Another Soch VS Doch ?!

[boosted]

What about cracking head (sohc),i experienced this too much.
I think that isn't a problem with the dohc, which would be again a positive point for it..

[compressor]

What about cracking head (sohc),i experienced this too much.
I think that isn't a problem with the dohc, which would be again a positive point for it..

twincam all the way mate unless you want to be stuck in the 80's.
like the oldschool car was made in .................................................... new tech twincam allways wins




and now i am ready chriss :beer

[JD_Stazza_Brendan]

Same thing as VL turbos. Most dont bother going twin cam.
the Sohc VS Dohc argument for those guys gets out of hand sometimes,

[bigd]

What about cracking head (sohc),i experienced this too much.
I think that isn't a problem with the dohc, which would be again a positive point for it..

twincam all the way mate unless you want to be stuck in the 80's.
like the oldschool car was made in ....................................................

Ah.... I think you'll find the DOHC head WAS from the 80's - it's just been refined since it was introduced

[Barney]

Whatever blows your hair back!

[quest]

Several twincam street staz conversions have passed thru u.s. SQclub.
Mod for mod I'll still take the 2.6L sohc over it. G54 have simply set some highwater-marks, untouched by their 2L dohc counterparts.
Examples;
g54 street car with a 'small responsive turbo' @ 14psi gone 12.4.
g54 gone 12.8sec 1/4 using a 12A turbo + fuel-only ecu!
g54 oe cam, 6200rpm redline, old T04b turbo +75shot, gone 10.4s
Still haven't seen any 4g63 dohc street staz match that, same mods.

Do the math, I bet it surprises you which emerges the victor.
A well matched combination creates a standout, not dohc.

I've seen no 2L sohc staz pushed by a t4 compressor @30+ psi, with a proven cam, etc., so how can one deem its potential inadequate ?
A handful seem to have done reasonably well with the 2L sohc tho... not to mention 2.4L sohc possibilities, as 4g64b has.

Dohc does not automatically award anybody a faster car. Nonsense.
Same way folks "think" GT ballbearing technology 'rules'. It doesn't.

We have LOTS of 2 valve motors on this side of the world that will eat dohc, and at a fraction of the cost. Fact. 80s ain't a bad place to be :)

[JD_Stazza_Brendan]

I've seen no 2L sohc staz pushed by a t4 compressor @30+ psi, with a proven cam, etc., so how can one deem its potential inadequate ?

Ive seen 2 in person, driven One, not 30+ psi, but 20+, and using a better turbo then T4. Convinced me to stay SOHC

[cheaterparts]

:1
Mod for mod I'll still take the 2.6L sohc over it. G54 have simply set some highwater-marks, untouched by their 2L dohc counterparts.

Do the math, I bet it surprises you which emerges the victor.
A well matched combination creates a standout, not dohc.

power x cost the 2.6 gets my vote as well although there are few on this site that would agree
one local guy running a 2.6 in a galant with very basic mods
stock bottom end with flat top pistons ( about 9:1 comp )
stock magna head ( M6 casting )
double valve springs and a 31/79 cam
stock sigma turbo manifold and turbo ( old school )
and a magna efi
136 Kw ( 182 Hp ) atw with 6 pound at 5800 rpm and with that comp its so streetable
it will be good to see what that does when the boost is lifted to 10 -12 psi

by the way I'm not anti DOHC I plan to do a turbo 1753 cc ( destroked 4G62 ) with a DOHC to run IPRA rules - under 3 Lt class
by the way Ash we do have a 2 - 3 Lt class here in Vic and Rx7s rule the class
1753 x 1.7 = 2.98 Lt and slide it in the sigma that should push a 990 Kg car quite well and reduce the weight of the car a bit

[quest]

?

Ive seen 2 in person, driven One, not 30+ psi, but 20+, and using a better turbo then T4. Convinced me to stay SOHC

difference between 20+psi and 30s, can change 'beauty' to a 'beast'.

a T04 compressor wound out, will cover an hp goal imaginable for a steet/strip staz. Depending on trim, it can move enough air to land anywhere in the high 300s to shy of 600hp. I dunno how much of a "better turbo" would exist.

Not anti-twin here either. Mitsu 4s r my favourite. I have a sample of each; 2, 2.4, 2.6L
To be honest, I actually prefer the smoothness and simplicity of the 2L sohc. Curious about its limits tho, so I'll try & find it.... then the 2.4 will pick up from there.

[redzone]

^^well if DD phil ever gets around to it, i'll be finding the limits of a sohc 4G63

[Barney]

Like I said earlier, whatever blows your hair back. I for 1 wont go back to SOHC.

Ash

[Barney]

I've seen no 2L sohc staz pushed by a t4 compressor @30+ psi, with a proven cam, etc., so how can one deem its potential inadequate ?

Thats because it was done in the 80's and things have moved on from there!

[Junkers]

I'm following the SOHC path not because I think it can produce more power than a DOHC, because obviously it can't. But I am choosing to go with it because I want my Starion to be a Starion and bang for buck you can get more out of a SOHC engine if your budget is below 5-6k.

[JD_Stazza_Brendan]

VS


Yes im bored and have a weird sense of humor

[redzone]

I'm following the SOHC path not because I think it can produce more power than a DOHC, because obviously it can't. But I am choosing to go with it because I want my Starion to be a Starion and bang for buck you can get more out of a SOHC engine if your budget is below 5-6k.

^^^ QFT. the combination in the orange car cost me about $4000 all up, and got me flat 13's. thats excluding labour costs of course!