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Classic Mini DIY - Exhaust Replacement - RC40 vs Maniflow
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- čas přidán 18. 02. 2017
- Maniflow Exhaust used in this video:
www.7ENT.com/pr...
Old RC40 Exhaust:
www.7ENT.com/pr...
Mounting System:
www.7ENT.com/pr...
My Favorite Kind of Clamp:
www.7ENT.com/pr...
Sponsor - www.7ent.com
Patreon Link - / classicminidiy
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Facebook - / classicminidiy
Music by: David Cutter Music - www.davidcutter... Thanks for watching Classic Mini DIY! Please note Classic Mini DIY assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Classic Mini DIY recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, expensive electronics, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of Classic Mini DIY, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not Classic Mini DIY. Only attempt your own repairs if you can accept personal responsibility for the results, whether they are good or bad.
Years ago I also replaced my old RC40 with this Maniflow exhaust!
It's one of the best exhaust you can get for the classic Mini in terms of performance and noise level! I installed the clamps in the other direction so there is more room under the car! ;)
Yeah I'm not wild about those u-clamps. If I could use only band clamps I would be much happier. 😅
Thanks for posting these DIYs. Look forward to the next episode.
Happy to help! More coming soon. :-)
So glad I found your DIY threads... many thanks!! About to start my first restoration....
Happy you found the channel. Good luck and let me know if you need help. :-)
perfect timing! I was just about to order a new exhaust system for my SPI.
Totally planned that. 😏
AgentHubcap Me too! I've just been pricing a couple of different Stage 1 kits and didn't really know the difference between exhaust systems.
Thanks Cole. I will be buying my first Mini very soon and this is one of the first thing i plan to upgrade.
Happy to help! Enjoy the "new" mini. :-)
Here is a tip, I'm not recommending anyone to follow, but it's worked for me over decades on several cars.
I've owned Minis since about 1968, my first saloon was (and is) a 1962 Basic Mini (was 848 cc). This was soon upgraded to MG 1100 engine spec (12G295 head 3.44 diff. etc. I was fed up with exhaust boxes rotting out from the inside. Was replacing them regularly.
On old engineer told me to put a cup of cooking oil in the new box when fitting it. I did, the box with the oil, must be 30 years or more ago, box still fine.
I would not do this if the car is due a test (MOT in the UK), it might fail on emissions! until the excess oil is ejected.
I have a mini 61 morris 850 with an mg 1100 engine that was swapped in back in the 70s. I bought the car out of an old garage where it was sitting since the 80s. I was wondering how is the power and feel with the mg 1100 swap. As i have never driven this car i was wondering if it felt comparable to a stock 1275 or so? Is the 3.44 gearing decent? Any and all input regarding the mg 1100 engine in a mk1 mini is very appreciated as i cant find anyone else who has done this. My engine code is a 10gr just to confirm it is an mg 1100. Thank you in advance
Just to add i am in the process of building the car as we speak i ran the engine off of a gas can for a few minutes and it idled like i just parked it the day before so it is a smooth running engine. The car should be ready for a yard drive by the end of the month.
Great video!
I am looking to replace the exhaust. Does your car has catalyst? Can I fit the Maniflow exhaust, same as yours, to my car if it has a catalyst?
Thank you.
I think that you can't really compare the noise level between the two exhaust systems unless they were both new. RC40 is a very nice exhaust system for the money you are paying, but Maniflow is a GRATE one and its worth paying the difference in price 100%. The time will tell. Very nice video!
True the RC40 I had was definitely very worn out and was not exactly the same as a new one after a fresh install. Having owned it since it was new I can say I like the maniflow exhaust note much more but the video comparison is the best I could do.
You can also install additional deadening materials inside your cabin to reduced outside noise.
Very well made, informative videos, great job!!!
Thank you!
Awesome video, I replaced my mini's verto clutch slave cylinder this weekend you should really put up a video about it!
I have been wanting to do one of those videos but haven't had a car that needed it yet. Knock on wood.
Hi and thank you for all the time you spent recording this all.
I have a MPI Mini with a catalyst on my exhaust line. Is there some specific modification due to this catalyst?
The down pipe on my 1300 chic seems very low, how can i put it nearest to the car to avoid damages on it?
