Tuning Prins Vsi

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200sxlpg
Posts: 4
Joined: Sun Sep 19, 2010 10:07 pm
LPG System: prins vsi
Car: 200sx S14A

Tuning Prins Vsi

Post by 200sxlpg » Sun Sep 19, 2010 10:23 pm

Hi, I got a Prins Vsi LPG system installed on my Nissan 200sx. I'm looking to upgrade the turbo and fit larger injectors to the car.

My question is can the system cope with the increased power, if not can it be adapted to cope?
I'm running brown injectors on the Prins and my car will be running 555's and around 360bhp.

mak-uk
Posts: 288
Joined: Mon Sep 03, 2007 8:48 pm
LPG System: Prins VSI
Car: BMW 540iA Sport
Location: All over the UK

Re: Tuning Prins Vsi

Post by mak-uk » Tue Sep 21, 2010 12:19 am

Hi

Is that a 4 cylinder or 6? What are 555's?

I expect you will need two reducers for a start.
Mak
Site Owner
2001 BMW 540i Auto Sport Saloon
~300 BHP; ~320 ft/lbs, Prins VSI system

200sxlpg
Posts: 4
Joined: Sun Sep 19, 2010 10:07 pm
LPG System: prins vsi
Car: 200sx S14A

Re: Tuning Prins Vsi

Post by 200sxlpg » Tue Sep 21, 2010 10:33 pm

Hi, its a 4cyl and the 555s are in injectors. Going from 280cc to 555cc

mak-uk
Posts: 288
Joined: Mon Sep 03, 2007 8:48 pm
LPG System: Prins VSI
Car: BMW 540iA Sport
Location: All over the UK

Re: Tuning Prins Vsi

Post by mak-uk » Wed Sep 22, 2010 10:00 pm

For a 4 cylinder you will probably need to have twin injectors.. therefore, a V8 system, as well as two reducers and then obviously the associated mapping of the VSI system. Oh and it would need to be getting sufficient fuel from the LPG tank too.
Mak
Site Owner
2001 BMW 540i Auto Sport Saloon
~300 BHP; ~320 ft/lbs, Prins VSI system

200sxlpg
Posts: 4
Joined: Sun Sep 19, 2010 10:07 pm
LPG System: prins vsi
Car: 200sx S14A

Re: Tuning Prins Vsi

Post by 200sxlpg » Thu Sep 23, 2010 6:28 pm

Thanks for the reply.

Sounds expensive, might have to re think this one.

mak-uk
Posts: 288
Joined: Mon Sep 03, 2007 8:48 pm
LPG System: Prins VSI
Car: BMW 540iA Sport
Location: All over the UK

Re: Tuning Prins Vsi

Post by mak-uk » Thu Oct 14, 2010 10:31 am

True, but worth doing if you want the LPG side to run properly and at all rev-ranges (and to avoid any engine damage whilst on LPG and it cannot cope and runs lean).

Report back with what you decide to do.
Mak
Site Owner
2001 BMW 540i Auto Sport Saloon
~300 BHP; ~320 ft/lbs, Prins VSI system

200sxlpg
Posts: 4
Joined: Sun Sep 19, 2010 10:07 pm
LPG System: prins vsi
Car: 200sx S14A

Re: Tuning Prins Vsi

Post by 200sxlpg » Sat Apr 23, 2011 7:47 pm

Well she's now running around 360bhp on petrol, just need to get the LPG sorted.

I've set the actuator really low so when the boost controller is off the LPG should be able to cope.

Options

1. tune it myself
I've seen the interfaces of ebay for the prins, problem is my laptop has only usb connections. Pretty baffled looking at the various connections, so can someone point me in the right direction?

2. F1 motorsport in Blackburn (i think)
Spoke to the regarding the system i'm using, sounds expensive but they think they can do it.


Only dilemma I have is an up coming trip to the ring so needs doing shortly. I'd like to have a go myself, (couple of friends who can map) not to bothered in running full power just to drive around in. Currently doing 150 miles to £45 :roll:

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