s2 421 manifolds

Author
Discussion

peter2704

Original Poster:

237 posts

215 months

Saturday 9th October 2010
quotequote all
ok whats the best and whats the cheapest ,also best place secondhand?

peter2704

Original Poster:

237 posts

215 months

Saturday 9th October 2010
quotequote all
oh i forgot ,its for a k series s2

volores

116 posts

204 months

Sunday 10th October 2010
quotequote all
Hi

Sounds like we are after the same thing.......after toying with the idea of going down the honda route, I have decided to tweak the k series with some Cams, head work etc etc.

I have a post on Seloc requesting recommendations on 421 Manifolds - general consensus seems to be that they are all pretty much do the same things and its down to personal preference and how much you want to spend.

quite a few people have got Janspeed and Piper and are happy with them, some small issues with Piper where the pipes are touching and causing it to "tizz" but seems a limited issue which Piper are looking into.

I was going to go for a Larini manifold as have Club sport silencer already but too be honest I think i am going to go for the Elise Parts Big Bore manifold - not cheap but looks really good quality and was recommended by Dave Andrews (DVA Power) to make the most of the heads/cams etc.

peter2704

Original Poster:

237 posts

215 months

Sunday 10th October 2010
quotequote all
Hi,
yes done some digging myself,i thought of just dropping in a vvc, and if you can get a cheap complete one is a nice 143/160 bhp,a biggish job though.So im back to cams and exhaust, i thought on getting a piper but must confess the ebd /eliseparts looks class and easier to fit with it being in sections,you say its a big bore which for just cams and exhaust might be too big for my mods ,i think the smaller 35mm bores are good for 170bhp which until i take the head off will do me.i used to have a piper on my s1 and it was not brill on the flange to head and it blew so i had to mod it a bit to get it to seal.

volores

116 posts

204 months

Sunday 10th October 2010
quotequote all
Hi

did wonder about that re big bore versus Small bore - but it came recommended from DVA so I guess he knows what hes talking about ;-)

Will double check though if not I'll prob go for the Janspeed small bore.

Had a chat with both DVA and Sabreheads re the work for mine - think i;m looking at getting close to 170 with head/cams/verniers/TF160 pistons and emerald ECU - toyed with the idea of going for the Jenvery TBs to get a little bit more but dont really want to intrude or make alterations to the boot space.

Be interested to see which route you go

peter2704

Original Poster:

237 posts

215 months

Sunday 10th October 2010
quotequote all
At the moment with 2 small children,the route i hope to take is this,cams/verniers/421 manifold/sports exhaust/induction kit,this i hope will make it a bit more fruity to drive(130/40 bhp),then if head gasket goes ill get the head ported/flowed and transfer the cams(150/60bhp) which is about max for standard ecu/ engine.

Mr_C

2,445 posts

236 months

Monday 11th October 2010
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Smaller bore will be better upto about 170ish bhp I think...

Saying that, I'd do whatever DVA says is best.