RB25 dyno charts... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Seven · 01-31-2007, 08:26 PM

I'm looking for dyno charts and have had very little luck with the search. I'd like to find an RB25 with a GT35R and to see what type of power they made.
I'd also like to know if anyone is running this setup that wouldn't mind me asking them a few questions about the car.

GSXRJJordan · 01-31-2007, 08:36 PM

I dont have a dyno sheet here at home, but I worked on a Formula D S14 with an RB25 and a GT30 - stock internals, stock head, HKS (I believe) knock-off top mount exh manifold, HKS WG, Greddy intake manifold, AEM EMS. At around 19 psi, it put down 404rwhp with a beautiful torque curve building from 3000 to 3500 and holding until redline. Running good timing, but still coulda made more power with a bigger turbo - but since it's a slider-car, didnt sacrifice any mid range. Extremely rev-happy motor, and even with the GT35, will be very drivable in and out of the boost. PM me if you need more info, sorry I dont have any numbers for the bigger snail.

Seven · 01-31-2007, 09:13 PM

Hey thanks man,
I'll PM you shortly.

Seven · 02-01-2007, 08:25 PM

bump just in case anyone else has a chart or two

bchslap · 02-01-2007, 08:28 PM

I'll see if I can get my friend's RB dyno sheet.. he's all stock motor/turbo, on AEM EMS, and did like 320-330 @ 10-12psi..

Seven · 02-01-2007, 09:21 PM

thatd be great Thanks

Seven · 02-04-2007, 05:51 PM

any word?
msg length

kouki_s14 · 02-04-2007, 05:58 PM

Just dynoed my car last night

stock turbo, 10psi, Mine's tuned ECU, FMIC, intake, exhaust (although i did still have a silencer on the muffler) pump gas

I'm guessing at 12psi on 100 octance without a cat and no silencer, maybe 270whp?

hope that helps a bit

Seven · 02-05-2007, 11:04 PM

Oh sweet...
What are those factory turbo good to PSI/whp wise?
Thanks

kouki_s14 · 02-05-2007, 11:10 PM

13-14 psi is pushing it, wont last too long at that amount of boost(the turbo).
you may be able to get it to 290-300, but that has a good chance of damaging the turbo

WILDACEX187 · 02-05-2007, 11:17 PM

factory turbos are not to be pushed past 12 psi or else u'll kill the cheap wheel.

kouki_s14 · 02-05-2007, 11:20 PM

forgot to mention to get to 290-300 your motor has to be in great condition and you need a dam good tune with 100 octane

i also have exedy hyper single clutch, stock intake manifold, etc

Seven · 02-05-2007, 11:21 PM

looks like I'll be buying a GT35R right away then

WILDACEX187 · 02-06-2007, 12:51 AM

u dont have any problems with the nvcs at that psi kouki? u ever heard of the rich and retard feature?

kouki_s14 · 02-06-2007, 12:59 AM

i ran the dyno at 10psi, havnt tried 12 yet.
want to clearify on what youre talking about?

coreansurfer · 02-06-2007, 02:30 AM

^^ do you have the greddy intake manifold?

WILDACEX187 · 02-06-2007, 09:29 AM

rich and retard is a feature on the ecu where the ecu sees too much air coming into the engine too fast and retards timing and dumps more fuel. it happens at around 4k rpm and stops at 5k rpm. it feels like a flat spot, no power but boost is still where its suppose to be

kouki_s14 · 02-06-2007, 11:23 AM

Quote:

Originally Posted by WILDACEX187

rich and retard is a feature on the ecu where the ecu sees too much air coming into the engine too fast and retards timing and dumps more fuel. it happens at around 4k rpm and stops at 5k rpm. it feels like a flat spot, no power but boost is still where its suppose to be

o yea i thought thats what you were talking about. Im guessing Mine's tuned that bit out on my motor cuz i've never had that. My cousin's motor however did, and it is dammm annoying. I have smooth power all the way up

here is another dyno comparing mine with a S13 that just finished the swap
he has FMIC, exhaust, intake, greddy intake manifold and Q45 TB, STOCK ecu

you can see that drop off you are talking about on the S13(purple lines). it is rather dramatic compared to my car. Mine's did a great job tuning this motor and i've never felt that loss in power, i am dam glad i didnt either, cuz i hate feeling that shit when i drive my cousins car.

WILDACEX187 · 02-06-2007, 08:07 PM

awesomeness. nice bro.

01-31-2007, 08:26 PM	#1
Seven Zilvia Member Join Date: Sep 2005 Location: Issaquah, WA Age: 40 Posts: 218 Trader Rating: (0) Feedback Score: 0 reviews	RB25 dyno charts... I'm looking for dyno charts and have had very little luck with the search. I'd like to find an RB25 with a GT35R and to see what type of power they made. I'd also like to know if anyone is running this setup that wouldn't mind me asking them a few questions about the car.