Thx
Your guides are awesome, thanks a bunch!
Glad you like them. Thanks!!
Classic Mini DIY I have no experience working on cars whatsoever, i bought my first mini when i was 17 and my second at 19 (im 20 now) and i'm going to restore the first one!! But the second one had a bad head gasket so with your help i replaced the gasket and also set the thingy clearances right
Im happy I could help out!! Good luck with the restoration. It is both very fun and SUPER frustrating at times. If you ever need any help drop me an email minis@ccmu.us
Hi man! Recently started watching your videos and they are awesome! keep it up! one question: Would you recommend using the exhaust sealant when putting on a new exhaust? or should the new pipes create a pretty good seal?
Personally moving forward I am always going to add it just for that piece of mind. However its probably not required.
Thanks 🌹
I will took your advice, maniflow exhaust ordered (mini spares stage one kit)
Awesome you wont be sorry! :-)
good video, i am about to fit the centre exit twin box Maniflow on my Innocenti. Subscribed and hungry for more !
Thank you! I am going to be a new header install soon which sounds like something you may be interested ina s well.
done that bit already on my rebuild, but thanks for the tip, i will be watching !
I'm adding a header to my 1275cc. What about using something simple like a 2" pipe and a Cherry Bomb muffler, straight out the back?
Really enjoy this site and the videos. When I have talked with 7ent, I tell them how much appreciate their support.
Thank you so much for saying that to them Barry. :-) I am sure you could do a straight pipe out the back. Even with a straight pipe it might not be unbearably loud actually. The mini isn't THAT loud. Haha
love the videos mate, watching from Edinburgh in Scotland. you should do a video on changing the fuel tank :)
Not a bad idea. I have some friends that might need a new tank soon. Will try to convince them to let me video the replacement on their car.
awesome :) im just in the house from working on my spi sidewalk, got her running getting MOT tomorrow just in time for the good weather :)
Congrats hope the MOT goes well!!
I don't quite get how the hanger clamps work. Do they hold the exhaust up because you tighten the screws until it's pushing against the floor panel or something. And is there not a bracket to screw into the floor panel to hold up the exhaust. Sorry I'm an absolute beginner and have no clue.
No worries! So there are kind of like hook brackets that are mounted to the subframe on the mini with a piece of rubber in between. The u-clamp fits over the hook and then the bottom piece with the two screws pulls the exhaust up to the hook and hold it tightly up there. Hope that helps explain it a bit more.
Im currently doing the reasearch about my new exhaust system. My car has a cat, I am unsure If I should delete it. Also running a HIFF44, not injection. Nice video!
Whether you run a CAT will be dependent on where you live and the local laws. Some places require them if they were on the car originally. Maniflow sells kits that suit cars with CAT's as well. So you should be able to find something to suit either way. :-)
nice vid! i have a old austin mini van. can the maniflow twin box be used on a van?
They do make long wheelbase versions that should work on the Van.
www.7ent.com/products/exhaust-system-maniflow-long-wheelbase-c-ara339.html
Thanks for your guides. These are awesome. Would you consider doing a video about installing extra gauges in a mini such as voltmeter, ammeter, water temp/pressure, oil temp/pressure, air/fuel ratio... that'd be really helpful. Thanks again for the awesome work.
Sure I have been wanting to install an Air/Fuel Ratio gauge on my car and just haven't bit the bullet and bought it. Once I do I will certainly make a video about it.
Thanks! That'll be awesome, as the rest of your videos.
Great video. Thanks :) Just wondering, what happens to the stickers on the exhaust over time? Is it worth removing them?
They get baked on and make lots of smellz. I tried removing beforehand but I couldn't get it off.
Was the free-flow on the stock mini?
I just bought a 1980 998cc mini and I was thinking of changing the whole standard exhaust (from the block to the tail pipe; so header, mid pipe, muffler... everything) to a center exist system. What would you recommend for my car since the engine is completely stock. I just want it to be loud and to sound like a little rally car (but to still be legal on the road). I don't drive my car for long periods of time, so I don't really mind if it's a bit "drony". I just want a high quality system that will suit my stock engine and since it's the only mod i'll put on my car this year, the budget is substantial. Can you help me pick the right exhaust system for my car? Thank you
Given all those guidelines I would probably go down the Maniflow route (stainless if you are looking to drop some coin). Stainless won't rust like a normal steel exhaust would. You could pick up one with just a single box as well. This will make it loud but not obnoxious. The two products linked below this text is a little overkill but would be great and would last a really long time.
