K&n Induction Kit And Iressa Manifold

[Rally Slag 0]

heya, i own both a 205 and 309, 205 is of road and im using the 309 everyday, the exhaust manifold had 2 big cracks in it and the system is blowing, im getting a pug sport system, but a friend of mine has an iressa manifold he will sell me quite cheap. He bought it for a 1.9 8v 205 but i just wana no, will it fit my 1.9 8v 309, i know it will bolt to the head fine, but is the clearences between bulkhead ok or is it to short or to long compaired to original down pipe.

 

other thing is, if i get the exhaust i wana get a K&N induction kit, i fitted on to my 205 but its a non power steering model, my 309 has power steering, are the K&N kits the same for 205 and 309 with power steering, cause i know demon tweeks and auto 5 both list the 205 kit as with or without power steering but they dont for the 309. anyone got a pic of a K&N kit fitted to a 309 with PAS?

 

cheers for the help guys

[d-9 0]

The only difference between the pas and non pas K&Ns is the pas kit comes with a bracket to move the pas resivoir to where the afm normally sits, which you could make yourself fairly easily. 205kit will fit a 309 and vice versa.

 

The exhaust manifold *should* fit, thou i havent tried it myself. I know the magnex 4 branches are interchangeable between 205 and 309 so the iressa should fit. Do a search for iressa, i remember a thread saying they were crap.

[Rally Slag 0]

oh right, i was told they gave a 7% increase in power, sounded ok to me. OK so whats the best manifold to go for then?

[Rally Slag 0]

i did a search and this was the only topic i could find:

http://forum.205gtidrivers.com/index.php?s...opic=39152&st=0

graham said it was allright in there, no one said nothing bad about it. its a mild steel manifold so it wont crack, but if it does brake i can weld it back up, so i think im gona go with that one, plus it fits up to a standard size centre pipe wich is what im after

[pug_ham 244 3 Cars]

oh right, i was told they gave a 7% increase in power, sounded ok to me.

Who told you that? I doubt it will give a 7% increase on any engine.

 

graham said it was allright in there, no one said nothing bad about it. its a mild steel manifold so it wont crack, but if it does brake i can weld it back up, so i think im gona go with that one, plus it fits up to a standard size centre pipe wich is what im after

I think the only downside about it being mild steel is that it'll rust which the stainless ones won't.

 

I only know of one person that bought one (NickR) but he didn't keep his car long with it fitted & never got a back to back RR report to see if it did make any difference.

 

One thing though, afaik it might not mate up with the standard centre pipe from the three piece system, NickR cut down his two piece one & it just fitted.

 

Ask them what diameter the outlet is before you commit to buying it & I'll measure the Group N centre section to see if it will fit.

 

Graham.

[veloce200 3]

Who told you that? I doubt it will give a 7% increase on any engine.

 

i would agree on any genuine standard engine and exhaust in good condition.

 

Unusually a full group n system and iressa manifold to replace a very suspect genuine system yielded 20hp on a customers(friend - always difficult to know what to call them when they're both! - mates rates are good but not free!) car. This was discussed in a recent thread at length. the cause of the substantial increase (the root cause) was the fact the original exhaust had too much backpressure for the cam which had increased overlap.

 

i think this is why exhausts and filters have this "coooor big bore exhaust - bet that goes some ......" image as occasionally they do work when replacing some thing that's worse than it should be.

 

Sorry boring rant over.

[Rally Slag 0]

the bloke at auto5 told me it was 7%, this about march time when i was enquiting about one for my blue 205 before i blew the engine up.

 

well the reason i wana replace it is because the manifold is badly cracked and the centre pipe has a hole in it, id rather replace it all with a performance system to get a bit more out of the car. the guy at auto5 told me that the outlet diameter on the manifold is the same as standard bore size, and i read somewhere the diameter on the inlet of the group n centre pipe is the same as standard bore size, so it should all mate up and being a 309 i shouldnt have to cut it down at all