Will these H22A headers bolt onto F20B?

[elijahn]

cannot find any after market headers for my F20B
Prelude Stainless Steel Header H22A 4->2->1 for sale - TradeMe.co.nz - New Zealand

these cheap ones? not gonna do much from existing factory headers?
read that h22a will fit just making sure.
will these bolt on to my F20B block? can i bolt it on my own?

[VTAKYO]

They will fit the head, but the mounting brackets for the back of the block etc won't. Which doesn't matter as you don't need them. Depending on the design you may also need to notch a couple of bits on the block...

[elijahn]

what do ya mean by notch?

[Demon]

the phrase angle grinder comes to mind

[CoupeTurbo]

yes they will. but your vtec will be all out of whack and wont come on as low as it used to.

[elijahn]

thanks CoupeTurbo! never ever have read anything like headers can throw out the timing of the vtec. Might just leave it stock then.

[SwiftSez]

Originally Posted by CoupeTurbo

yes they will. but your vtec will be all out of whack and wont come on as low as it used to.

huh?

Care to explain how? I didn't realise the lobe change point was dynamic in the F series.

[Demon]

Originally Posted by SwiftSez

huh?

Care to explain how? I didn't realise the lobe change point was dynamic in the F series.

i dont quite see how that will work either? how can a set of headers change a mechanical action??

[CoupeTurbo]

it was a joke relating to his other thread some ppl are so thick.

[Demon]

Originally Posted by CoupeTurbo

it was a joke relating to his other thread some ppl are so thick.

ah right, so we are thick becuase u made a joke relating to something he said in a completely different thread?? and therefor we didnt get the joke... ah it all makes sence now! we are SOOOOOOOOOO thick.. i bow to thee... o superior one....

[CoupeTurbo]

apology accepted fck knuckle

[nva2nd]

Originally Posted by CoupeTurbo

apology accepted fck knuckle

omfg my day has been nothing but shit! You Sir Just got a laugh out me! Probs you that was 10/10 im almost crying hahahaha.

[DURTYEF3]

Originally Posted by CoupeTurbo

apology accepted fck knuckle

bahahah havnt heard fck knuckle in aaaaaaaaaaaaagesss..

[Matty]

Down, kiddies.

[americ_ian]

lol coupeturbo:1 demon: -3 now

elijha.. ur best bet is that they will fit, they might gain a lilttle over stock cast manifold

if they dont fit a lil modding maybe required.. as with most cheapo trademe parts

[MyH22A]

Originally Posted by elijahn

cannot find any after market headers for my F20B
Prelude Stainless Steel Header H22A 4->2->1 for sale - TradeMe.co.nz - New Zealand

these cheap ones? not gonna do much from existing factory headers?
read that h22a will fit just making sure.
will these bolt on to my F20B block? can i bolt it on my own?

They will be fine for a small gain in HP, but nothing special over say these ones JUN H22A Exhaust Manifold for sale - TradeMe.co.nz - New Zealand hence the $1295 price tag, those one's your looking at are a cheap alternative over seriously tuned & designed headers.

So if your not really that serious about modifying your car then those headers your looking at would be fine really for an f20b engine, I'd say you could bolt them on youself with the right tool's no worrie's, just take note of what a few people have said already about the block etc, eze peze tho.

I want the JUN 1's they are proven to be the 1 of the best if not the best header you can get for an h22, ( Super Lemon Prelude ) to bad they are'nt under a grand tho

[VTAKYO]

Megan Racing apparently aren't that bad, I am not sure about their headers though - but some of their other stuff isn't rated too badly.... however those headers still have a 2" collector which is pretty shithouse.

[elijahn]

2" is shit, okay. So i've already got a twin loop muffler sticking out my ass, if i get a new exhaust i should match this to the collector diameter of the header right? 2.5" maybe?

[elijahn]

oh and for $1200 for the JUN i may aswell get the Mugen extractors for $1420?

[MyH22A]

Originally Posted by elijahn

2" is shit, okay. So i've already got a twin loop muffler sticking out my ass, if i get a new exhaust i should match this to the collector diameter of the header right? 2.5" maybe?

Yeah definatly although i think maybe 2.25'' could be better with the f20b, more mid range power over top end with 2.5'' and of course im sure you know you wont be maximizing the HP without your Intake done already right? the old more air in more air out scenario.

Also make sure you dissconnect the battery for 10 - 20 min's aswell after the install is done then go thrash it with some 98 octane for awhile or so and Wahhlaaa more Vtec'n power and Torque.

Changing your plug's too will help, if you havent done em in a while because all of a sudden there's more air n fuel to burn so a better spark should give you the best result's.

[elijahn]

Thanks MyH22A, yeah i've ripped out the factory air box and in there sits a new pipe and air filter now. because i've already got the twin loop, it is easy to get just the 2.25 exhaust without muffler? any suggestions on where i can find a 2.25 exhaust to buy? and how much am i looking at without a muffler?

Will replace spark plugs this Sat too.

[Demon]

go into your local exhaust shop and have a chat to them about what will be best for your car

[MyH22A]

go into your local exhaust shop and have a chat to them about what will be best for your car

What he said, otherwise there maybe someone on NZH in Auck's that might beable to point you in the right direction.

I'd Estimate round 350 - 500 without muffler for stainless steel and 200 - 300 for just mild steel (make sure its coated or dipped as they say with anti rust stuff).