Mcelroy434 Posted January 19, 2019 Posted January 19, 2019 (edited) Hi, I am in the process of building a GSXR 1100 M Turbo street fighter. My question is, does anybody have experience with what power the stock con rods in these 1127 motors are good to? I am chasing some decent numbers (300bhp) and was looking at Carrillo but wanted to confirm the price tag was warranted and worth it..... Are there any other upgrade options like 493 or Busa rods etc that will fit this engine? P.S. This bike will never see a road, only track use Thanks Edited January 19, 2019 by Mcelroy434 Quote
mikeyd Posted January 19, 2019 Posted January 19, 2019 Some guys get away with stock rods ups to 300hp (not recommended ) Then they will use water-cooled rods or gen 1 Busa rods, but if its track only , get Carillos - very strong for anything over 250 hp and worth the price, which is bullshit since you can get 8 rods for a chevy for less. I think Crower still makes oil cooled rods to. Have not had good luck with Falicon rods. Worry more about doing a rocker head conversion. 1 Quote
mikeyd Posted January 19, 2019 Posted January 19, 2019 Also make sure of wrist pin sizes first. Quote
Mcelroy434 Posted January 19, 2019 Author Posted January 19, 2019 1 minute ago, mikeyd said: Some guys get away with stock rods ups to 300hp (not recommended ) Then they will use water-cooled rods or gen 1 Busa rods, but if its track only , get Carillos - very strong for anything over 250 hp and worth the price, which is bullshit since you can get 8 rods for a chevy for less. I think Crower still makes oil cooled rods to. Have not had good luck with Falicon rods. Worry more about doing a rocker head conversion. Thanks for the info, I may look at the Carrillo then, not worth the risk. I have looked into the head conversion, is there any threads or info you can point me to for the details of whats involved? unfortunately I dont know of any machine shops here in Australia that deal with older Japanese engines regularly who can assist. My understanding is that the cams themselves need spacing out to stop lateral play but the fork rockers will slot onto the existing shafts, again may need spacers... Quote
no class Posted January 19, 2019 Posted January 19, 2019 at that level of HP (300)…..the stock 1127 rods will most probably shit themselves very shortly….. 493's are an air cooled item which are pinned to roller bearing cranks so not even compatible with the oil cooled crankshaft.....busa rods can hold there own but from what I have researched are a gamble up around your target 300 …..Carrillo , Wossner ….to name a couple.....not too many big name manufacturers making oil cooled gsxr rods anymore..... 2 Quote
no class Posted January 19, 2019 Posted January 19, 2019 3 minutes ago, Mcelroy434 said: Thanks for the info, I may look at the Carrillo then, not worth the risk. I have looked into the head conversion, is there any threads or info you can point me to for the details of whats involved? unfortunately I dont know of any machine shops here in Australia that deal with older Japanese engines regularly who can assist. My understanding is that the cams themselves need spacing out to stop lateral play but the fork rockers will slot onto the existing shafts, again may need spacers... easier just to put a rocker / tappet type head on than to fuck with machine shops . 1 Quote
Mcelroy434 Posted January 19, 2019 Author Posted January 19, 2019 6 minutes ago, no class said: easier just to put a rocker / tappet type head on than to fuck with machine shops . are the 1052 heads a direct bolt onto the later blocks? Quote
no class Posted January 19, 2019 Posted January 19, 2019 (edited) I have a L head on one of my spare 1052 motors.....so yes....they fit . Edited January 19, 2019 by no class Quote
Duckndive Posted January 19, 2019 Posted January 19, 2019 (edited) Detonation "Tune" has killed more rods than power ever has Edited January 19, 2019 by Duckndive 2 Quote
