hks 2540

[Guest SiM97]

anyone looked at or used HKS 2540 turbo kit on RB20DET what kind of response and power figures? If i was to sell how much is it worth?

thanks

[Guest INASNT]

from all the tests i have seen with the 2540 in single and twin form they produce good peak power but u get an crap turbo lap power curve

[Guest SiM97]

thanks Instant! was only able to go for drive and not see any dyno charts but it is hell laggy!! by 4 and half i think boost lifted full to 1.3 and it rocketed. dont know what the chances of are holding onto it in the wet?

one other question. is it possible to see what cc the injectors are on a vehicle?

thanks

Originally posted by INASNT

from all the tests i have seen with the 2540 in single and twin form they produce good peak power but u get an crap turbo lap power curve

[Guest INASNT]

if u can read the model number i guess u can track down the cc rating from the manufacturer, or u can test them on a flow bench if u wanted 2 also

[Sydneykid]

Hi guys, another one with 2540 experience, try a 2530 and you will be amazed at the difference, almost the same max power but much earlier boost, more progression and much higher average power (flatter power curve).

[KamikazeR33]

r u talking about a 2540 on rb20 Sydneykid?

cos im thinkin bout this ona rb25 and wanna know the same info

[Guest Yoda]

i've got 2540 on rb25.

yes, 4500, it kicks in.

1st gear, 2nd gear will spin, rain hail or shine (255's on rear).

getting camber adjusted next week for more traction. new computer will reduce lag, i believe. i'm running stock injectors though, so maybe less lag with bigger injectors?

goes really well though

i'll try to get it dyno'd while i'm in town and put the sheets up for you guys to look at. i expect it to look like a cliff face...

oh, and i running an f'manage too. definitely more power with it, but not much smoother. need a powerfc or autronics...

[T0nyGTSt]

Greddy E-Manage?

Piggyback should be ok?

T.

[SLY33]

Sydney kid,

like KamikazeR33 im also looking at HKS 25series for my RB25. Would you suggest a 2530 would be quicker than a 2540 on the street due to higher avg power? also how bout the 2535? would the 2530 still be a better option? CHEERS!

---> ahh just seen you answered in my Hks Gt2530/2535 thread, thanks, you might wanna check it out kamikazeR33.

[Guest Yoda]

have just been told i can expect 2540 to come in up to 1500 rpm lower with powerfc. thats about 3000, very acceptable...

[Guest INASNT]

Originally posted by Yoda

have just been told i can expect 2540 to come in up to 1500 rpm lower with powerfc. thats about 3000, very acceptable...

for it to come in earlier u will have to get different cams and adj cam gears but then u will sacrifice top end!

i still dont see the 2540 make full boost by 3000rpm.

[PRO_32]

how bout the 2530 on an rb20 what kinda output would i be looking at I would'nt mind sacrificing a bit of MAx power for torque as that would probably make it quicker on the street anyway

cheers

[Guest Yoda]

prolly not full. i'll have to find out...

[Guest INASNT]

2530 is a very good street turbo for any rb engine!

[SLY33]

Originally posted by PRO_32

how bout the 2530 on an rb20 what kinda output would i be looking at I would'nt mind sacrificing a bit of MAx power for torque as that would probably make it quicker on the street anyway

cheers

Ive been researching the 2530's like crazy coz im getting one soon, sydneykid has been very helpful in providing info!

2530 on an RB20:- 220rwkw at 1.1bar boost.

sydneykid tells me 2530 on RB25 = 230rwkw at 1.1bar.

Not huge numbers by dyno comp standards, but with fat torque from very usable levels, should make a damn quick street car that wont leave you hanging around waiting for the power to kick in.

(there seem to have been quite a few threads on HKS GT series stuff lately!)

So, GT2530 on RB20 or 25 with 220+rwkw should be easy 12's, with better than stock drivability (with well tuned ECU), what more would ya want from a street car!?