BB DET upgrades and advice?

se-rguy98 · Jun 6th, 2003, 11:02 PM

Ok I am a new member and I have come to the turbo gurus for some advice...
I got a 98 200sx SE-R. It has a BB DET in it running, stock boost 7psi, Hotshot fmic, JWT ECU, JWT S3 cams, stock fuel injectors, stock MAFS, it dyno @ 209whp/ and 194 flbs torque, I want to know how much more boost I can run off the stock injectors and MAF, before there is trouble..
Also my goal is for about 235 to 245 whp, I will be happy with that. But will my current set up get to that goal by just turning up the boost or do I need upgrades?
Also I was wondering would it be better to get a GTI-R man, and t-28 turbo upgrade instead? if I can get to that buy turning up the boost I will just do that, but if I need to upgrade to the other turbo can someone please give me a parts list for it.
Thanks for your help...

niss506 · Jun 7th, 2003, 11:25 PM

I'm running 15 psi of boost in a stock JDM sr20, and I'm not having trouble with this setup, (I just have the s-afc, extra injector, fuel regulator, extra fuel pump, among other things), I just keep checking the air/fuel ratio all the time, and keep the mixture as rich as possible, so I don´t see why in an sr20det which is design to be a turbocharged engine, you can reach 15 psi of boost or more, with just simple bolt-ons, (just my opinion)

HKS20DET · Jun 9th, 2003, 06:08 PM

with the T28 setup, bigger injectors, and MAF you can be around 280hp

T28 parts

SE-RtinMI · Jun 14th, 2003, 08:53 PM

Keep the setup you have and do this. Get the Ecu reprogrammed for 4bar of fuel with the 370's (that will flow upwards of 290whp or more) You'll also need a Bored MAF from Andreas (60$) he also sells the Nismo FPR to set the Fuel pressure to 4 bar (you'll need at least a mechanical FP gauge to set it). Replace the fuel pump with a Walbro 255lph pump and turn the boost to 12psi when your feeling frisky. You can take the turbo up to 13- 14 psi on teh dyno but I wouldn't run it often.... LOL short life turbo....Guarentee you this setup will hit 245whp with minor tuning.

SleepERr · Jun 15th, 2003, 10:34 AM

Get a VPC and a Field fuel controller and a larger fuel pump. I know they are expensive, but its one of the best mods you can make. You will feel a world of difference with the VPC alone, I promise.

Niceguy · Jun 24th, 2003, 10:24 PM

I agree. JWT setup with 4 BAR fuel. FPR set to 4 BAR, bored MAF, and up the boost. Cheap horsepower.

kesi24 · Jun 27th, 2003, 07:58 AM

You can run up tp 250 whp on 3 bar 370 cc injectors....

Joel · Jun 29th, 2003, 08:01 PM

A bored MAF? Why not just get a z32 AFM? Or is the price difference large?

Stock FPR is good for 300rwhp

Jul 12th, 2003, 04:35 PM

"Get a VPC and a Field fuel controller"

He has a Turbo Nissan..not a Toyota. Stick with a JWT ECU for all your fueling needs...MAYBE an AFC if you or someone you know has knowledge on how to tune it.