CBR600RR oil cooler on 400ex

[krt400ex]

hey guys, my 400 is dying of overheating the past couple of times i took it out. i am going to put scoops on it, and i know that you can do a cbr600 oil cooler. my question is, has anyone ever done this? tips and pics would be helpful. the other thing is, can i keep the stock oil cooler on there as well with the cbr oil cooler?

thanks in advance for the advice

what oil are you running?

[krt400ex]

bel-ray thumper semi-synthetic 20w-50

[krt400ex]

i think its the combo of the timing key and tight trails. my old riding area was much more open with much faster riding, so i had no issues...with my new riding area its alot of 2-3rd gear stuff so it gets alot hotter.

[DementeD]

havent heard of the cbr600...definitely the 1100 though...also look into a nice spal fan..heard that works even better then upgrading the cooler

hmm what do you consider overheating though? did it start to smoke because the oil got so hot? headers glowing red? i just installed the key and switched to fully synthetic oil. I havent got a chnace to ride it hard for a good amount of time yet since the installation so I havent noticed more heat.

[krt400ex]

it was 85 degrees and humid yesterday and i was burning my leg with jeans...and i wasnt touching the engine or headpipe...thats how hot it got.

mine smokes little bit from time to time anyway cuz i got like 350 hrs or so on one build and i ride it hard...lol time for a new top end

so i should be prepared to see my temperature sky rocket now with the key? 90 - 100 degrees out this time of the year, fully synthetic 15w-50 oil.

[blankenship]

big_bore24 im pretty sure correct me is im wrong but he had a great dual oil cooler kit with a transmission cooler from your local parts store you can search the thread "staying cool in the summer heat" I posted it a while back it has pictures and everthing i have a oil cooler on the way probibly goin to install next week i will post pics

[Ruby Soho]

it can't be that hot.. ive ridden my 440 in tight trails all day long in 95 degree weather in the hot sun. and it never overheated or anything once:confused:

[gojk]

Have you checked your jetting? If you are lean it will deff run a lot hotter.

[krt400ex]

Originally posted by gojk
Have you checked your jetting? If you are lean it will deff run a lot hotter.


not lean. been running it like this for a yr...it just has been running much hotter since i have been riding tighter trails.

blankenship-thnx

i still doubt this thing can be overheating unless you were reving it in 1st gear for a half hour or so.

[mooseracerX]

KRT I think its the oil. haha Mine gets really hot too. I'm not sure what the temp was here on Saturday but after 4 or 5 laps you could feel and see the heat 2' away. I have scoops and I can't tell if they do anything. My dad says if you mix some alcohol gas like 50 50 it would cool it down.

[krt400ex]

Originally posted by mooseracerX
KRT I think its the oil. haha Mine gets really hot too. I'm not sure what the temp was here on Saturday but after 4 or 5 laps you could feel and see the heat 2' away. I have scoops and I can't tell if they do anything. My dad says if you mix some alcohol gas like 50 50 it would cool it down.


usually thicker oil keeps it cooler though. i dont think that is what it is...and it isnt too old cuz i change it very often

[mooseracerX]

I was kinda disappointed with this oil. I changed to it from some cheap 10w40 or what ever and expected big temp drops and I didn't get them.

[krt400ex]

Originally posted by FoxHondaRider
i still doubt this thing can be overheating unless you were reving it in 1st gear for a half hour or so.


half the time i am going from 2nd gear through the revs and then touching third and going back down...that wont provide enough air by the engine to keep it cool. thats why i need a better oil cooler with more oil capacity.

[Ruby Soho]

it also helps to not rev the chit out of it. the 400ex doesnt make power in high RPM's so theres no point in revving it to the moon. if you keep low rpm, and insteat of flying in 2nd, click in 3rd and cruise so keep them down and get more air flow.

Originally posted by Ruby Soho
it also helps to not rev the chit out of it. the 400ex doesnt make power in high RPM's so theres no point in revving it to the moon. if you keep low rpm, and insteat of flying in 2nd, click in 3rd and cruise so keep them down and get more air flow.

thats what I do, if its real tight and I need the power of 2nd I just keep it in 2nd mid to sometimes high RPM and if its not too twisty and I dont need to stop alot for trees I just put it in 3rd and haul... I've done 4th and 5th in the trails too its pretty scary when your that close to trees and going over whoops or bumps going that fast. Now with the sparks timing key 3rd gear will be where its at I wont bog down like i did before and I will have the power to probally stay in 3rd gear. 1st gear is only good for starting, loading or climboing over a tree or up a drop off

[Wheelie]

I ran the CBR cooler all last season, and I've been running a SPAL fan with the stock cooler this season.