Manifold:
www.7ent.com/products/lcb-header-kit-stainless-sie0420.html?af=cmdiy1959
Exhaust System:
usa.minisport.com/cls005bss-maniflow-side-exit-single-box-system-in-stainless-steel-mellow-sound-to-suit-tuned-1275cc-to-1300-cc-engines.html
Given all those guidelines I would probably go down the Maniflow route (stainless if you are looking to drop some coin). Stainless won't rust like a normal steel exhaust would. You could pick up one with just a single box as well. This will make it loud but not obnoxious. The two products linked below this text is a little overkill but would be great and would last a really long time.
Manifold:
www.7ent.com/products/lcb-header-kit-stainless-sie0420.html?af=cmdiy1959
Exhaust System:
usa.minisport.com/cls005bss-maniflow-side-exit-single-box-system-in-stainless-steel-mellow-sound-to-suit-tuned-1275cc-to-1300-cc-engines.html
Given all those guidelines I would probably go down the Maniflow route (stainless if you are looking to drop some coin). Stainless won't rust like a normal steel exhaust would. You could pick up one with just a single box as well. This will make it loud but not obnoxious. The two products linked below this text is a little overkill but would be great and would last a really long time.
Manifold:
www.7ent.com/products/lcb-header-kit-stainless-sie0420.html?af=cmdiy1959
Exhaust System:
usa.minisport.com/cls005bss-maniflow-side-exit-single-box-system-in-stainless-steel-mellow-sound-to-suit-tuned-1275cc-to-1300-cc-engines.html
Thanks a lot man.
To fit this system on my car, will i need new mounts to old it in place or can I use the ones under my car?
Also, what kind of seal do I need to fit the header to the exhaust port?
Thanks again
Vizard says the RC40 was the best performance mini pipe and quiet too boot . A stainless steel RC40 would be ideal . Maybe Maniflow have improved on the RC40 since ?
When are you doing a chat with HRE again .... I am missing the Irish wizard !
will you do piece on repairing the front suspension,ball joints and all the other parts of the front wheel.i have a 67 998 cooper with 7 in. discs. great job on the videos
Sure I will put on my shortlist of videos to make. :-)
Love your videos, quick question im looking at replacing my positive battery lead as its pretty tired, what gauge of wire would you use?
Glad you enjoy them! I have just bought the one seven ent sells in the past:
www.7ent.com/products/battery-cable-front-to-rear-yta10037.html
Great channel! I just got my first Mini in June and I'm learning a whole lot from your videos. Thanks for that.
Question: did you have to make any changes to the carb or ignition setup after installing the Maniflow exhaust? I put a new Maniflow 1.75in exhaust on mine (1978 1330) and now it won't idle below 2000rpm. Any thoughts?
Hey Thomas! Congrats on your first mini! The carb and ignition didnt need any changes when I swapped out this exhaust system though depending on how restrictive your previous setup was there is a small chance you may need to adjust your fueling. In general though its very rare, when you swapped in the new exhaust, did you change the intake/exhaust manifold gasket? They are not reusable, so if you kept it you probably have a vacuum leak.
@@classicminidiyI installed a Maniflow exhaust and downpipe... I didn't remove the intake or exhaust manifold from the head so I wouldn't think their gaskets are the problem. That said I do suspect I created an intake leak somewhere. Thanks for your help. And great channel!
How do you fit a free flow to an injection mini?
I own a 998 cooper, was considering the free flow maniflow with maniflow mid & rear section.
was just wondering how the power difference was between your old RC40 and the maniflow
Honestly I have not noticed an ounce of power difference. My RC40 and my Maniflow are the same size pipe and were both twin boxes. I would have loved more power though. :-D
I think you accidentally put the wrong link to the Mounting System, it's the link for the RC40 exhaust.
I bought a Maniflow stage 2 Manifold with a Maniflow 1 7/8 single box centre exhaust. How do i mount the exhaust? I've read some forums which say i have to drill holes in the subframe and mount it there with screws.
