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  1. #1

    Default 604 water bypass lines

    Are the water bypass lines on the intake 6AN or 8AN?

  2. #2
    Join Date
    Oct 2007
    Posts
    688

    Default

    dash 6 will only bleed air from the rear ---they are not large enough to move any substantial water from the rear of the engine
    also do not plumb into the manifold fittings at the front of the intake as this will simply dead head the water
    using a water neck riser is the proper plumbing and dash 8 lines
    in our kit, that I will "attempt" to put up a link to,-- we also include a 1 inch water director
    the director is positioned in the intake (under the water bypass lines) and tells the bypass system to work.

    http://race-1.com/i-23432885-cii-550...-pass-kit.html

    I think I was able to put up the link if not check the cooling tab on our website

    Brad
    www.race-1.com

  3. #3

    Default

    I already ran a PPM water neck riser with the 1/2" NPT ports and a -16 AN radiator hose and restrictor on my 602. My plan was to use this and make my own kit for my 604. The only part I'm unsure of is the 1" water director. Not sure what this is or how it works. Can it be purchased separately?

  4. #4
    Join Date
    Oct 2007
    Posts
    688

    Default

    HMMM---
    1st of all a restrictor on a 602 usually spells problems
    next your ppm riser will work great on your 604 but my question is what was the need on the 602?
    I hope you were not running lines to the center of the intake on your 602--(see link below)
    http://race-1.com/p-26200-are-my-602...s-correct.html

    the director that we use is to "direct" the water to the bypass hoses ----as with most things the water flowing through your block and heads will take the easiest path ----so we direct a certain amount of the water to the rear for more even cooling
    water bypass lines on a 604 (done correctly) will even out the heat in the cylinder heads and block thus letting it perform better and live longer----if you have an over heating problem----you will still have a over heating problem when water lines are installed---they are not going to help the engine run cooler just more even.

    Brad
    www.race-1.com

  5. #5

    Default

    No I ran the PPM water riser because it had the 16AN fitting for the top hose and used extra port for water pressure sender. I tried it with and without restrictor and it made little difference. I think maybe the small 16AN top hose is restriction enough.

  6. #6

    Default Gibbs oil blend

    Brad,
    I saw on another post you recommend a blend of XP three and XP six for the 604's.
    What ratio do you recommend? What is the average number of laps between changes?
    Thanks !
    Last edited by rebreb; 02-19-2017 at 06:26 AM.

  7. #7
    Join Date
    Oct 2007
    Posts
    688

    Default

    Rebreb,
    you had to be digging back aways for that or have a really great memory--LOL
    YES, at one point we did recommend that mix--- and it would be a 50/50 ratio
    Now we just use XP9 which is a 50/50 mix of XP3 and xp6
    The folks at Gibbs/Driven noticed enough engine builders making that recommendation and turned it into its own part# and name-----
    The Gibbs oils do mix well and there is actually a chart in their catalog for coming up with custom weights
    we still today believe a hot weight of 40 makes the lifters the happiest in the GM crate engine
    always use a split weight oil ---the first number is the cold viscosity and can be multiple numbers depending on manufacturer but the end number is what we race on and we like 40

    Brad
    www.race-1.com

  8. #8
    Join Date
    Oct 2007
    Posts
    688

    Default

    To answer your oil change interval question-----
    different oils have different recommended change intervals
    and extreme situations have different change interval requirements

    On the Gibbs XP9 with "NORMAL" use (water temps under 220----oil temps under 250) (good filters) etc.
    we recommend racing 3 nights and then changing the filter
    race another 3 nights and change the filter again
    race another 3 nights and change everything

    of course you will need to add at least 1 quart of oil every time you change the filter
    the oil level should be checked and adjusted every week
    NEVER over fill a GM crate engine---oil level is critical on these engines
    keep in mind this is a general recommendation

