choaderboy2

So I dynoed an N1 intake manfold and throttle body on an SR20VE today. The VE in question is bone stock with the excepetion of a HS Gen 6 header, Custom CAI and ram air box and a 3" exhaust system. The upper and lower hapfs were match ported and the mainfold was also match ported to the head.

There is actualy little difference between the N1 maifold and the stock VE piece. The N1 has the big throttle body and a bigger plenum but the runner legth is nearly the same.

The manfold made a whopping difference of zero hp and torque. You could nearly overlay the before and after dyno graphs. So I would say that unless you have cams, don't even bother with this mod.

Next up I test this combo with the addtion of N1 camshafts and adjustable timing gears. I think this might work and the manifold might require more mods to really help. Then I'll change the chip in the JWT ECU to allow a 8000 rpm redline and with the rest of the program optimoized for the N1 cams.

Then I'll test the production SR20turbofreak header against the gen 6, then the custom header he made for me with first the 2.25 venturi then a 2.350 venturi.

I'll be reporting the results in the next few days,

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hpro123

Wow!

Someone got the VE bug! Thanks Mike, this will be an interesting month or two!

cmng

Em
should it be interesting to Fit N1 cam on normal VE Intake manifold ?
then dyno it and compare it with N1 cam with N1 Intake manifold ?

then we can guess how much N1 intake manifold give the extra power compared with Normal VE intake manifold ?
whether the USD 500 upgrade is worth or not ?

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STRATTON

you got the results i figured you would.

i believe kesi did this some time ago and came up with the same outcome.

i think he tested this with n1 cams etc.

ill let him chime in though if im incorrect.

stratton.

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choaderboy2

I'll do it if you pay for my dyno time

cmng

i can dyno it for you if you can send it to malaysia

here Dyno rental only Rm250 per hr include wideband reading as well = USD 70

nismos13silvia

Kool, just the info. I been needing to know.

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Andy R.

Cool. What are the hp and tq #?

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Andreas Miko

Just some thing to remember.

A N1 manifold does not just bolt on and work. A N1 manifold needs to be ported beofre it is put on. The top side pf the n1 runner is smaller than the stock SR20be unit.

The N1 manifold that comes on any N1 car is ported and ported very large I must say. The bell on the end of the N1 intake runners going to the head is about 1/8 of an inch larger alone.

You should get better throttle responce with the larger TB and that alone helps out.

Any way just a few words on this.

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choaderboy2

You mean I have to port the top plenum into the runners larger? I match ported the plenum to the runners. I still don't think it will make much difference on a stock VE.

The dyno graphs laid right on top of each other.

choaderboy2

Well i am using a superflow dyno and it is a load type simular to a mustang and it reads about 10% lower than a dynojet. My baseline run was about 164 whp.

I am just using this dyno for testing and tuning and will get dyno results from a dynopack later.

Andreas Miko

I am not saying it will make more on a stock ve but if you dont port it, it will not make what it should on a worked out VE.

sr20venosfreak

Why is it that you spend 500 -600 bucks on a N1 mani when you can get an O2 induction mani that will be better for a extra 100 bucks.Is there something bad about O2 mani cause I'm planning to buy one.

kesi24

You won't make any power with 02 on most N.A Ve's.Its a waste of money

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sr20venosfreak

Damn that sucks.There is no mani that makes any diffrence in whp on ve's.I guess I will stay with a stock intake.Thanks on the info.

Andreas Miko

The O2 induction manifold and N1 manifold are good for turbo with the 02 induction getting the upper hand.

Clint

Has anybody has tested the N1 kit over a standard manifold setup on a built VE and actually got better than a 1 or 2 HP increase?

NismoTheDog

sucks it didnt do much. but at least you are going to be doing more later. may last dyno was 164whp(134tq) also but with stock b13 exhaust w/ stock cat. so im really looking foward to seeing what mods you do and the power they make.

5speed

Mike's result backs up what the Puerto Rican members have found, the N1 manifold made no difference.

FastNX

Keep in mind this test was with stock cams.

My brother's car has mild headwork and SR20Turbofreak cams. We needed to temporarily steal the N1 manifold and throttle body for the race car. Going back to the stock manifold made a very noticeable difference above 7000rpm. This engine is flowing about 30hp more air than Mike's test mule.

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