My Quadra

[Andyquadra]

didnt see the boost figures, my bad. Andy, I dont wanna be an ars but that power is very close to the GT28RS max limits.

Your right Jo, it is on the limit of the GT28RS, but its perfect for this setup and application. The boost IS controlled by the motec and its meant to peak at 24psi to get the most out of the turbo then to drop off to 21.6-22 for the rest of the rev range. And you'll probably find the second rise is the cam coming in, anyway to have over 300ftlb from 2.6-5.3K is one hell of a power band

 

[MakeEverything]

The boost IS controlled by the motec

Clever stuff, and i stand corrected then!!. So does it have an electronic solenoid on the turbo then? Missed that when i looked, but then it was stuffed in the back of your car!!! :dizzy:

---------- Post added at 02:41 PM ---------- Previous post was at 028 PM ----------

anyway to have over 300ftlb from 2.6-5.3K is one hell of a power band

Absolutely, good effort. Id be happy with that!!
If i had the money, id be asking you to build me one!!!

 

[Andyquadra]

Clever stuff, and i stand corrected then!!. So does it have an electronic solenoid on the turbo then?

the motec controls a boost solenoid that's a bleed valve

 

[MakeEverything]

the motec controls a boost solenoid that's a bleed valve

Clever, so effectively an in-built boost controller as well. Megasquirt doesnt have that function, but does have a function for nitrous staged injection.

 

[Andyquadra]

Clever, so effectively an in-built boost controller as well. Megasquirt doesnt have that function, but does have a function for nitrous staged injection.

it probably does, its only a 12v feed and the ecu controls the earth

 

[MakeEverything]

it probably does, its only a 12v feed and the ecu controls the earth

Theres nowhere to adjust the "Boost" value, so i dont think there is on my particular version.

 

[ratmangta]

It should have some control outputs that just need setting up ?

 

[MakeEverything]

It should have some control outputs that just need setting up ?

Theres a control output for Nitrous or water injection, but ive got plans for these at a later date....

 

[Lee_R21Turbo]

Optimal power is achieved by reaching Stoich consistently throughout the power curve

Dont do that when you come to map your 21T engine though mate. If you ran Stoich on boost the engine would probably last all of 5 seconds, thats far too lean for on boost fueling!!!

Ideally you want to be running around 11.8-12 ish on boost rather than 14.7 (stoich).

 

[DaveL485]

Dont do that when you come to map your 21T engine though mate. If you ran Stoich on boost the engine would probably last all of 5 seconds, thats far too lean for on boost fueling!!!

Ideally you want to be running around 11.8-12 ish on boost rather than 14.7 (stoich).

Target AFR in powerband has always been 12 for us....

 

[-Jo-]

Theres a control output for Nitrous or water injection, but ive got plans for these at a later date....

ive got the old megasquirter (!) from Craig and that one got the Nitrous,waterinjection and launchcontrol option.

---------- Post added at 10:52 PM ---------- Previous post was at 10:51 PM ----------

Target AFR in powerband has always been 12 for us....

low revs: 12.3
hi revs, full boost: 11.8

 

[MakeEverything]

That'll be a V3 then. Mine is a V2.2 with daughter board V3 upgrade, so still doesnt have the full functionality as the V3.

 

[jacw]

The biggest thank you!!!!!!!!!!!!!!!

"nice anyway,who ever owns that will be a very happy person,"

You're right, a VERY HAPPY PERSON!

THANKS Andy for ALL your hard work & perserverence.

Cheers, John.

 

[Andyquadra]

"nice anyway,who ever owns that will be a very happy person,"

You're right, a VERY HAPPY PERSON!

THANKS Andy for ALL your hard work & perseverance.

Cheers, John.

Any time John its a pleasure, we got there in the end :nod:
Can't wait to see it in the car and out doing what its built for :first::car:

 

[Andyquadra]

Just worked it out 409bhp and 463ftlb per ton :flame::flame::rockon:

 

[administrator]

That will be quite adequate then ..

 

[MakeEverything]

Happy days.

 

[1bob]

In the spec sheet for the motor it lists 46.6mm Inlet valves and uprated valve springs.

Are the valves from the PRV V6 or a special item?
What are the valve springs and what sort of cost are we talking?

It also lists a 200mm Sachs clutch.
Is this the standard 21T size because I thought they were around 230mm?
Again what sort of price do these go for?

cheers

 

[-Jo-]

i'll guess you have a 200 mm twin plate clutch. Thats the max size for twins. Mine is custom made by helix, clutchassembly + custom flywheel, quoted for 2700 € all in (development-labour-materials). If you want one now it will be cheaper because the drawing/program exists.

 

[Andyquadra]

In the spec sheet for the motor it lists 46.6mm Inlet valves and uprated valve springs.

Are the valves from the PRV V6 or a special item?
What are the valve springs and what sort of cost are we talking?

It also lists a 200mm Sachs clutch.
Is this the standard 21T size because I thought they were around 230mm?
Again what sort of price do these go for?

cheers

Yes its a 200mm twin plate, and your right, the standard 21t is 230mm. The fly wheel to match the clutch is an off the shelf item and was about ?240ish, but I don't know how much the clutch was.
The valves and springs where supplied by Ferry developments, so I couldn't tell you where they are from.

Andy