    Brad
    www.race-1.com

  9. #9
    Join Date
    Jul 2007
    Posts
    2,989

    Default

    Quote Originally Posted by brad hibbard View Post
    To answer your oil change interval question-----
    different oils have different recommended change intervals
    and extreme situations have different change interval requirements

    On the Gibbs XP9 with "NORMAL" use (water temps under 220----oil temps under 250) (good filters) etc.
    we recommend racing 3 nights and then changing the filter
    race another 3 nights and change the filter again
    race another 3 nights and change everything

    of course you will need to add at least 1 quart of oil every time you change the filter
    the oil level should be checked and adjusted every week
    NEVER over fill a GM crate engine---oil level is critical on these engines
    keep in mind this is a general recommendation

    Brad
    www.race-1.com

    Gibbs dumped after 9 nights, thats crazy. 100-120 laps for a weekly racer?
    My ignore list... copy pasted. Which means if your on here I DONT see your posts.

    ALLDIRT a1driver a25rjr balljoint balljoint_ calverton carowner73 CIRF Clayton_Wetter decrate61 dirtdobber45 dirtman007 frontrunner gator 49 LITE--OUT Raceready

  10. #10
    Join Date
    Jan 2014
    Posts
    137

    Default

    weekly racer: 5 hot laps , 10 lap heat, 20 lap feature x9 nights= 315laps

  11. #11
    Join Date
    Jul 2007
    Posts
    2,989

    Default

    Quote Originally Posted by GRT62 View Post
    weekly racer: 5 hot laps , 10 lap heat, 20 lap feature x9 nights= 315laps
    Still an absolute waste of money.

    Send some samples off some time to be analyzed.

    Since r2c filters came out, with a outer wear and using their base plate (and rubber seal on top of the carb), nothing gets into your motor... nothing.
    My ignore list... copy pasted. Which means if your on here I DONT see your posts.

    ALLDIRT a1driver a25rjr balljoint balljoint_ calverton carowner73 CIRF Clayton_Wetter decrate61 dirtdobber45 dirtman007 frontrunner gator 49 LITE--OUT Raceready

  12. #12
    Join Date
    Oct 2007
    Posts
    688

    Default

    with all the different types of racing we encounter these days that Race-1 is apart of maybe it would be better to start our timeline in laps rather than nights
    we have pavement tracks that start practice at 2 in the afternoon where an engine may run 50 laps of practice and then qualify plus 10 to 15 lap heat and then 50 to a 100 lap main event (170 laps possible)
    then on the flip side we have dirt mod classes that run 3 hot laps 8 lap heat and 15 lap feature (less than 30 laps)
    admittedly there is a pretty big swing between the 2 but then there is everything in between
    I have simply kept track of "nights" my whole life
    when talking with the general racing public I think a fair average is 50 laps per night
    (sorry---I just can't break the night timeline)
    with that said I am making a recommendation in the 450 "LAP" area for a complete oil change

    Stock Car, I certainly agree with you that the Gibbs product is a quality oil and will withstand punishment but please put yourself in my shoes for a minute
    we deal with a wide customer base and not all of them are as thorough with maintenance items like air filters and clean radiators as we would like or expect them to be.

    excessive heat and contaminants are always bad so we are conservative in our recommendations and as I stated in the original post ---our recommendation is general

    Brad
    www.race-1.com

  13. #13

    Default

    I've always looked at this way, I can buy oil and filters cheaper than I can engines. I tend to lean to the conservative side on oil changes it is never to early.

  14. #14
    Join Date
    May 2007
    Location
    in a van down by the river
    Posts
    1,451

    Default

    I agree with both of the above posts. Especially Brad. as an engine builder you cannot have a base recommendation for all. a lot depends on how the stuff is kept up with and maintained.


    you all have to remember Stock Car Driver is God. he knows everything and he is not afraid to tell you his option.
    write or wrong. I agree with a lot of what he says, but his delivery is a little rough around the edges.

    JMO though not bashing anyone.
    I think there should be lifeguards in the genepool.

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