freq

I guess they're no longer a sponsor, maybe they never were but they had a thread in FI when they released their oil cooler.

Release thread:
https://www.s2ki.com/forums/s2000-mo...ooler-1160402/

Member Profile:
https://www.s2ki.com/forums/members/...racing-170780/

cahooa

Interesting...in that release thread the MotoIQ guy says he had installed it but they never came out with an article on it. That was nearly a year ago. Makes me wonder if he ran into the same issue but then they decided not to post a negative review.

@spdracerut what is the story on this? (Can you tag people on the forum?)

sirbikealot7

Met a guy at the track who was also having lower oil pressure, and the car wouldn't go into vtec. Checked the solenoid, screen, fresh oil etc. Combo rad was the only thing that changed.

s2000ellier

great question, are people shills or not

haga888

I just confirmed with another local that has the dual rad. He had the same issues and disconnected the oil cooler. Is there anyone that this worked for?

d1000rr

Well looks like I'll be running a separate oil cooler instead.

cahooa

Sounds like they need to issue a stop sale and recall.

freq

See if they'll still sell you one.

wtohargan

Here's my latest (and probably last) update.

I sent JR the following note:
I tried 10w40 Motul 300V over the weekend and got the same result [threw the P2646 code]. Note, this does not have to be taken on track for it to throw the P2646 code, this happens after one or two runs through the gears on the highway. This car has always shown good oil pressure so I don’t believe there is anything wrong with the oil pump at 70,000 miles. I believe there is either a defect in the oil cooler/plumbing, or there is a flaw in your design.

This was their reply:
From our testing, we have found S2000s to have low oil pressure as they wear and the pumps get older. If you test your oil pressure at idle without the cooler, you are supposed to have a minimum 35psi. It is safe to say you are probably closer to 18-20psi. In these cases, we suggest running heavier weight, 10w-50 to 10w-60 depending on the wear of the engine. We have found no problems with the coolers and plumbing. In fact, just this weekend our cooler was used in 100ºF heat at Auto Club Speedway for the Global Time Attack. Car operated perfectly the entire time.

I have decided to keep the radiator installed and disconnect the oil cooler lines – mainly due to the $$$ investment I have in installation and trouble shooting. However, I was able to reattach my oil pressure sending switch and was able to observe pressures both with and without the oil cooler.

• Hot idle (@210 degrees oil temp) without the cooler varied between 18 – 20 lb. With the cooler it dropped to 6 – 8 lb.
• 1,000 to 4,000 rpm without the cooler 30 – 80 lb. With the cooler 10 – 40 lb.
• 4,000 to 5,000 rpm without the cooler 80 – 90 lb. With the cooler 43 lb. max. The oil pressure essentially topped out at @40 lb. at 4,000 rpm with the cooler hooked up. (Out of concern for the engine, I did not take the rpms higher but from previous experience I know it will throw the P2646 code due to low oil pressure in VTEC)

red_dragon128

Originally I was debating between this and the SakeBomb Oil cooler - glad I chose the SBG setup. I've been running the stock radiator and just put in my order for their Mr. Sideways cross flow radiator to go along with the cooler. I'm convinced now I made the right choice. Zero issues with their air to water oil cooler setup on track and I daily my car.