The fan does a better job of keeping the engine cool than the CBR cooler did. The fan only draws 1.9amps as well. I've ran the fan and headlights at the same time, the lights don't go dim, and I haven't had any problems with the battery going dead either.

Another plus of the fan is leaving it running when the engine is shut off. It also helps cylinder head temps quite a bit.

Arguably the best $57 I've spent on my quad to date.

[krt400ex]

Originally posted by Ruby Soho
it also helps to not rev the chit out of it. the 400ex doesnt make power in high RPM's so theres no point in revving it to the moon. if you keep low rpm, and insteat of flying in 2nd, click in 3rd and cruise so keep them down and get more air flow.

im sorry, but i have been riding for a loooong time now, and i do know how to ride it. i run the whole powerband to keep from shifting as often, and it does make plenty in the top end to handle it

[Chino886]

Originally posted by krt400ex
im sorry, but i have been riding for a loooong time now, and i do know how to ride it. i run the whole powerband to keep from shifting as often, and it does make plenty in the top end to handle it

KRT,

I have to disagree, the 400EX motor does not make crap for power in the upper RPMs. If you do not shift by 8K RPMs, you are loosing power. I do not discredit the fact that you have been riding for a while, but the dyno run below proves my point.

Chino

[Duke Nukem]

Originally posted by Chino886
KRT,

I have to disagree, the 400EX motor does not make crap for power in the upper RPMs.



Maybe his motor is setup for high-end power? I know mine makes all it's power up high.

[gojk]

I understand that dyno run, but first of all it says 50+hp. What kind of ex motor is that???

Any modified motor won't the next match the next ones power curve. Also, I think what he is refering to, and I will use your graph as an example, is that he has more power holding a gear for longer and reving to 9 or 10K rather than shifting and dropping to the 5 to 6k range.

[Brauap]

Could you use the stock oil cooler-cbr1100 oil cooler with 4'' Spal fan, Oversized Oil Tank, & Air Shrouds for a 416?

Is it possible to cool it too much? Also, if you have all of that, with sayyyy.... 12:1 would you still need race gas to help cool the engine?

Originally posted by Brauap
Could you use the stock oil cooler-cbr1100 oil cooler with 4'' Spal fan, Oversized Oil Tank, & Air Shrouds for a 416?

that was my original plan for the best cooling method. CBR1100 oil cooler, 4" spal fan, and air scoops. I even made a little collage in paint. Oversized oil tank I did not include in it. There is a secondary oil cooler that taps into te stock oil cooler and the head of the motor which cools the motor by about 40 degrees which is pretty big considering air scoops might do 5-10 degrees. I saw a transmission cooler in advance auto a month ago or so and I took it out of the box and looked at it thinking hmm I bet I could use this for my quad. If you have the money to do it, then why not.

[krt400ex]

Originally posted by Duke Nukem
Maybe his motor is setup for high-end power? I know mine makes all it's power up high.


yoshi pipe opened up the top end alot.

i dont bang it off the rev limiter...ever. because i let it pull through the range doesnt mean i am banging it is off the rev limiter.

so you are saying this spal fan is the way to go then? how complicated is it to hook the thing up? and wut about alot of mud riding? i dont want it to die cuz of water...thats something i ride in alot.

wut about a cbr oil cooler and the fan?

[AnDy7]

Could you just use the fan that's off the 450r?

[krt400ex]

Originally posted by AnDy7
Could you just use the fan that's off the 450r?


that i think is too big for the stock oil cooler

[Wheelie]

The 450R fan is too big. The CBR cooler causes fitament issue with the stock front plastics due to it width (12 inches wide).

The SPAL fan is designed for ATV use, it's waterproof and sealed. I've washed my quad several times, went riding in the rain and have rode in very muddy conditions. The fan works flawlessly.

Hook up is simple. If you know how to wire up a toggle switch and crimp connections, then you can wire this fan. The amperage draw is small enough that no relays are needed, only a toggle switch. I'd recommend using a switch rated for 15amps, just to be safe.

[krt400ex]

Originally posted by Wheelie
The 450R fan is too big. The CBR cooler causes fitament issue with the stock front plastics due to it width (12 inches wide).

The SPAL fan is designed for ATV use, it's waterproof and sealed. I've washed my quad several times, went riding in the rain and have rode in very muddy conditions. The fan works flawlessly.

