jonny1bump Posted August 12, 2015 Share Posted August 12, 2015 What a pain Clive, was bands any good.APE studs and nuts are a must.On the stocker we use copper and Gasgacinch gasket sealer. Quote Link to comment
McLean Racing Posted August 12, 2015 Share Posted August 12, 2015 (edited) Defo. APE studs and torque it down to 42ft/lb. Then enjoy some trouble free riding Never had a MLS gasket let go even with high comp and 100+hp nitrous Edited August 12, 2015 by McLean Racing Quote Link to comment
Duckndive Posted August 12, 2015 Author Share Posted August 12, 2015 TBH i think to much static C/R + 10PSI was the prob..... Quote Link to comment
Robinjo Posted August 13, 2015 Share Posted August 13, 2015 I have a brand new set of APE 1127 studs and nuts gathering dust, so maybe we can help each other.But it's also important that both the head and the block surfaces are straight. Quote Link to comment
Gixer1460 Posted August 13, 2015 Share Posted August 13, 2015 That's the beauty of copper - its soft enough to tolerate a degree of block / head imperfection - as long as its annealed first! Quote Link to comment
jamie k Posted August 21, 2015 Share Posted August 21, 2015 Looks like an aircraft engine - bet it goes like one as well , keep the pics and good work coming Quote Link to comment
jrhartley Posted August 25, 2015 Share Posted August 25, 2015 I pulled the MLS down to 35lb ft...which is 5lb over stock spec...going to get the head licked to be 100% sure its flat..."which will mean sums and C/R adjustments "May have to sell a H-Light to fund studs and new gasket.... "5lb over stock", Thats why the gasket failed, the stock suzuki studs are a precision machined items, (unlike APE junk) torque as per Suzuki spec's no more, When you give them extra lb you exceed the design parameter's.` In my garage I have two oil cooled turbo bikes, one has std studs the other APE, guess which bike has a oil weep?, yep the APE head studs are the problem! Both bikes have been on the road some time, seeing up to 20psi, the APE studs will at some point be removed and chucked in the bin, utter garbage........ Quote Link to comment
McLean Racing Posted August 26, 2015 Share Posted August 26, 2015 Used APE studs in various motors over the years. Never had a problem at all with em. I know plenty of dragbike racers aswell who use em and never had a problem so are u sure its ur studs that are the problem? Quote Link to comment
Gixer1460 Posted August 26, 2015 Share Posted August 26, 2015 Not wanting to get into a pissing contest but that's the first time I've ever heard anyone call stock studs 'precision machined items' - If your lucky they are forgings with a rolled thread so hardly a precision operation! Clamping pressure comes down to area and torque - APE studs and the stupidly thick bolts used in Busa motors these days have probably 50% greater cross sectional area each step - stock GSXR - APE GSXR - APE Busa allowing respectively greater torque to be applied to the nut / stud combination! Not unheard of busa's with 6-700hp @ 2.5 bar boost using 90+ ftlb torque figures to survive! 2 Quote Link to comment
R1guy Posted August 29, 2015 Share Posted August 29, 2015 If I had an efe, I'd want it exactly like this. Quote Link to comment
Duckndive Posted August 29, 2015 Author Share Posted August 29, 2015 (edited) Right done some proper measuring."cant do the dome without removing motor or jacking it up at stupid angle so used 10cc as mentioned else-ware"... and used two different calculators to get the static C/R don't believe 5lb over on the 5hite forged studs sorry "precision machined items" was issue as they still had the same lbs on when I removed.... Not had chance to clean up head and check surface......and speaking to a few peeps the unlucky bad gasket has been mentioned" Still onwards and upwards we now what the C/R was....and I still have 4.5 gallons off race fuel to burn.... . Edited February 18, 2018 by Duckndive 1 Quote Link to comment
McLean Racing Posted September 1, 2015 Share Posted September 1, 2015 Gsxr/bandit combustion chamber should be 23cc? Quote Link to comment
Duckndive Posted September 1, 2015 Author Share Posted September 1, 2015 Gsxr/bandit combustion chamber should be 23cc? Measured my 1100k head and its 28cc Quote Link to comment
McLean Racing Posted September 1, 2015 Share Posted September 1, 2015 Measured my 1100k head and its 28cc Got me questioning myself now lol ill check one of my spare heads 2morrow lol Quote Link to comment
Duckndive Posted September 1, 2015 Author Share Posted September 1, 2015 Got me questioning myself now lol ill check one of my spare heads 2morrow lolLoL I,ve heard 2 different quotes the on Dot head being 22 / 23 cc........"THE ONE I HAD WAS 22cc" But that went to the gods yonks ago Cant measure the other 1100 head I have as its got no valves in......But will measure the 1100k again...................may get an Adult to double check.................. Quote Link to comment
Gixer1460 Posted September 1, 2015 Share Posted September 1, 2015 750 = 22 / 23cc and 1100 = 26 / 28cc Ring a bell in my melon hence the 750 head compression increase with just a swop, Quote Link to comment
Duckndive Posted September 3, 2015 Author Share Posted September 3, 2015 Measured the head again and it ,s 28cc£40 worth of Suzuki O-rings arrived today so will nail it back on over the weekend............... Quote Link to comment
Duckndive Posted September 4, 2015 Author Share Posted September 4, 2015 (edited) Ok curiosity got the better of me so in true Archimedes Fashion got the bike up at stupid angle and measured the Bus Pistons recess.... Drum Roll Bish Bash Bosh Ta Daaaaaaaaaa and its,...................................8cc .. So can do some proper "Real World" sums now.............. Edited February 18, 2018 by Duckndive . 2 Quote Link to comment
Duckndive Posted September 4, 2015 Author Share Posted September 4, 2015 And the answer In my case is 8:6 to 1..............So in the morning its out with the Hammer & Nails and back together its going.............. Quote Link to comment
Gixer1460 Posted September 4, 2015 Share Posted September 4, 2015 I thought 'No Nails' glue was more your style! Quote Link to comment
Duckndive Posted September 15, 2015 Author Share Posted September 15, 2015 (edited) On 05/09/2015 at 12:55 AM, Gixer1460 said: I thought 'No Nails' glue was more your style! You Know me so well............. Unfortunately Head Gasket was wrong size so picking up correct one tomorrow....... Edited February 18, 2018 by Duckndive 1 Quote Link to comment
Fula28 Posted September 15, 2015 Share Posted September 15, 2015 Loving the noise in the air Clive! At least you Sussed C.r and the head gasket lol. Quote Link to comment
Duckndive Posted September 20, 2015 Author Share Posted September 20, 2015 (edited) Picked up new sticker gasket ... then after a complete freak cluster #uc# ended up pulling the motor out and splitting cases to retrieve it ... So after the unscheduled trip onto the bench...The motor is now 3/4 back together and back in the frame...needing just the clutch and wizzy bang system refitting... Edited February 18, 2018 by Duckndive Quote Link to comment
Duckndive Posted September 27, 2015 Author Share Posted September 27, 2015 (edited) And Back in the Room............. All back together and fired up...minor clutch adjustment aside all ok Ya got to luv the cometic case gaskets re-used with no leaks. Will try and get it back down the strip before year end to test it out... Edited February 18, 2018 by Duckndive 2 Quote Link to comment
Pheasantplucker Posted November 8, 2015 Share Posted November 8, 2015 Hi, do you prefer the s&s to the mikuni? Quote Link to comment
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