16v vs 20v turbo

[bluemaumau]

ok im going to start building a new engine.

but havent really found any diffinitive answers on what is easiest/best.

say you had a

16v with 8.9 pistons
and a
20v with 8.9 pistons same setups blah blah

will the 20v have that much more power?

because the way i see it setting up a 20v for turbo is alot harder

20v
more wiring(i think)
custom inlet
more tuning on ITBs

16v
stronger rods
factory inlet

wereas a 16v seems a little easier.

basically is it worth the $&#$% around to get the wank 20v turbo going?

cheers

[Bazda]

how much money do you have, thats the question.

its basically up to you to decide, you got the extra cash use the 20v.

the only extra thing you have to do is make a plenum, nothing changes in wiring either.

[Calvin]

If you wanna keep cost down, not much work to be done to your smallport GZE to get it running decent numbers.. and if your not spending to much on it itll last longer imo than the 20v..

Not really a technical opinion but a small insight on my view

[Bazda]

If you wanna keep cost down, not much work to be done to your smallport GZE to get it running decent numbers.. and if your not spending to much on it itll last longer imo than the 20v..

Not really a technical opinion but a small insight on my view

last longer than a 20v, how so?

[bluemaumau]

well theres no rush as im just gona keep building it as funds arrive. next semester is minimal .

im going to get a silvertop block because i want new pistons and silvertops are dirt cheap..

and gzes ans smallports go for rediculos money!

so im just deciding wether to run the 16v or 20v head.

is any two ppl on the board running the same boost and turbos? on 8.9 pistons in a 16v and 20v?

id rather it doesnt cost a fortune, naturally.

[Calvin]

If you wanna keep cost down, not much work to be done to your smallport GZE to get it running decent numbers.. and if your not spending to much on it itll last longer imo than the 20v..

Not really a technical opinion but a small insight on my view

last longer than a 20v, how so?

i always saw the GZE's to be stronger than the weight reducted 20vs (in standard form)

[Bazda]

20v head outflows the 16v head in standard form.
so you will always make more power than the 16v in standard form.

[ChaosAD]

16v gze bottem end with 20v head?

[Bazda]

16v gze bottem end with 20v head?

I think he is using the 20v bottom end with gze pistons, cheaper to do it that way i suppose.

[Mr Revhead]

a reminder....
cranks, bearings and rods are the same.....

so reliabilty will be the same between the two.

[Crucible]

a reminder....
cranks, bearings and rods are the same.....

so reliabilty will be the same between the two.

lol the 4a Guru!

[Mr Revhead]

im going to get that tattooed on my forehead.... i say it enough

[Crucible]

A guy in Auckland was building a 4agte with b/t head, how did that go???

I wonder what static comp ratio would be with blacktop head, 8.9 ze bott end, .8 gasket would give? quench??? custom pistons maybe better?
custom tapered plenum,short runners and single Tbody maybe???

[Mr Revhead]

now.... some one some where posted up the CCs of the heads......
must.... find.... it....

[TRD_ZERO]

A guy in Auckland was building a 4agte with b/t head, how did that go???

I wonder what static comp ratio would be with blacktop head, 8.9 ze bott end, .8 gasket would give? quench??? custom pistons maybe better?
custom tapered plenum,short runners and single Tbody maybe???

Yeah that is the exact setup im building i got all the parts just about to start putting it together, though im using the fatter rods. Id be relly interested what the static comp would be.

[flygt4]

If you wanna keep cost down, not much work to be done to your smallport GZE to get it running decent numbers.. and if your not spending to much on it itll last longer imo than the 20v..

Not really a technical opinion but a small insight on my view

ive got 2 years at over 20psi on a silvertop head 4agte

[Mr Revhead]

how mucn running in that 2 years?

[Bazda]

i've done over 1 year 13,000km, 27psi of boost, drag and circuit!!
20v ftw

[Calvin]

But you guys have built them to be handle that much power.. Im just saying if you were gonna keep it fairly standard my opinion sees the GZE to be stronger.

[Mr Revhead]

but standard they are exactly the same as 4age. other than the pistons

if you mean buy an engine slap on a turbo and not open it up. then yes 4agze would be better than a 4age.
but if your talking crank/rod strength etc. then they are the same.