the Official 16v thread

[evorobin]

4 branch Manifolds (Exatractors) make one hell of a difference!
Esp at the top end where a 16v tends to live most of it life.
My mates 2.0 16v GTI Egnineering jetta had a polished and ported standard cast manifold and he was told that will do him. After alot of playing about he later changed it for Ashley manifold and gained 10BHP @ wheels and broke the 190bhp @ flywheel.
He now fits them to all this 16vs builds (he has since built 2 mk1 16v's)

http://www.ashleyexhausts.co.uk/prod...cts_id=1411382



Anyone else fancy 16v header group purchase?

[WABIT]

im definetly in for that 100%

get in contact evorobin!!!!

dom

[Preen59]

No radial firing order???

[ausgolfer]

No radial firing order???

Do you mean tuned lenghts.
Never heard it put that way. But I imagine they're not just bunged together any lengths.

And YES WHEN AND HOW MUCH??

[roccodingo]

Thats the same as what I run, (fly, exhaust, timing) except mine has twin 45 Dellorto's, and I use the early ecu, supposed to have a more aggresive timing curve.


Ian

You need to bring that out of the woodwork Ian, where you hiding in perth man

[Preen59]

Do you mean tuned lenghts.
Never heard it put that way. But I imagine they're not just bunged together any lengths.

And YES WHEN AND HOW MUCH??

No, i mean radial collector. In the order of 1,3,4,2. One after the other..




Oh, and i need a short block 16v one to suit a Mk1..

[Valver.]

you will get that from a STD 1.8 KR valver,

155-160 for a std 2.0 would be ball park, i think Dom is on the right track

You'd be surprised if you put an old, unrebuilt 9a with KR or ABF cams on an engine dyno. Not only are the cams alone not worth a 20bhp+ increase (you don't get that in peak figures moving from PL/9a cams to Schrick 260s), an engine with a quarter of a million kms already won't make its standard output.

Fair enough a lot of the UK cars "have" blaring hp figures, but no one has used a proper engine dyno, and I'm sure if someone was to put a genuine, fresh 160/170/180hp engine in their car, they'd be very surprised.

A 172hp Clio has miles more grunt than some of the VW 16vs I've driven claiming similar outputs - same, too, with the 168hp B16A Honda, which has far less torque. I'd be more inclined to believe a 15 millio dollar factory dyno than "Vince @ Stealth" with regard to how much power my engine had

Not intended to be a blunt post, but if people are to learn from this thread, let's a least be a bit realistic about how much power is reasonably achievable on all but a massive budget

And even so, 16vs are nice to drive for their torque figures, which can be boosted up nicely in the mid-range with tuning... far more important in a road car with sensible gearing and speed limits.

[GoLfMan]

so basically are you saying a hot 8v can achieve nearly the same amount of HP for less dollars?

[Valver.]

so basically are you saying a hot 8v can achieve nearly the same amount of HP for less dollars?

A hot, well setup 1.8/2.0 8v could definitely challenge a higher mileage, standard 9a 16v IMO, yes It's all a bit subjective still, though!!

EDIT: But tuning the 8v to do so would cost more than a reasonable 16v swap...

[h100vw]

http://www.ashleyexhausts.co.uk/prod...cts_id=1411382



Anyone else fancy 16v header group purchase?

This isn't actually a manifold for any VW that I know of.

I have built a MK1 16V using one of their manifold, that was in 1996 and I don't think the price has gone up since then!!

They don't look like a Supersprint but do the job for less money.

Gavin