197 Matched Inlet Manifolds

[kevo66]

i have another 197 booked in for this work, which will hopefully kill the speculation. If you want booking in please email me broster@jam-sport.co.uk this is easier than pm on here as my inbox fills quickly and sometimes pm's get over looked.

mark

I will mate, very good of you that!! As said, if you can show me these gains I'll put it right on here, and be pretty happy in the process :approve::approve:

 

[broster@JAM-Sport]

our aim is to please.

mark

 

[kevo66]

our aim is to please.

mark

My mrs tells me that!!

 

[kevo66]

So Jimbo, how did you get on at RS Tuning mate?? What did it run??

 

[jimbo666]

ermm... 'interesting' put it that way!

 

[kevo66]

And..??

 

[kevo66]

Jimbo I want to know these results!!

Ill find out off Paul anyway so just posting "interesting" wont help! PM if you need to keep it secret!

 

[DEMONKNIGHT666]

Hi Guys,

I've booked my R27 in @ Jam for the inlet work on Thursday, my car is not mapped and has a Milltek exhaust.

and..................we will see
Demon

 

[theduck]

so what were Jimbos results at RS Tuning?

 

[DEMONKNIGHT666]

Still waiting by the looks of it.

 

[Gingerbeanwill]

Right noob alert here!! I know this is an old thread but I don't understand what people mean by matching the inlets, I've only ever driven a 1983 mini before this year so this is my first "modern" car is it just the casting edges that get machined a away to give a better airflow? I am good with cars and all that just don't understand this thread? Thanks will

 

[R3k1355]

It's port matching the lower inlet manifold to the cylinder head.

 

[Gingerbeanwill]

Oh that's excellent I get it right away great pictures :smile: I can see how there is a performance gain better airflow etc! I think I better contact jamsport about this! Thanks alot :smile:

 

[Gus]

ermm... 'interesting' put it that way!

Just read this thread... cant believe the gains were never posted..... so 6 years later Jimbo .... post the results of the gains....

 

[TimR26]

To complete the thread... http://www.cliosport.net/posts/7185538/

 

[R3k1355]

Oh that's excellent I get it right away great pictures :smile: I can see how there is a performance gain better airflow etc! I think I better contact jamsport about this! Thanks alot :smile:

Those pictures are of the 172 manifold tho, and show the worse case scanario.
Casting was improved in the RS manifold fitted to later 172's and 182's.

 

[Gingerbeanwill]

Ohh cool, yeah mine fits into the later category I think haha, certainly worth looking at now I know roughly what it involves thanks for the info and replies

 

[R3k1355]

MS Custom Engineering are doing 172/182 manifolds ported and painted for about 200 quid.
They do polishing bits as well so you could push the boat out and bling up the engine.

172/182 manifold:

 

[Diagro]

What sorta gains are there on those ported inlets for the 172? Don't you need to port the head too for the best results?

 

[R3k1355]

What sorta gains are there on those ported inlets for the 172? Don't you need to port the head too for the best results?

Totally depends on if you have the later RS stamped lower-manifold, it's better cast so offers little in the way of gains.
The earlier manifolds show some modest improvements.

I'm sure you would see better gains with head work, but the cost of doing that Vs slapping on some new manifolds is vastly different.