Hook up is simple. If you know how to wire up a toggle switch and crimp connections, then you can wire this fan. The amperage draw is small enough that no relays are needed, only a toggle switch. I'd recommend using a switch rated for 15amps, just to be safe.


ok, so wut am i looking at total cost? and where can i get a SPAL fan?

[Wheelie]

Contact 08400ex, that's where I got mine. He can quote you a cost.

Check out www.spal-usa.com. They're prices are higher than 08's, but it can give you a general idea of what you're dealing with.

[krt400ex]

kk, thnx a bundle

[sc400ex_rider]

these 2 people have them too.

hi can you get the spal atv 4" puller fan? thx robert
4" Motorcycle/ATV Fan (Push only) (# 30103009)

4" Motorcycle/ATV Fan (Pull only) (# 30103018)

Yes we can, it is a pusher fan and your cost would be $49.95
Yes, we can get the 30103018 as well. Our number is 866-730-7169 and we’re here from 8am to 5pm central time.

************************************************** **

We can do this for $52.00 + shipping
The shipping is $11.00
Our website does not have an e-commerce section. You can view it, www.nobleperformance.net. Our office phone is (317)290-3964.

[bayou boy]

i have a hayabusa cooler i will sell cheap. it is alot bigger than the stocker and will fit with minimum work. i was going to use it on my 416 but never did it. since i got the 450 i really dont ride the 416 much

[brian76708]

Originally posted by bayou boy
i have a hayabusa cooler i will sell cheap. it is alot bigger than the stocker and will fit with minimum work. i was going to use it on my 416 but never did it. since i got the 450 i really dont ride the 416 much

MUST BE NICE

[Wheelie]

A pusher fan will NOT work in this application. The fan must be a puller.

[chayes627]

what are the measurments of the gsxr cooler that you have?

[bayou boy]

i can take some measurments tomorrow and post them

[krt400ex]

Originally posted by bayou boy
i can take some measurments tomorrow and post them


plz do...i might consider doing both if it will work easily

[bayou boy]

the hayabusa cooler is 12 1/8" wide 5 3/16 high and the top bolt holes are 7 1/8" center to center. i was first going to add the cbr 600 cooler as an extra cooler then i decided to eliminate the ex cooler and use the hayabusa cooler instead. needless to say i never did either. this pic shows the difference in the hayabusa and the cbr600 cooler

[krt400ex]

Originally posted by bayou boy
the hayabusa cooler is 12 1/8" wide 5 3/16 high and the top bolt holes are 7 1/8" center to center. i was first going to add the cbr 600 cooler as an extra cooler then i decided to eliminate the ex cooler and use the hayabusa cooler instead. needless to say i never did either. this pic shows the difference in the hayabusa and the cbr600 cooler


wut do you think i could pick one of those up for?

[bayou boy]

i will sell that one for $20 and shipping

[Brauap]

Quick question. How is the CRB1000 oil cooler better than the 400ex's if it is smaller?

[krt400ex]

Originally posted by Brauap
Quick question. How is the CRB1000 oil cooler better than the 400ex's if it is smaller?


that was a cbr600 oil cooler. and it would aid if you added it to the stocker rather than replace it. the cbr1000 oil cooler is larger

[Brauap]

I was looking on eBay and it had one more line of those.. total of 3 and I think the 400ex has 5

Why does an engine more than 2 1/2 times cc have a smaller oil cooler?

Originally posted by Brauap
I was looking on eBay and it had one more line of those.. total of 3 and I think the 400ex has 5

Why does an engine more than 2 1/2 times cc have a smaller oil cooler?

liquid cooled. also the cbr1100 is the cooler thats bigger than the 400ex! remember the 1100 not the 1000.

[Brauap]

I was looking a CBR1000

[bayou boy]

if you use a cooler like the cbr 600 you would tap it into the oil passage in the clutch cover run a hose to cooler the tap it into valve cover on timing chain side....it takes the oil and routes it through a cooler thus suppling cooler oil on the valvetrain instead of running up the side of the cylinder getting hotter on the way.

[Allison55ex'er]

do you think u could run that hyabusa oil cooler and then put two spal fans side by side haha just a thought but i bet if u did that it would run so cool i might do something like that but i think it would be running the battery dead a little bit more???

[Allison55ex'er]

Bayou Boy what year busa is that cooler from?

[bayou boy]

dont really remember i have been having it for a couple of years. it is sold. they are a lil wider than a stock ex but ez to fit. just need to weld a couple of clips and mount it up. i kind of mocked it up on a friends ex we had apart at my house just to see.