the main benifit of a balance pipes or two in to one is better cylinder purge on exhaust stroke and blended note

Bubba · « **Reply #46 on:** July 01, 2010, 06:39:10 PM »

o and huggers dont normaly work with auto cjs

Dave69 · « **Reply #47 on:** July 01, 2010, 06:53:12 PM »

remember the MOT is only valid at the time of test. as soon as you leave the station the paper realy doesn't mean much except it passed at said time on said day.

all mr plod or VOSA will do is give you a rectification notice or a vehicle asbo for you to put a more acceptable silencer on and get it re tested. The downside of this is that if your stopped again there is the chance you could get your vehicle impounded or crushed (this is worse case scenario).

common sense at the end of the day if you think it's too loud then it probably is. once pulled they will then check the rest of the jeep over for roadworthyness.

Bulldog67 · « **Reply #48 on:** July 01, 2010, 08:10:42 PM »

Quote from: V8 Bubba on July 01, 2010, 06:39:10 PM

o and huggers dont normaly work with auto cjs

mine are hedmans, they are the ones that u recommended djrr6 got, are u sayin they aint gonna work

Bubba · « **Reply #49 on:** July 01, 2010, 08:24:59 PM »

will you put your ears on fer fuck sake

A/ heddman headers fenderwell the type you have fit all amc v8s in a cj and exit at the sides they are the best and easyest to use on a modded cj

B/ heddman headers hugger [they hug the engine block] the type normal has are good but dificult to use and may need some special piping depending on gearbox thats why i say they dont normaly work with autos it can be done but its nowhere as easy plus you would want to consider extra auto cooling

Author Topic: CJ 401 exhausts legality (Read 13100 times)

darknight

Nosebolt

Nosebolt

normalbloke

Panic mechanic!

normalbloke

Panic mechanic!

Nosebolt

Panic mechanic!

Panic mechanic!