01-31-2007, 08:36 PM	#2
GSXRJJordan Post Whore! Join Date: May 2006 Location: San Diego, CA Posts: 9,135 Trader Rating: (19) Rides Gallery: GSXRJJordan Feedback Score: 19 reviews	I dont have a dyno sheet here at home, but I worked on a Formula D S14 with an RB25 and a GT30 - stock internals, stock head, HKS (I believe) knock-off top mount exh manifold, HKS WG, Greddy intake manifold, AEM EMS. At around 19 psi, it put down 404rwhp with a beautiful torque curve building from 3000 to 3500 and holding until redline. Running good timing, but still coulda made more power with a bigger turbo - but since it's a slider-car, didnt sacrifice any mid range. Extremely rev-happy motor, and even with the GT35, will be very drivable in and out of the boost. PM me if you need more info, sorry I dont have any numbers for the bigger snail. __________________ Jordan Innovations has a new web site! www.JordanInnovations.com -- All your favorite FD Pro Drifters love it, trust me -- www.JordanInnovations.com

02-01-2007, 08:28 PM	#5
bchslap Join Date: Dec 2006 Location: Virginia Age: 58 Posts: 22 Trader Rating: (0) Feedback Score: 0 reviews	I'll see if I can get my friend's RB dyno sheet.. he's all stock motor/turbo, on AEM EMS, and did like 320-330 @ 10-12psi.. __________________

02-05-2007, 11:17 PM	#11
WILDACEX187 Post Whore! Join Date: Jan 2003 Location: QUEENZ, NYC Age: 42 Posts: 3,103 Trader Rating: (4) Feedback Score: 4 reviews	factory turbos are not to be pushed past 12 psi or else u'll kill the cheap wheel. __________________ SR POWA COUPE LUVVV!!!

02-06-2007, 12:51 AM	#14
WILDACEX187 Post Whore! Join Date: Jan 2003 Location: QUEENZ, NYC Age: 42 Posts: 3,103 Trader Rating: (4) Feedback Score: 4 reviews	u dont have any problems with the nvcs at that psi kouki? u ever heard of the rich and retard feature? __________________ SR POWA COUPE LUVVV!!!

01-31-2007, 09:13 PM	#3
Seven Zilvia Member Join Date: Sep 2005 Location: Issaquah, WA Age: 40 Posts: 218 Trader Rating: (0) Feedback Score: 0 reviews	Hey thanks man, I'll PM you shortly.

02-01-2007, 08:25 PM	#4
Seven Zilvia Member Join Date: Sep 2005 Location: Issaquah, WA Age: 40 Posts: 218 Trader Rating: (0) Feedback Score: 0 reviews	bump just in case anyone else has a chart or two

02-01-2007, 09:21 PM	#6
Seven Zilvia Member Join Date: Sep 2005 Location: Issaquah, WA Age: 40 Posts: 218 Trader Rating: (0) Feedback Score: 0 reviews	thatd be great Thanks

02-04-2007, 05:51 PM	#7
Seven Zilvia Member Join Date: Sep 2005 Location: Issaquah, WA Age: 40 Posts: 218 Trader Rating: (0) Feedback Score: 0 reviews	any word? msg length

02-04-2007, 05:58 PM	#8
kouki_s14 Zilvia FREAK! Join Date: Jan 2004 Location: Los Angeles Posts: 1,550 Trader Rating: (0) Feedback Score: 0 reviews	Just dynoed my car last night stock turbo, 10psi, Mine's tuned ECU, FMIC, intake, exhaust (although i did still have a silencer on the muffler) pump gas I'm guessing at 12psi on 100 octance without a cat and no silencer, maybe 270whp? hope that helps a bit

02-05-2007, 11:04 PM	#9
Seven Zilvia Member Join Date: Sep 2005 Location: Issaquah, WA Age: 40 Posts: 218 Trader Rating: (0) Feedback Score: 0 reviews	Oh sweet... What are those factory turbo good to PSI/whp wise? Thanks

02-05-2007, 11:10 PM	#10
kouki_s14 Zilvia FREAK! Join Date: Jan 2004 Location: Los Angeles Posts: 1,550 Trader Rating: (0) Feedback Score: 0 reviews	13-14 psi is pushing it, wont last too long at that amount of boost(the turbo). you may be able to get it to 290-300, but that has a good chance of damaging the turbo

02-05-2007, 11:20 PM	#12
kouki_s14 Zilvia FREAK! Join Date: Jan 2004 Location: Los Angeles Posts: 1,550 Trader Rating: (0) Feedback Score: 0 reviews	forgot to mention to get to 290-300 your motor has to be in great condition and you need a dam good tune with 100 octane i also have exedy hyper single clutch, stock intake manifold, etc

02-05-2007, 11:21 PM	#13
Seven Zilvia Member Join Date: Sep 2005 Location: Issaquah, WA Age: 40 Posts: 218 Trader Rating: (0) Feedback Score: 0 reviews	looks like I'll be buying a GT35R right away then

02-06-2007, 12:59 AM	#15
kouki_s14 Zilvia FREAK! Join Date: Jan 2004 Location: Los Angeles Posts: 1,550 Trader Rating: (0) Feedback Score: 0 reviews	i ran the dyno at 10psi, havnt tried 12 yet. want to clearify on what youre talking about?

02-06-2007, 09:29 AM	#17
WILDACEX187 Post Whore! Join Date: Jan 2003 Location: QUEENZ, NYC Age: 42 Posts: 3,103 Trader Rating: (4) Feedback Score: 4 reviews	rich and retard is a feature on the ecu where the ecu sees too much air coming into the engine too fast and retards timing and dumps more fuel. it happens at around 4k rpm and stops at 5k rpm. it feels like a flat spot, no power but boost is still where its suppose to be __________________ SR POWA COUPE LUVVV!!!

02-06-2007, 08:07 PM	#19
WILDACEX187 Post Whore! Join Date: Jan 2003 Location: QUEENZ, NYC Age: 42 Posts: 3,103 Trader Rating: (4) Feedback Score: 4 reviews	awesomeness. nice bro. __________________ SR POWA COUPE LUVVV!!!