I have heard that you won't gain as much on spray if you have ported and polished heads. What are some of you heads/cam guys running n/a then on spray?

 

Hmm I thought that you would gain more cause you can flow more air. I may be wrong but thats what I thought.

Jason

 

Nitrous doesn't much care about the intake side, but better exhaust flow will increase the gains from a given amount of nitrous. No way better heads, of any sort, will hurt though.

Rich Krause

 

Aight thats what I thought but friends around here said it will hurt but i just said they didnt have the true hp settings as what they thought or something.. So i guess i was right

thanks

 

Your completely wrong. more air in and more air out, which is usually consistant with ported heads, will result in more power even without Nitrous. and it will benefit the nitrous even more over stock head flow. whomever told you this has NO idea what they are talking about.

 

well I think he was running 12.6n/a and picking up 8tenths on a 300 shot

 

 

There is somthing very wrong with his car.

 

thats what i thought like maybe his fuel rpessure wasnt what it needed to be or something. but he says its cause he ahd ported heads on it
owell now i know i was right

 

i think so too

 

Something really wrong with his car.

These are 1/8th mile times, but NA with top half build I ran 8.00 @ 88mph. On the nitrous 150shot I ran 7.30 @ 98 mph. I was granny shifting and with that mph it could be 7.1 area. So something is really wrong with his car when I could outrun him on a 150shot.

 

The more EFFICIENT your engine is, N/A... the LESS N2O will help it.

Case in point: Stock lt1's - ls1's usually lose a second of ET and gain 10 MPH on a 100 shot. These engines are on the LOW end of effiency!

Add the same 100 HP shot to a Pro/Stock car and he MAY lose a tenth and gain 1 MPH. Very efficient engine!

Gas helps the weak much more than the strong. A good port job head is stronger, more efficient than a stock head. As mentioned previously, a ported head isn't going to hurt, but that money may be spent wiser elsewhere!

The main benefit of N2O is a heavier Oxygen charge than
Normal Aspiration can provide. THAT is why you have to add the extra fuel... MORE OXYGEN.

Just my HUMBLE OPINION as I am NO EXPERT!!

 

this will all settle when i go on the dyno within a week ..

my heads flow a humble humble 301/227 @ .600 and i got a tiny 230/244 cam i'll spray the 100 shot NX wet on the dyno and see if it'll produce 100 rwhp or not !

(not to be biased .. but looks like my heads and cam would love some nitrous thrown at them .. their both exhaust happy)


ps. i think what redbird might fail to keep in mind is that .. a 100 hp shot of nitrous will still net the pro stock motor an extra 100 hp .. but that is a small fraction of the total hp .. and when ur in the 6s and 7s 100 hp wont help u as much as it did when u were in the 13s and 12s .. the nitrous is just as efficient on high hp motors .. its just that the extra hp doesnt net as much ET or MPH cuz ur already going so damn fast !

 

very interesting
i can see both sides kinda
sideways_into_3rd your dyno runs should answer this up for us

 

Okay... maybe my Pro/Stock comparison is TOO much.
Let me just say that a 14 second car WILL benefit from a 100 shot more than a 12 second car will. The 12 second car is already making more efficient use of N/A air than the 14 second car, i.e.,
cam, headers/exhaust, CAI, etc...!

An engine, being an air pump, can only pump as much air as it can move in, fire, and push out. The more efficient use of natures air requires less of the bottles air to fill the cylinder. Remember... you can only put so much air, be it compressed or not, into a cylinder before further mods need be done to increase cylinder capacity.

HInk (I think)