how much power from a P&P of the head and intake plus 55mm TB?

wrong section.

*Skrilla
"Honest officer, I thought you were trying to race me"
Talon: 1st 2.4L
'97 Prelude
'04 350Z

Originally posted by etx
Good luck man! Project 'STFU Brian your talon is dead meat' should be on it's feet soon!

Well just from a good port and polished head, and nothing else, I would say around +10 to +15 whp peak a very big mid range and as much as 17-20 whp on top end.

That's what I got when all I did was P&P a cylinder head for a 1.6 liter Storm DOHC on the dyno before and after.

Head work was the only thing done to this motor everything else was the exact same as before the install.

It's not a lot of power...... but it was a start and it was a 1.6, midrange power was like night and day.

Take a look at the actual stock whp at 7000rpm 85whp , afterward same rpm it was 102 whp, that is a 17 whp gain over stock.

Now on a 420A you should get a little more, especially with a 55MM TB and a ported manifold.

Now same whp with a custom ITB setup, Holy Moses! Little Storm would eat up any Honda on the street, bolt ons or not!

When I 1st installed the ITB setup, there was three of us in the car, I was able to chirp the tires in all three gears, before, we had a hard time squeeling the tires in 2nd with only 1 person in the car in it's stock form.

This is not advanced.

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not advanced, but that storm is badass IMO. lol. porting and polishing will probably only hurt fuel economy unless you have bolts ons or boosting. just my opnion though. goodluck.

*Skrilla
"Honest officer, I thought you were trying to race me"
Talon: 1st 2.4L
'97 Prelude
'04 350Z

Originally posted by etx
Good luck man! Project 'STFU Brian your talon is dead meat' should be on it's feet soon!

I say the 10-15 whp is definately achievable. Look at your V-8 cylinder head they can add in the 30-40whp+ range, cut that in half and why wouldn't you believe 10whp or 15whp.

A good port job and supporting intake and exhaust mods, I believe it. My ported head, which isn't the best job and is being choked out by my small exhaust, and put down some decent numbers, at 800ft altitude.



http://www.exileracing.com
una salus victus
Mods List: http://highlander.dsmpower.com/sig.htm

Originally posted by Michael_97RS
I say the 10-15 whp is definately achievable. Look at your V-8 cylinder head they can add in the 30-40whp+ range, cut that in half and why wouldn't you believe 10whp or 15whp. A good port job and supporting intake and exhaust mods, I believe it. My ported head, which isn't the best job and is being choked out by my small exhaust, and put down some decent numbers, at 800ft altitude. http://www.exileracing.com una salus victus Mods List: http://highlander.dsmpower.com/sig.htm

*Skrilla
"Honest officer, I thought you were trying to race me"
Talon: 1st 2.4L
'97 Prelude
'04 350Z

Originally posted by etx
Good luck man! Project 'STFU Brian your talon is dead meat' should be on it's feet soon!

Originally posted by Michael_97RS

Originally posted by Skrilla As a matter of fact I lay down the gauntlet to anyone who can get 15WHP off of JUST a P&P on a bone stock 420a, fuck it, a CAI also!!

I would never suggest anyone do a port and polished head on a bone stock 420A as a first mod... ever! http://www.exileracing.com una salus victus Mods List: http://highlander.dsmpower.com/sig.htm

*Skrilla
"Honest officer, I thought you were trying to race me"
Talon: 1st 2.4L
'97 Prelude
'04 350Z

Originally posted by etx
Good luck man! Project 'STFU Brian your talon is dead meat' should be on it's feet soon!

ha ah it looks like someone got the HP out of the P&P that stupid people couldn't believe HA HA lol

Allan
2008 Magnetic Black 350z NISMO /1976 Austin Mini 1098 Special (export)

Member# 1980

Originally posted by jerseystyle1

Originally posted by daniel992gnt ha ah it looks like someone got the HP out of the P&P that stupid people couldn't believe HA HA lol

Is the noob talking shit

*Skrilla
"Honest officer, I thought you were trying to race me"
Talon: 1st 2.4L
'97 Prelude
'04 350Z

Originally posted by etx
Good luck man! Project 'STFU Brian your talon is dead meat' should be on it's feet soon!

