sr20det stock hp??

[tEknoS13]

ok.. has any1 with a stock sr20det dynoed their car??? i was just surfing around cause im ready to start swapping my sr, and i came across this site. http://www.importtuner.com/pow....html

according to this, this guy was making 166hp/167tq. with stock ka exhaust. thats real low in my opinion. now after they swapped on the exhaust, intake, and downpipe, it only made 189.5hp and 185tq. WTF!! isn't the SR supposed to have like 205hp stock?? some1??!!!

[wa-chiss]

I quess it all depends on how the motor was treated before. Motors that were treated like crap are just that. Crap.

[masticatingcow]

The 205hp rating is crank horsepower. You lose between 15% and 20% in the stock drivetrain.

20% of 205 is about 40, so 205 - 40 = 165. The dyno is about right.

[240RB1]

[tEknoS13]

dammit.... well, i already installed a walbro 255lph pump, fidanza 9.5lbs flywheel, spec st.2 clutch, greddy front mount intercooler, apexi gt spec exhaust, and apexi air intake. any thoughts??? is there a chance that mine can go higher than that. getting aem boost controller, and apexi safc

[masticatingcow]

dammit.... well, i already installed a walbro 255lph pump, fidanza 9.5lbs flywheel, spec st.2 clutch, greddy front mount intercooler, apexi gt spec exhaust, and apexi air intake. any thoughts??? is there a chance that mine can go higher than that. getting aem boost controller, and apexi safc

Of course you'll make more power. Do some searching. The SR formula is well-established.

[tEknoS13]

well yea datz why we do it.. i got a couple of friends that got sr's. one of them dynoed his.stock. it read 198hp. the other dude actually hit 203hp with greddy exhaust and intake.

[masticatingcow]

^ I think the dyno was being generous that day. Honestly, do you think that dynos can't be manipulated?

A high stock number on a Redtop SR is probably 175whp. Don't be hurt about it, though. The stock KA, on a GREAT day, will only make about 130whp. Drivetrain loss is part of the game. Don't sweat it.

[tEknoS13]

naw not really i just thought it would be higher. but itz kool, im doing a lot more to it anyway. getting my diff, aluminum driveshaft, cams... and porting head soon.

[crakin]

THREAD JACK MY NIZZLE.

sorry, I was wondering if anyone had any sr20det formulas as parts list to certain horsepower results....Thanks. Again sorry

[TchouikoS13]

Noobflacks, search the SR RWD forum. Honestly, its thrown around like hotcakes.

[masticatingcow]

THREAD JACK MY NIZZLE.

sorry, I was wondering if anyone had any sr20det formulas as parts list to certain horsepower results....Thanks. Again sorry

Formula is this:

S+f(u)

S = Stock SR powerf = Fuel Delivery Rateu = a freaking idiot if you thought there was an actual formula

Everything is dependent on tuning. Search the SR forum and you'll see what people are doing. At this point, there's not a lot of groundbreaking work being done on that motor...

[SketchyRollin564]

Formula is this:

S+f(u)

S = Stock SR powerf = Fuel Delivery Rateu = a freaking idiot if you thought there was an actual formula

Everything is dependent on tuning. Search the SR forum and you'll see what people are doing. At this point, there's not a lot of groundbreaking work being done on that motor...

bwahahaha

I super lol'ed

Everything i was gonna say had already been stated, so all that was left for me to do was sit back and laugh.

[sviellvoicae]

tuning is the single most important thing to it all!

example: took my stock sr with no tuning to the track.... ran a 15.9 at 85mph. also had a regulator issue and had to shift at 5krpm. also keep in mind i was at 5000 ft above sea level.

had a tune done and the next weekend ran a 14.2

[TchouikoS13]

nice intercooler you go there to go with your rainbow pipes

[Fenris]

from wiki

Car Engine Compression Power Torque Turbo Stock Boost Turbine Compressor

'89 U12 Bluebird Ltd Redtop 8.5:1 150 kW (201 HP) @ 6000 rpm 202 ft·lbf @ 4000 rpm T-25

'91-'95 U13 Bluebird Ltd Redtop 8.5:1 154 kW (206 HP) @ 6000 rpm 202 ft·lbf @ 4000 rpm T-25

'95-'97 W10 Avenir Salut Silvertop 8.5:1 154 kW (206 HP) @ 6000 rpm 202 ft·lbf @ 4000 rpm T-25

'97-'01 W11 Avenir GT4 Silvertop 8.5:1 169 kW (227 HP) @ 6000 rpm 202 ft·lbf @ 3600 rpm T-25

'90-'94 N14 Pulsar GTi-R Redtop 8.3:1 169 kW (227 HP) @ 6400 rpm 203 ft·lbf @ 4800 rpm T-28

79 Trim, .86 A/R Housing

'91-'93 S13 Silvia, 180sx Redtop 8.5:1 151 kW (202 HP) @ 6000 rpm 203 ft·lbf @ 4000 rpm T-25G 7psi

62 trim 53.8 mm .80 A/R housing BCI-1

'94-'98 S13 180sx Blacktop 8.5:1 151 kW (202 HP) @ 6000 rpm 203 ft·lbf @ 4000 rpm T-25G 7psi

62 trim 53.8 mm, .80 A/R housing BCI-1

'95-'99 S14 Silvia, 200sx Blacktop 8.5:1 162 kW (217 HP) @ 6000 rpm 203 ft·lbf @ 4800 rpm T-28

62 trim 53.8 mm, .64 A/R housing, bush bearing BCI-1 in T-04B housing

'99-02 S15 Silvia, 200sx Blacktop 8.5:1 183 kW (245 HP) @ 6400 rpm 202 ft·lbf @ 4800 rpm T-28

60 trim 60 mm, ball bearing, Inco turbine wheel BCI-1 in T-04B housing

[eazye2000]

...too much info for me.

[homeslicej2]

nice intercooler you go there to go with your rainbow pipes

SR forum holds your answers OP.

[sip]

ok.. has any1 with a stock sr20det dynoed their car??? i was just surfing around cause im ready to start swapping my sr, and i came across this site. http://www.importtuner.com/pow....html

according to this, this guy was making 166hp/167tq. with stock ka exhaust. thats real low in my opinion. now after they swapped on the exhaust, intake, and downpipe, it only made 189.5hp and 185tq. WTF!! isn't the SR supposed to have like 205hp stock?? some1??!!!

Dyno's don't mean ****. They are not consistant or repeatable because they are dependant on many factors. They are to be used for tuning, or to give an approx power output, but it is nothing to dyno your car, do nothing, come back the next day and have it change 15 hp.

PS drivtrain loss accounts for about 12% hp loss.

[Hijacker]

It's accepted that there's between 15-20% for RWD drivetrainloss. 12-15% for FWD applications.

And since this thread started nowhere and is going nowhere...