Exhaust manifold v-clamp low mount

[berto200sx]

Hi guys!,

I would know if anyone know where i can buy exhaust manifold for a nissan s14a with sr20det for a low mount with v-clamp.
I would like to install turbo g25-550 with low mount exhaust manifold ( to look as stock/oem as possible ) with nismo 740 injetors and some 264 camshafts.

thanks!

[Actual_Ben_Taylor]

Why not just get it with a T25 housing?

[Galant_X]

The T25 housing are so bad for these turbos. Pairing a well flowing compressor with a super restrictive exhaust.
T4 or V-band are the only usable if u want some decent numbers out of the turbo.

Why not just get it with a T25 housing?

I used a OEM manifold and just welde on a T4 Flange for a project i am working on now. Works really well, and you get the durability of the OEM manifold.

[Actual_Ben_Taylor]

Double post

[Actual_Ben_Taylor]

Do Hypertune not do a manifold?

Also found AEworks on instagram

Or APW would probably make one for you

[berto200sx]

The thing if i can eliminate the oem gasket with the v-clamp i preffer that option and forget to take a look if its worn o cracked o leaking.

Anybody using the garret g25-550 aorund here?

[berto200sx]

Do Hypertune not do a manifold?

Also found AEworks on instagram

Or APW would probably make one for you

Thanks! i take a look of these information!!

[mattvaughan180]

Speak to Andy at Apw exhausts


Sent from my iPhone using Tapatalk

[ANDY black s13]

the cast manifold don't flow well for performance, the unequal runners design works ok on a stock or near stock engine,
No1 runner goes very small ID as it meets the collector then makes a sharp 90 degree turn,it creates a hot spot it is so restrictive
and the manifold can crack in that area and/or the divider will crack (and potential for bits to drop into the turbo)

same as others mentioned I would look at tubular manifolds in an unequal length runner designs to lower spool time & keep response
, if you go with a V band it will need a support brace so the turbo is not hanging on the V band or it will open up the v band come loose and leak

the set up in last pic looks good and not saying it wont work,it probably makes a good responsive low lag fast road set up
but if want big numbers the stock manifold will hold it back and loose top end power as it can't flow enough exhaust gases

[Galant_X]

the cast manifold don't flow well for performance, the unequal runners design works ok on a stock or near stock engine,
No1 runner goes very small ID as it meets the collector then makes a sharp 90 degree turn,it creates a hot spot it is so restrictive
and the manifold can crack in that area and/or the divider will crack (and potential for bits to drop into the turbo)

same as others mentioned I would look at tubular manifolds in an unequal length runner designs to lower spool time & keep response
, if you go with a V band it will need a support brace so the turbo is not hanging on the V band or it will open up the v band come loose and leak.


the set up in last pic looks good and not saying it wont work,it probably makes a good responsive low lag fast road set up
but if want big numbers the stock manifold will hold it back and loose top end power as it can't flow enough exhaust gases

Thats simply not true. The stock manifold flows WAY more then most think.
Welding a v-band to a stock manifold are totally fine for a G25-550 turbo. It was put down 470whp(550ish hp) on a totally stock manifold some time ago.
Some mild porting and you are able to remove quite some material from the narrowest spots of the manifold.
The OEM manifolds do crack in the the divider area, but i have still to see bits actually come loose and damage the turbo.
Keep it OEM and maintain durability.

[screaminsilvia1]

berto200sx- did you get the manifold sorted for G25-550 turbo- if so which one or was it specialist fabricated and which wastegate option did you opt for. Or if anyone else has gone this route please chime in and advise what set up and bhp and torque figures were achieved. Thanks.