TOMEI PON CAMS, APEXI PFC, T25 13psi boost - Page 2 - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Dboyizmlg · 05-31-2013, 12:19 PM

Quote:

Originally Posted by Croustibat

That is retardedly overkill ... a rom tune, an S14 turbo, injectors, an intercooler and he will surely get more power and be more reliable than what you have now, for at most a quarter of the price...

No one needs cams, springs or retainers for that turbo (hell you dont need any of these until you are aiming for more than 400HP, and at that time the problem is called gearbox)

I agree with you bro.

steve shadows · 05-31-2013, 12:22 PM

Quote:

Originally Posted by Kingtal0n

Power FC D-jetro should be used when SR20DET engines are making over 400 horsepower, OR when you simply wish to delete the MAF sensor. an L-jetro PFC is very easy to tune, compared to the D-jetro map version. Easy enough for a beginner in my opinion, if you have a decent computer background.

Wait what?

PFC should be used anytime you want to tune the map on the car.

Even the factory ignition map is far too advanced for US pump gas and the afrs go very lean if all you have is a walbro and turn up the boost on a stock turbo.

Have to say I don't agree with you here.

If you're going for 300-400 whp I think the PFC is the way to go, L Jetro with Z32 MAF, used if you can find one that has been tested (for around 500-600 bucks).

If you're going for 400-600 whp then I suggest the Haltech system.

Kingtal0n · 05-31-2013, 01:07 PM

Quote:

Originally Posted by steve shadows

Wait what?

PFC should be used anytime you want to tune the map on the car.

Even the factory ignition map is far too advanced for US pump gas and the afrs go very lean if all you have is a walbro and turn up the boost on a stock turbo.

Have to say I don't agree with you here.

If you're going for 300-400 whp I think the PFC is the way to go, L Jetro with Z32 MAF, used if you can find one that has been tested (for around 500-600 bucks).

If you're going for 400-600 whp then I suggest the Haltech system.

You misunderstood me too? What part? because I dont understand what you are saying. You dont agree with what part of what I said? be very specific.

And before you answer, let me be very specific.
Power FC L-jetro should be used on cars under 400 horsepower unless you wish to delete the maf sensor. WHY? Because the maf is an easy simple tuning device and there is no reason not to use a Z32 maf on a < 400 horsepower sr20.

power FC D-jetro should be used when you wish to delete the maf, or you are going to exceed it to some extent. Anything over 400 generally but you can do 500bhp with a Z32 if you know what you are doing. I dont care if the maf has a max; you can tune beyond the max if you are careful. Same with a map sensor, you can tune a 2bar map (up to 15psi) at 20psi because your last line will be your max boost, whatever it is.

So what part is in disagreement?

Kingtal0n · 05-31-2013, 01:28 PM

Quote:

Originally Posted by steve shadows

Wait what?

Even the factory ignition map is far too advanced for US pump gas and the afrs go very lean if all you have is a walbro and turn up the boost on a stock turbo.

I always thought the factory ignition maps are actually somewhat conservative.

Croustibat · 05-31-2013, 03:44 PM

Or he could get a new nistune for half the price of a PFC. But he wont be able to use it if he does not have AFR & EGT sensors and know how to map ... so in the end his best chance is to find a tuner who will do the job and ask him what he needs for that.

BTW you still dont need an upgraded valvetrain for 400HP, just slap a gt2871r on it and you got them. Better use that money for a new gearbox and a torsen or a real LSD. If you want to rev high and then put a gt3076r with an A/R >0.86, then yes by all mean put some cams and upgraded valvetrain ... but that is 500+HP territory. With a gt2871r and a 400HP goal, it is just throwing money down the drain.

Kingtal0n · 05-31-2013, 04:06 PM

Quote:

Originally Posted by Croustibat

Or he could get a new nistune for half the price of a PFC. But he wont be able to use it if he does not have AFR & EGT sensors and know how to map ... so in the end his best chance is to find a tuner who will do the job and ask him what he needs for that.

BTW you still dont need an upgraded valvetrain for 400HP, just slap a gt2871r on it and you got them. Better use that money for a new gearbox and a torsen or a real LSD. If you want to rev high and then put a gt3076r with an A/R >0.86, then yes by all mean put some cams and upgraded valvetrain ... but that is 500+HP territory. With a gt2871r and a 400HP goal, it is just throwing money down the drain.

Dear crusti:

There are no 2871 sr20s with stock camshafts making 400.
What is this now, misinformation central? Look out everybody, stock S15 sr20's cant handle 15psi of boost and stock camshaft 2871 sr20's can make 400rwhp.

dubble yew tee eff guise
sorry if i messed up your brain

Magnoliarichj · 05-31-2013, 04:13 PM

pfc djetro!why waste time with an ugly maf setup... and you can run bov to atmosphere instantly!
fuel pump injectors exhaust FTW

Magnoliarichj · 05-31-2013, 04:14 PM

oh and talk to steve shadows.

1nasty240sx · 06-05-2013, 04:01 PM

Get nismotronic you will not regret it for $550 NismoTronic
Currently running this program and very happy with it currently making 310/300 on a s15 turbo @17psi

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05-31-2013, 03:44 PM	#35
Croustibat Nissanaholic! Join Date: Aug 2011 Location: France - Toulouse Age: 41 Posts: 1,851 Trader Rating: (0) Feedback Score: 0 reviews	Or he could get a new nistune for half the price of a PFC. But he wont be able to use it if he does not have AFR & EGT sensors and know how to map ... so in the end his best chance is to find a tuner who will do the job and ask him what he needs for that. BTW you still dont need an upgraded valvetrain for 400HP, just slap a gt2871r on it and you got them. Better use that money for a new gearbox and a torsen or a real LSD. If you want to rev high and then put a gt3076r with an A/R >0.86, then yes by all mean put some cams and upgraded valvetrain ... but that is 500+HP territory. With a gt2871r and a 400HP goal, it is just throwing money down the drain.

05-31-2013, 04:13 PM	#37
Magnoliarichj Zilvia Member Join Date: Apr 2012 Location: Florida Age: 40 Posts: 194 Trader Rating: (1) Feedback Score: 1 reviews	pfc djetro!why waste time with an ugly maf setup... and you can run bov to atmosphere instantly! fuel pump injectors exhaust FTW

05-31-2013, 04:14 PM	#38
Magnoliarichj Zilvia Member Join Date: Apr 2012 Location: Florida Age: 40 Posts: 194 Trader Rating: (1) Feedback Score: 1 reviews	oh and talk to steve shadows.

06-05-2013, 04:01 PM	#39
1nasty240sx Leaky Injector Join Date: Dec 2012 Location: South Central Pennsylvania Age: 29 Posts: 70 Trader Rating: (1) Feedback Score: 1 reviews	Get nismotronic you will not regret it for $550 NismoTronic Currently running this program and very happy with it currently making 310/300 on a s15 turbo @17psi