Intercooler water pressure TEST: with and with-out Groco strainer

[jpt7779]

Weather awesome: 68-72 degrees, Baro Press 30.00, Humidity 14%, Dew Point 21 degrees, RAD 1285, HP 102%

From another Intercooler thread there were comments about water pressure with and with out a Groco strainer. So I set out to find the results for myself with a stock IC configuration.

The picture shows the T-fitting and gauge used right before and inline with the lower IC intake.

I went through an entire tank of fuel and another ¼ tank testing this and a new V-Tech tune.

Ski: 2010 RXT-X 260 with stock pump, 87mm venturi, 8800 rpm, 81.5 mph.

Results

Groco strainer installed in-line to T-fitting and IC, NO 90 degree bends, freshly cleaned

RPM 5000 – 5 psi
RPM 7000 – 10 psi
RPM 8000 – 15 psi
RPM 8800 – 18 psi

NO strainer – straight from iBR connection to T-fitting and IC

RPM 5000 – 5 psi
RPM 7000 – 10 psi
RPM 8000 – 15 psi
RPM 8800 – 18 psi

The bottom line is I saw NO difference that I could read on the gauge while running at speed! I will try and get a 50 psi gauge that may help reading more detail. I also will see if there is any difference at all with a 83mm venturi vice the 87mm used today.

With a stock IC configuration and a Groco strainer there appears to be no issue at all with pressure loss. Maybe with the really high pressure, high efficiency IC’s being used and tested, there may a drop in pressure from a clean Groco strainer. Clearly at this level of mods, I just didn’t see any difference!

[TDR]

Good write up!

[lolzer]

Very informative, thank you.

[beerdart]

Thanks for the testing.
Maybe the differences your are seeing is I think the FL boys testing is using a Yamaha pump. The Doo pump is more of a high volume low PSI compared to the Yamaha low volume high PSI pump for the cooling loop.

[beerdart]

Thanks for the testing.
Maybe the differences your seeing is I think the FL boys testing is using a Yamaha pump. The Doo pump is more of a high volume low PSI compared to the Yamaha low volume high PSI pump for the cooling loop.

[stuckmoto]

Thanks! I was wondering what the PSI was off the pump.

[stuckmoto]

Any more issues with oil leaks? <--- side topic

[shrabber]

Very Nice thanbks for the Info

[Duke]

Thats strange due to the fact Vsec1 and I just tested the groco strainers on his ski and saw close to a 50% drop with strainer installed verses removed.

Not questioning yor data but simply don't understand what we are doing so differently.

[meeper]

Not questioning yor data but simply don't understand what we are doing so differently.

something right....