HOW TO: Do I have a low port or high port? - Page 4

eduardo_ss · 07-20-2007, 12:18 AM

I have the same question above... newbie LOL

Mike · 07-20-2007, 08:50 AM

The easiest way to tell the exhaust cam from the intake cam is to look at the end opposite where the cam gear gets bolted up. The exhaust cam will have a notch cut in the end of it so it can turn the distributer. The intake cam will not.

Mike

mcalvo_cr · 07-20-2007, 10:49 AM

Yap.. that's right.. thanks Mike.. have to tell you all I switch my intake camshaft just yesterday.. results are getting achieved..

One more question, some people tell me that I have to switch both of them, but not sure.. I just replaced the intake one.. is that ok?

Mike · 07-20-2007, 11:09 AM

I'm pretty sure the exhaust cams are the same from 90-99.

Mike

CovertRussian · 07-20-2007, 01:00 PM

Quote:

Originally Posted by mcalvo_cr

Yap.. that's right.. thanks Mike.. have to tell you all I switch my intake camshaft just yesterday.. results are getting achieved..

One more question, some people tell me that I have to switch both of them, but not sure.. I just replaced the intake one.. is that ok?

mcalvo_cr, don't bother replacing the exhaust cam it is the same as what you currently have.

Quote:

Originally Posted by Mike

I'm pretty sure the exhaust cams are the same from 90-99.

Mike

I'm pretty positive they are the same

Harris · 07-31-2007, 11:14 PM

WTF? All this arguing even after having posted pics in the first post? Wow. The pics make the description the EASIEST way to tell! And then newbies call my post out to be wrong? B13Sentra2DR, you're lucky I'm not allowed to be a search nazi no more.

Anyhow, I'm letting this issue go, but I will say this to newbies: don't call out till you can literally bet your ass that you're right. It helps save face.

Krist · 11-20-2007, 12:54 AM

I don't know about this top end of 130MPH.
I've owned two classics, one 93 and one 94.
Both did 140MPH stock.
This is looking at the speedometer by the way, which may be some what inaccurate.
You need a long stretch to get from 135 to 140 though.

Here's something new for your whole lowport vs. highport arguement:
What about my 02 G20 Sport lowport roller rocker?
It produces 145HP at the crank.

nis-son · 02-24-2008, 11:40 PM

which motor is better for turboing i have both a high and low port and i dunno which 1 would be the best for a turbo setup

mcalvo_cr · 02-26-2008, 10:30 AM

Quote:

Originally Posted by nis-son

which motor is better for turboing i have both a high and low port and i dunno which 1 would be the best for a turbo setup

I say low port on OBD1 ..

PEPO23 · 05-14-2008, 07:40 PM

Hi guys, whats up i have a question maybe someone could help, i recently changed my engine into a most recente one 95, but the engine came from japan, sr20, so the engine its about the same i just changed, im asking because my car came from us, and the regulation for gas emisions are more restricted???

tks

mcalvo_cr · 05-15-2008, 10:11 AM

Quote:

Originally Posted by PEPO23

Hi guys, whats up i have a question maybe someone could help, i recently changed my engine into a most recente one 95, but the engine came from japan, sr20, so the engine its about the same i just changed, im asking because my car came from us, and the regulation for gas emisions are more restricted???

tks

And.. the question is?

PEPO23 · 05-17-2008, 09:37 AM

jejej yeah right if my new engine has more power than the one i use to have???

Wolf_SER · 05-25-2008, 04:43 AM

I am now looking for the Highport intake cam for my new baby (98 200 SX SE-R) however, How can I know I will get the right one and not the same one I currently have??? I'm really into getting these extra 7 hps

Thank you

PEPO23 · 05-26-2008, 01:12 AM

other thing you can do its put the cams of a high port in your low port , and you will get more power

good luck

mcalvo_cr · 05-27-2008, 02:45 PM

Quote:

Originally Posted by PEPO23

jejej yeah right if my new engine has more power than the one i use to have???

Man.. not sure.. the only difference between them, besides the high/low port admision is the OBDII stuff..

I know for sure you will have on your new 95 engine a rev & speed delimiter.

We all know also that swapping the cam shafts will give you about 4hp on your 95 engine..

But.. considering them both stock (with its equivalent ECUs and stuff), your question is quite interesting..

dre · 08-02-2008, 09:59 AM

There is also a rumor goin around that if u swap out the highport sr20 intake cam for the highport sr18 intake cam you're suppost to gain some horsepower, does anyone have any info on how tru this is and if it is how much hp will be gained ?

Canx2k · 08-02-2008, 04:46 PM

will putting in the highport cam in a lowport engine on our 2001 sentra se (obdII) throw a cel?

dre · 08-02-2008, 08:32 PM

By simply changing the intake cam shuold'nt throw a code unless u leave sumthing disconnected or damage something in the process, but i think that was discussed somewhere earlier in the topic. The only thing i'm questioning is the difference between the intake cam on the highport SR18 and SR20 is the lift and duration the same or does the SR18 have a more radical lift/duration as compared to the SR20 intake cam.

dre · 08-05-2008, 03:27 PM

Somebody i need a little help on this topic please, i understand the part about swapping out the low port intake cam for the high port intake cam, but what about the difference(if there is one) between the hight port sr18 and high port sr20 intake cams ?

Harris · 08-05-2008, 03:38 PM

Quote:

Originally Posted by dre

Somebody i need a little help on this topic please, i understand the part about swapping out the low port intake cam for the high port intake cam, but what about the difference(if there is one) between the hight port sr18 and high port sr20 intake cams ?

If you have the cam profile for the SR18DE and compare it to the high port SR20DE, you'll know if it will provide more power or not. Without that information, no one can help you.