ok so I bought my sierra cosworth from a chap that knew nothing about it,


I was given a folder and there are recipts for the following
bosch 803s and chip -32 actuator.


its dynod at 243bhp and running 9psi I thought with 803s and chip it should be able to run 15psi and be able to make 330+


tempted to get a boost controller and give it the 15psi and see how she goes.


thought plz ?


it has t 34+big intercooler so no worries about making the boost or cooling.

 

I would take it to someone and get it mapped properly instead of winding up the boost. You need the fuelling correct along with timing. I would get it live mapped and end up with a more responsive and faster car.

 

Great advice greens can fuel 350 bhp easy boost holding 23psi.


Get it set up and checked.

 

I dident think you could remap a l6 ?

 

Take it to a specialist.

 

You can bud, weber mappers are Tony @ TurboSystems , MSD, NMS, all very good.

Where in the country are you??

 

You can live map the L6 no problem at all mate. It looks something like this:

 

Stu, When you was mapping the crystal blue saff, was James in the car???


Regards


Paul

 

ensure chip is of good known origin[msd,collins etc]
check basic engine is up to coping with the upgrade
make sure fuel pump is getting good power supply[nice fresh pump harness helps]-new quality fuel filter and good strong pump
set fuel pressure to chip providers spec[normally standard]
make sure plugs/leads/cap/sensors all a1[plus all connections]
make sure all hoses/clips pipework secure -particularly fpr/actuator related
set co to chip providers spec
set boost to level recommended by chip provider

would recommend not held at load for long untill afr/det checked on road or dyno

people wonder why a tune up /upgrade costs a few quid and they put in a car needing lots of work before any upgrades begin...

9 psi isnt a lot of boost on greens...most run 3x that it would seem
when i firs had cossies in late 80s/early 90s stage 3 was 21psi

 

Tony, do you remember the old stg 2 light green conversion. For about 290 bhp.

 

yes thats how we normally do it

 

lol James it just looked odd. Seemed like Stu was increasing throttle with his left hand.

All good stuff eh

Paul

 

yes i do-that was when stage 1 was normally a massive 12-14psi lol
i think it was a "safe" option as generic mapping was in its infancy then

for 5 turbos we just used to wind the boost up using the actuator and use pallet banding to help hold the intercooler together[plus unplug the boost protection sensor]-as far as checking the fuelling well erm...we didnt in those days

 

Its come a long way since those days but its still easy to kill a cossie if set up wrong.

Theres was a fella around here had many cossies that every engine had blown. He bragged his chip that he used was a cossie killer.!

Muppet....

 

I assume you mean this one Paul?

Basically, in that mode, I tell the dyno what revs it should allow the engine to accelerate to and then I map that area. When im done, I tell the dyno to allow a rev increase of the engine so i can map the next site.

James in this video just holds a steady throttle to control the load site. IE: James adjusts throttle a little to maintain between 7 and 9 psi of boost (5th red box along on the screen) while I also control the dyno in order to ensure the engine is stopped at the RPM site i want it at. So every time I press the up button, the dyno allows the engine to increase rpm by anything I want from 10rpm to 1000rpm. (Set to 100rpm in that video so 3 presses is 300rpm)

The load and RPM control on our dyno is truly awesome and makes mapping an absolute breeze.

 

Cheers mate that clears that up. Very good bit of kit you have there.

Whats the highest bhp so far?

Regards
Paul

 

Thanks lads will have to see who in Ireland has the right settup to map it