That's correct. The rear mount generally has to be drilled and mounted. The RC40 brackets actually work really well for most of the prefab mini exhausts on the market. 👍🏼
this might be a dumb question but if I wanted to replace my stock manifold with LCB, do I need to remove the engine to get access? (and is it worth replacing the manifold?)
Not a dumb question! Removing the stock manifold can be done with the engine in place. It can be a bit fiddly to get the old out and the new in but its totally possible. :-) You will need to drop the full rear section of the exhaust which is just a matter of unbolting the hangers.
Hi Cole, I just got my mini back from the shop that was rebuilding it. They put on the RC40 on which is mind numbingly loud inside the car. I came across your video here and was wondering how big a difference changing your exhaust made in r noise level in the cabin. Was it worth the effort and the cost?
This is the way I found the RC40 on my car as well. Was a solid exhaust but way too loud and drony for me. I am curious if you have a single or dual muffler option. The single muffler options are always gonna be a good bit louder.
I have a no box system
Too loud for me! :-) Although they do sound cool driving past when they are straight pipes.
Hi! Do you use the C-AHT98 to clamp the manifold to the gearbox for extra support? I've been using my freeflow manifold without it and it seems to work anyway (for a year so far)
Yes I definitely do. It helps prevent clunking and clanking down there. It will work without it but helps keep things in place when the motor shifts during regular driving.
What cam are you running?
Can you do a video on how to replace/bleed clutch fluid please?
I did a video on bleeding the brakes actually. The process is virtually identical except you are bleeding from the slave cylinder on the clutch housing. When I finish my current project I will do a video for you. :-)
Meanwhile I am running play mini stainless, no mid box, straight cut box, straight cut drops....split 45's and a 1380
I am a man though 😉
Hi from New Zealand! I’m hopefully buying my first car, a mk1 mini, very soon. I love those wheel arches, what are they? Thanks.
Hey Jackson! These wheel arches are called “Group 2” arches. (Link below)They have various other sizes as well depending on how big you want them “Group 5”, “Group 6”, etc.
www.7ent.com/products/fender-flare-kit-group-2-sbo0001.html?af=cmdiy1959
Dose a one boxed exauste sound sportier?
Yes the ones I have heard imo are sportier. In addition. They are just generally louder. 🙂
I'm replacing my old rc40 with the maniflow twin box 1 7/8 side exit. My innocenti has a free flow exhaust manifold. Where do you get or send the link for the small piece tube that connects the maniflow to the free flow exhaust? Thanks.
Sure thing! Its this adapter:
cmdiy.co/2DzGsPy
Thank you. I appreciate it.
Great videos! I have a 1991 Mini City. I'm looking to get an aftermarket exhaust but don't have a garage or anything to fit it in. It has the original exhaust and manifold. I've seen a thing called a magic down pipe, or a big bore down pipe that says you need it if you don't want to change to an LCB manifold. Can you explain?? What do i need?
Just dicovered your channel and it's just what the mini community needs!
Thanks :)
I've never heard of a magic downpipe personally. If you want to keep a 3 to 1(3 pipes into 1 pipe) header and still use a maniflow exhaust you will need the connector between the header and the exhaust.
Linky: www.7ent.com/products/pipe-adapter-freeflow-header-to-maniflow-sysyem-l71.html
This replaces the 3 to 2 headers(3 pipes down to 2) piece you can see linked below. Hope this helps
Linky 2: www.7ent.com/products/lcb-collector-standard-bore-sie0051.html
Thank you!!
stainless exhaust ?
Man I wish!
Where did you order your exhaust?
This video is pretty old but I ordered it all from Minispares at the time.
@@classicminidiy Thsnk you
Do you know what the best diameter exhaust would be for a mildly tuned 998?
Rhys Lister sorry to jump in here, 1.75 inch diameter is optimum for a 998, any larger and you will start losing power or at least not gain as much. Either the Rc40 or maniflow are good choices.
👍🏼👍🏼
What John said. 😏
Meanwhile, I'm in the process of installing a straight through exhaust with the DTM style centre exit along with straight cut gears for the sole reason that is the complete opposite of yours :P :P
Hahaha different strokes for different folks! That sounds badass though.
"Exhausting" lol
:-D