Does a S13 redtop sr20det greddy inlet manifold work on a s14/s14a blacktop sr20det ?

**schnabulator** · 22-09-2016, 10:10

Hi guys,

I have a Greddy air inlet manifold of an S13 redtop sr20det.

Do you know if I can use this inlet manifold on an s14/s14a blacktop sr20det? Are the flanges the same so it fits just fine (I know that I have to change a lot other things, I am talking just about the flange)?

Best regards,
Flo

**Actual_Ben_Taylor** · 22-09-2016, 10:15

No, it doesn't fit

**Dan@DB-Power** · 22-09-2016, 10:22

As Ben said, they aren't compatible.

The S13 Redtop has a High port setup whilst the S14 SR's had a Low port.

**schnabulator** · 22-09-2016, 14:08

Has someone a comparison photo ? So I can understand better.

**Dan@DB-Power** · 22-09-2016, 16:09

**schnabulator** · 22-09-2016, 16:52

Originally Posted by Dan@DB-Power

Looks for me that the redtop head as bigger inlet chanels.

**Actual_Ben_Taylor** · 22-09-2016, 21:13

Low port (S14) flows more air

**chris2287** · 23-09-2016, 13:51

Interesting! so which one does the s15 have?

**Actual_Ben_Taylor** · 23-09-2016, 19:45

Originally Posted by chris2287

Interesting! so which one does the s15 have?

Same as S14 - low port

**schnabulator** · 26-09-2016, 11:45

Is it possible to swap from red top to a black top or notch top head (incl. all internals of the head)?

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Does a S13 redtop sr20det greddy inlet manifold work on a s14/s14a blacktop sr20det ?

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