4350 replies to this topic

[chris_uk]

Whats the easiest way of monitoring it?

[Exmantaa]

Some kind of OBD reader to scan the IAT value, but think OpCom can log the parameters and store in a csv file.

[chris_uk]

Could a scangauge monitor it you think?

[Exmantaa]

Real time it can off course, but not sure on logging capability of the Scangauge II. A bluetooth OBD reader and some Smartphone app are probably more capable...

[siztenboots]

anything that will raise temperatures in the cylinder will help promote detonation

 

so ;

very lean air/fuel ratios

poor charge cooling

compression of the air molecules from forced induction

poor heat dissipation through the cooling system ( coolant , oil , exhaust )

 

[chris_uk]

I know the scangauge can log certain things like max rpm, mog, mph etc, i wonder if you can do the same for iat even if it is just a max reading.

[NickB787]

Think it does iat

[fezzasus]

Keep in mind that anything plugged into the OBD port on the Z22SE ecu can introduce a delay in acceleration, so don't monitor it during anything important!

[siztenboots]

set the SG to display the same data on all four buttons , this will reduce the amount of comms , plus 4x update speed. In the background the SG is also requesting lots of other variables which the ECU has to switch modes to access.

[Exmantaa]

   You don't need to datalog everytime. Once you see the IAT reaching 80+*C during a spirited practice session, you know you have some serious cooling issues...

[siztenboots]

once Mike knows the best cool down lap strategy , this mean keeping speed up through the rads and might need 2 laps , waiting for temps to drop to nominal , even running the heater helps

[Exmantaa]

Some measurements from our German colleagues:

 

Letzthin auf der Rennstrecke hatte ich nach 3-4 Runden folgende Werte gemessen (Harrop + 75mm/2.95" pulley): Rücklauftemperatur des Wassers (Ausgang Laminovas ) 60 Grad und 95 Grad Lufttemperatur!!! Trotz Thermal-Gasket und Dual Pass Endplatte. Ich persönlich vermute eher, dass die Laminovas total überfordert sind (unterdimensioniert).

 

 

So he reaches that after 3 to 4 laps on the track...

(My mate's harrop has a 80mm/3.15" pulley fitted and came to 89*C. He is now testing with water injection...)  

 

 

[smiley]

(My mate's harrop has a 80mm/3.15" pulley fitted and came to 89*C. He is now testing with water injection...)  

 

I think there is no escaping from water injection, as long as the laminova design is as it is right now.

[Exmantaa]

Working on that last part... (very slowly)

[smiley]

Working on that last part... (very slowly)

 

You keeping an eye on Thomasses longcore design, or you have plans of your own?

[siztenboots]

can you refit SC so the pulley is where the power steering pulley would be, and gain more space to package a chargecooler between the SC and manifold

[Exmantaa]

 

Working on that last part... (very slowly)

 

You keeping an eye on Thomasses longcore design, or you have plans of your own?

 

 

I gave him the adress where he bought that longcore...     

 

 

can you refit SC so the pulley is where the power steering pulley would be, and gain more space to package a chargecooler between the SC and manifold

 

Refitting the SC lower would be optimal, but very tricky for packaging (oil filter housing) and lots of custom fabrication. It's talked about here before, but easiest option is to relocate the (smaller) alternator to a lower (AC pump) position and use the gained space for longer manifold cores....

Or somehow cramp a 5th/6th core into the short mani design...

 

Simple to think it out, but fabrication of such manifold it is something else. Not much faundry's here in NL to help me out...

Edited by Exmantaa, 11 September 2013 - 12:28 PM.

[chris_uk]

Whats wrong with just lifting the charger up and putting another charge cooler sandwiched inbetween?

[Exmantaa]

Resistance... 

But maybe it works good enough.

Edited by Exmantaa, 11 September 2013 - 12:39 PM.

[chris_uk]

So if the cargecooler has decent enough flow there shouldnt be an issue? I was thinking the belt might be too long and flap about unless i fit another tensioner.