rotarymandan

iTrader: (15)

What are the differences between these turbos? Are the 99 twins that much better than the 93 stock twins. Also are BNR stage 3's really worth the $2500 or whatever vs just going single? What are your opinions?

polyfc

99specs are smaller but more efficient and yield a 20hp increase over stock at 10 psi

Wargasm

What is your rear wheel HP goal?

Up to around 325 rwhp or so, I'd just use the stock twins, used-condition stock twins, 99 specs... whatever is the cheapest.

If you want 350+, quit screwing around and get a single turbo. Much simpler, etc.

turBRO240

iTrader: (1)

99spec and 93... belive me you wont notice a differnce physical wise... i mean the acual turbos...... people just go for the 99spec because its semi-new.... well basically not 12+years old

im a real fan of the BNRs.... you can run nonseq which i think is great beacause you dont have the hassel of the rats nest (all the vac lines and solenoids under the intake manifold) but you get boost from 2500-8000rpm....... i look at is like best of both worlds of a single and twins

single... as far as the complications of the twin turbo system (especially the RX7s) is eliminated... although your faced with complications of a single.

280-320rwhp - 99spec rebuilds
350-500rwhp - BNRs
350-700rwhp+ - single

dradon03

iTrader: (2)

While the re-construction of my car is going on I couldn't help but think that if the budget was there it would be so much more simple to have a single instead of the twin turbo mess.

Personally I would go for an Aspec GT3574 if you want something relatively cheap and that can move some air. I think that the GT3574 kit is around the same price as BNR's and you eliminate all that twin turbo mess, much easier trouble shooting and weighs less.

NissanConvert

iTrader: (1)

they're just waiting for someone to make 400rwhp on sequential bnrs. I've had non-sequentials since i've owned my car. I have yet to ride or drive a sequential car- but i've noticed that w/ sequentials i can have boost where i don't now. Not to mention that a sequential car at 4500rpm is running non-sequential.

This all baffles me. I intend to go BNR when the financial aspect comes into alignment.

davesan1

iTrader: (4)

Anyone have any comments ref. the smog check impact of replacing twins on a '93 with '99 twins? I live in SCAL and am paranoid about impacting my ability to consistantly pass the relatively severe smog check here.

Assurances or otherwise welcome

Thanks

dradon03

iTrader: (2)

Unless your inspectors first name is Isami (or Isumi I never remember) and last name is Amemiya than it won't make a difference. Visually they are the same, it is not as if it was a T51R in there....

About the guy who is waiting for BNR's to be financially viable I ask why? I mean why wait for twins? Mentally, I still don't understand why people prefer twins over a single?

SPICcnmGT

Mostly because they are cheaper and/or easier to install/upgrade.

Now if you want to run non-seq I don't see why you would buy twins.

rynberg

Please do a SEARCH!

You are not going to get boost at 2500 rpm from BNRs running non-sequentially, LOL.