MeanBean49 Posted January 19, 2019 Posted January 19, 2019 Ive been running stock bandit 1200 rods in mine for 6 years, it makes upto 200lbs ft and 280bhp. I did around 15000 miles of pretty hard use on what was already a 45000 mile abused motor. Loads of track days, roaf miles and landspeed events Only just let go end of last year, it was getting tired I just had to do one last trackday haha Im now building a new motor with busa rods but thats more because I had a set than I think I need them. Guess it all depends on what you want to use the bike for, drag racing might be harder on a motor when you arent running engines for long and have long swingarms to really hammer them on launch, for anything else good stick rods are pretty good, busa ones even better, Carillos imo overkill 2 Quote
clivegto Posted January 19, 2019 Posted January 19, 2019 Running busa mk1 rods in my one making 260hp, done 3000 miles no problems so far. Quote
Duckndive Posted January 19, 2019 Posted January 19, 2019 1 hour ago, MeanBean49 said: Only just let go end of last year, it was getting tired I just had to do one last trackday haha What gave in out of interest ? Quote
MeanBean49 Posted January 19, 2019 Posted January 19, 2019 23 minutes ago, Duckndive said: What gave in out of interest ? Still not stripped it, suspect its a big end shell finally given up the ghost, still running but has a bit of a knock. Its my own fault to be honest, had other motor almost ready to go, just couldnt be arsed to swap them over because weather was so good, rather be out ridning Quote
Duckndive Posted January 19, 2019 Posted January 19, 2019 Just now, MeanBean49 said: Still not stripped it, suspect its a big end shell finally given up the ghost, still running but has a bit of a knock. Its my own fault to be honest, had other motor almost ready to go, just couldnt be arsed to swap them over because weather was so good, rather be out ridning Result in a way then as not Carnage from a Rod then Quote
MeanBean49 Posted January 19, 2019 Posted January 19, 2019 24 minutes ago, Duckndive said: Result in a way then as not Carnage from a Rod then Yeah, i had no complaints really, motor had more than earned its retirement Quote
no class Posted January 19, 2019 Posted January 19, 2019 …..I prefer rye bread when having a good smoke meat sandwich ….tried others but nothing beats a good rye ! Quote
Reinhoud Posted January 24, 2019 Posted January 24, 2019 This happens when a con-rod gives up.... 2 Quote
Gixer1460 Posted January 24, 2019 Posted January 24, 2019 On 1/19/2019 at 10:21 AM, Duckndive said: Detonation "Tune" has killed more rods than power ever has And oil delivery failure probably killed the rest! Falicon's are particularly susceptible to this from what i've seen! Quote
jonny1bump Posted January 24, 2019 Posted January 24, 2019 Falicons really don't have good rep. Quote
Brokenbill Posted January 28, 2019 Posted January 28, 2019 my bandit is running 320 at the rear on full boost. done 18k on standard rods so far? the gearbox is a bit noisy now so about to strip down and will check them out but no knocking at the moment.. 1 Quote
MeanBean49 Posted January 29, 2019 Posted January 29, 2019 On 1/28/2019 at 8:27 AM, Brokenbill said: my bandit is running 320 at the rear on full boost. done 18k on standard rods so far? the gearbox is a bit noisy now so about to strip down and will check them out but no knocking at the moment.. Must be a pretty serious spec turbo? Quote
Brokenbill Posted February 2, 2019 Posted February 2, 2019 yup, jack frost at holeshot built it for me. turbo busa pistons, h/d studs, cams, lock up clutch, eboost2 neatly stuck in where the fuel gauge used to be with 3 settings. Quote
jonny1bump Posted February 3, 2019 Posted February 3, 2019 Get some pics up dude, we all like pics. Quote
Brokenbill Posted March 28, 2019 Posted March 28, 2019 On 2/3/2019 at 4:57 PM, jonny1bump said: Get some pics up dude, we all like pics. I'm not very good at taking pictures.. these are my three turbo's and a couple of the bandit.. will download some more when I find them 1 Quote
manden Posted April 3, 2019 Posted April 3, 2019 On 1/19/2019 at 12:27 PM, clivegto said: Running busa mk1 rods in my one making 260hp, done 3000 miles no problems so far. Is the busa rods lighter? Quote
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