Ready To Put In 272 Cams. What Supporting Mods?

[r3240sx]

$2000 ?

HKS 2530's are cheap as chips. $1500 second hand, and a darn sight better than the RB25 turbo.

Its just that the RB25 one is cheap, the 2530 is the BEST (and makes more outright power with resonable midrage)

The 2510 is $1760, the 2530 is $2200 according to hksusa.com. I personally havent bought a second hand turbo... My roommate made 260 whp with an rb25 turbo that he bought for $150 usd. It seems people in the dyno threads are making an easy 200rwkw with an rb25 turbo, and hardly any more with the gt2530. All I'm saying is that I'll take the couple hundred rpm difference in spool, and 15-30 hp difference in the peak, and save $2000 for a worth while upgrade.

I use a journal bearring garrett t3, 60 trim, .48 ar exhaust, .60 ar compressor thats rated at 350hp. I'd estimate I'm at 270 hp or so, at 16 psi. Judging by the specs listed on HKS's website, my turbo is similar sized to the gt2530. The lag is more than managable, full boost hitting by 4 or sooner. I bought this turbo new from a friend who never installed it, and if the deal wasnt there, I would have gone for a much larger t3/t04e. I'll take the extra lag for more power, because with the amount of power I'm making, I'm kind of dissapointed.

If I were you, I'd put the rb25 turbo on and drive it for a while, and decide which sort of powerband you prefer. If you like torque, driveability, power in the low end, keep you stock cams, and use the rb25/gt2510/2530. If you prefer crazy horsepower, keep those 272's, save money, and plan a larger build, with a larger turbo.

[335]

The 2510 is $1760, the 2530 is $2200 according to hksusa.com. I personally havent bought a second hand turbo... My roommate made 260 whp with an rb25 turbo that he bought for $150 usd. It seems people in the dyno threads are making an easy 200rwkw with an rb25 turbo, and hardly any more with the gt2530. All I'm saying is that I'll take the couple hundred rpm difference in spool, and 15-30 hp difference in the peak, and save $2000 for a worth while upgrade.

I use a journal bearring garrett t3, 60 trim, .48 ar exhaust, .60 ar compressor thats rated at 350hp. I'd estimate I'm at 270 hp or so, at 16 psi. Judging by the specs listed on HKS's website, my turbo is similar sized to the gt2530. The lag is more than managable, full boost hitting by 4 or sooner. I bought this turbo new from a friend who never installed it, and if the deal wasnt there, I would have gone for a much larger t3/t04e. I'll take the extra lag for more power, because with the amount of power I'm making, I'm kind of dissapointed.

If I were you, I'd put the rb25 turbo on and drive it for a while, and decide which sort of powerband you prefer. If you like torque, driveability, power in the low end, keep you stock cams, and use the rb25/gt2510/2530. If you prefer crazy horsepower, keep those 272's, save money, and plan a larger build, with a larger turbo.

Cool thanks

I will think about this. Oh, it seems I get different information on tuning. Some people say tune with a RB25 turbo, so say not necessary right away. Which is it?

Thanks

[r3240sx]

Cool thanks

I will think about this. Oh, it seems I get different information on tuning. Some people say tune with a RB25 turbo, so say not necessary right away. Which is it?

Thanks

You need to tune with any setup for it to work to its potential. I personally would add fuel somehow for safety, at the very least, with and rb25 turbo. When my roommate had his 260 whp tune, I believe he only had an SAFC. Seems like that or an adjustable fuel pressure regulator would be sufficient for a small turbo like that.

[shanef]

if u had an sr20 then theyd be sweet, but not on an rb20

sell them and get some 256's (tomei poncams)