Very nice Eddy! Looks very familiar, like something I have sitting in my room, haha.



http://www.exileracing.com
una salus victus
Mods List: http://highlander.dsmpower.com/sig.htm

ohh quads! hey mikey i want to see that installed. maybe this spring??

-97 GS (First project, 299 whp)(sold)
- 97 RS 2.6 last numbers: 306hp, 352tq @16psi (Dead, parted out)
- 99 GS OZ, Hahn Kit, 56k miles (Sold)
--------
- 00 Nissan Maxima GLE (Daily Driver)
- 02 Audi A4 1.8T Quattro

Anybody remember when the no0bs used to start shit in the pits instead of in the technical threads? LOL.

I'm looking forward to seeing this quad tb set up in action.

dayum, looks like something that came off of a FI literbike... or is it?

Yea sport bikes proove how effective non-fuel injected engines can be, i got a 96 FZR600, less than a little over half a 1.0, putting out 98hp on the crank, due to 1 carb per cylinder... its crazy how much HP a motor can create when tuned for power.

Ok, I dont see the 145HP..i'm missin it somewhere! A question: Does that 1.6 L motor have a Mass Air Flow sensor, or is it MAP sensor based? IMO, our MAP based 420A will not take a good effect to porting and polishing, because the MAP cannot accurately measure slight increases of airflow that come about from porting. Our MAP's only sense maifold air pressure, which is mostly coming from the position of the throttle plate(more throttle plate opening creates less air pressure(vacume) in the manifold). I truely believe if we had Mass air flow sensor based motor, that we could gain more power with porting. Now, you should def see some shifting of the power band on these motors when ported. YOu may not really see much HP gains, but I would say its worth while if you can lengthen the power band/torque curve. 7-10HP would be all I would give too in this situation. Someone just needs to do it, dyno stock, then dyno ported to tell for sure. I would be willing to bet the above holds true. I have a heavily ported/polished head, and it did not give a much noticable gain at all...If you are going to port, I would use a SAFC to fine tune the motor with, I'd bet you can get a few more HP using that.

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
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thanks beefgg for the sig

I admit what you are saying about torque, ive seen that equation over on clubgp.com a couple times, but simple fact is you can make up for low torque by low gearing, my fzr-600 can do about 50-60mph in first gear because the gearing is very low, and the engine winds out to 12,500 rpms... sure its not that hot straight off the line, but once you get past 6 or 7,000 rpms the thing just takes off, so get up to 10mph and your gone... then the rpms never drop back out of the powerband after the beginnning of first gear...

I don't tune and modify the 420A because it's easy. Nothing worth while ever is. If I wanted easy I'd go buy a muscle car, tear down a monster V-8 and build an engine with a torque curve as flat as an aircraft carrier deck, I could do that in my sleep. Any car can have reliability issues when you start to shave 3, 4 or 5 seconds off the stock 1/4 mile time. You exceed engineering tollerences built into not only engine parts, but suspension, drivetriain, the whole car.

In a world where fuel economy and emissions rein supreme for car builders, we are left with small 4 cylinders, that need work to be fast. The 420A was not built as a performance engine. No naturally aspired factory 4 cylinder is going to come out of the box making obscene hp. The engine is a good starting point, with solid engineering.

And don't knock the engine because our car's are heavy beasts. Those 4 to 600 pounds you speak of, compared to the Neon, have put the Neon into the 13's. And no one here has that built of a 420A naturally to see what she can do, everybody slaps on a turbo and she goes, so no one has fully built an NA 420A and put it in a 2GNT, yet. Will it be the fastest thing on the road? No. But paying half the price of a Vette, you shouldn't expect Vette speed.

Driving a FWD car into the 10's isn't easy. It takes skill, technique and big slicks. Tryiong to get 10 seconds out of a FWD in street trim would be very hard to do. Physics starts to complain.

I build my car for me. Because I enjoy building it the way I want.
But most of all, because I can, and I'm not afraid.



http://www.exileracing.com
una salus victus
Mods List: http://highlander.dsmpower.com/sig.htm

When did i say that?
*EDIT*
Heh i see it now, but I DIDNT SAY IT!! just for people reading, it was the other guy who quoted me lol

*Skrilla
"Honest officer, I thought you were trying to race me"
Talon: 1st 2.4L
'97 Prelude
'04 350Z

Originally posted by etx
Good luck man! Project 'STFU Brian your talon is dead meat' should be on it's feet soon!