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    What is better a 300HP s/c or turbo

    I think most of the records are held by turbos
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    question for the turbo guys

    The turbo market on 2-smokers has really taken off in the last 2 years. I have herd of some guys running the gravity thing on garrett ball bearing turbos. It might work for a bit because that turbo pools oil around the bearings. Ted is right your friend should get shook, it is not the way to...
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    VP111 vs C12. Is the 1 octane point the only difference?

    I can not see why not at 50/50 mix it should only bring the octain down 1/2 point. Look at the weight of the barrles marked on the tag I think the 111 is heaver, on a carb system it could make a difference.
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    OSP Jim coming to dyno tune Friday A.M.

    Man that thing just took off on the dyno. I am no dyno expert but I do know the longer you can hold hp for the more accurate the data you get is. So because it spiked and flashed 562 hp on the screen do you think this is a valid number? Maybe there would have been more hp if the motor was held...
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    Not Yamaha and not english, but lots of boost

    wow And I thought dropping a valve was bad. http://www.youtube.com/watch?v=kCsSVLZ6wCI
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    pc111 on mpi apex

    I used 3 bar gm style map sensors on low boost aplications, seems to work ok. I set the fuel table up to peak @ 3.5 volts instead of 5, it is good for about 22psi boost than. But then again for 7psi you would be better off with a 2 bar
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    Turbo Apex Build

    Hey Jake I been working on this for about 3 months in my spare time, it is taking to long to get done. I toss together around 2 of 3 turbo kit a year just one off stuff. I put a turbo on a quad before this one and I started on a kit for a M-1000 a few weeks ago. It keep me out of trouble.
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    Turbo Apex Build

    The valve is a 40.00 part, man it could have been bad, I had to force myself to get working on it after I found a dead clyinder I was thinking the motor was ficked. It was making a squiking grinding noise out the turbo. I thought a hunk of piston was back there tring to get out. If I would...
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    Dropped Valve...... Why........

    I know you have a point I will measure the cams when I get home. For me it make sence to set them up on the loose side (keep in mind a lot of time I don't make sence lol).
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    Dropped Valve...... Why........

    Setting them loose is only about 1/1000 of a inch I am still concered why this happened is it probable that one valve was lashed loose enough to cause the valve to drop. Did I over rev it and float the valves, I did not hear the rev limter.
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    Dropped Valve...... Why........

    Thanks again for the replies, So I checked the lash on the bench and all the lash clearances are on the tight side, I know torqueing the head down will effect it. I will loosen up the lash so I can pound the valves into the head with some good old fashion detonation (just kidding but I will...
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    Turbo Apex Build

    This is where things start sucking really hard. I was tuning this on a track stand The program I made up for the RB3 was working great, the it started running like crap. This forum has been more than excellent helping me with troubles. The dudes on the turbo section figure the valve lash...
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    Turbo Apex Build

    Opps
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    Turbo Apex Build

    I tossed a longer track under this thing, went from a 121 with a 1 1/4 lug to a 153, 2 1/4. Thanks NM for the deal on the skid and track I added a hunk of tunnel from a Polaris I had laying around I liked cutting up the tunnel I made up a extra heat exchanger out of some left...
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    Turbo Apex Build

    At this point I made the bad choice of building a rude obnoxious muffler.I do not like it and it adds to a growing list of mistakes I have made (the list is frickin huge man). It is what it is. Sooner or later someone is goint to throught a snow ball at it and take out my O2 sensor LOL (it not...
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    Turbo Apex Build

    So I blew off most of a week end try to weld and make things work. Cory Bell (author of Maximum Boost once wrote) There is nothing wrong with copping just copy the best. The intercooler is a rip off of a powderlites old style one, there has been a few important improvements since. I...
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    Turbo Apex Build

    So with my special welding skills I managed to turn this thin into a hunk of $hit in 3 min.. lol It wasted 2 day to get it right
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    Turbo Apex Build

    I added a head shim and it set the cams @ 114 degrees centers. Dave from Powderlites has been a great help the past few years and sold me a intercooler core. [size=15pt]Here is the head shim The rig for the cam timing And getting a start on the intercooler
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    Turbo Apex Build

    The turbo I had from a 2-Smoker build a few years back it ia a garrett 2871 with a .68 ex housing and the bigger compressor for the 2871. I know the thing is going to be a lag master bet the turbo was just collecting dust So I got a mounting plate fabbed up and a charge tube that is going to...
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    Turbo Apex Build

    I had a lot of parts sitting around from other turbo projects and the labour cost on this will be zilch I built a few turbo kits in the past. It started out at a shaker of a Ukraine wedding were a cousin told me of a dinged up Yamaha . It turned out to be a 07 Attack that should have been...


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