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Workshop => Engine and Bottom End => Topic started by: Trxjunkie86 on December 26, 2014, 03:52:29 AM

Title: What big bore kit should i get?
Post by: Trxjunkie86 on December 26, 2014, 03:52:29 AM

Looking into super duner setup with very good drag potientals where i can spank most 4mil banshees that are pushing over 90whp.  I want my R to have pretty reliable setup and whom/which company should i look up onto? Packard Racing? CT? Hybrid Engineering? Whats the highest rating?  Also i need my bottomend bored out to do bigger than 310cc.  Any thoughts on topend kit? Thanks :-)

Title: What big bore kit should i get?
Post by: Skeans1 on December 26, 2014, 06:39:45 AM

Either Pete at Hybrid Engineering or Arlen at Led can do what you need and both are around the Portland area.

Title: What big bore kit should i get?
Post by: udontknowme on December 26, 2014, 04:49:42 PM

i think your expectations might be alittle high unless you run into some poorly setup 4mil which im sure theres a few of them out there

Title: What big bore kit should i get?
Post by: Trxjunkie86 on December 26, 2014, 05:33:23 PM

Thanks... I was wondering which would be best way to spend money?  Get the puma kit from CP industries and send it to Pete or have Him order the cyls and do mad porting job?  Reason im asking is because my bottomend is also needing to be sent in to get bored out... FYI my bottomend ALREADY is an 4 MIL

Title: What big bore kit should i get?
Post by: Trxjunkie86 on December 26, 2014, 05:35:10 PM

How good is Pete at porting job compared to BUBBA AND Arlene @ LED?

Title: What big bore kit should i get?
Post by: Mickkey82984 on December 26, 2014, 06:21:30 PM

If it wheir me I'd do go a puma build by hybrid, Packard. Pete seems to be more of a drag dune builders and led is more low end mid range. Can't go wrong with bubba or c Leigh as well.

Title: What big bore kit should i get?
Post by: Jerry Hall on December 26, 2014, 07:07:15 PM

Quote from: Trxjunkie86;48039

Looking into super duner setup with very good drag potientals where i can spank most 4mil banshees that are pushing over 90whp.  I want my R to have pretty reliable setup and whom/which company should i look up onto? Packard Racing? CT? Hybrid Engineering? Whats the highest rating?  Also i need my bottomend bored out to do bigger than 310cc.  Any thoughts on topend kit? Thanks :-)

I have had a lot of 4mil Banshees on my dyno that ranged anywhere from 55 HP (Poorly done 4mil with Yamaha cylinders) to over 110 hp (4 mil Cheetahs).

Good running 330s to 370s make 60 to 65 hp on my dyno.    330s and 370s in this power range will need the piston replaced about every 20 hrs or less to prevent the cracks from propagating to the point where the piston will come apart and cause a catastrophic failure.  

I have not had any sphinx cylindered bikes on my dyno.  I have only had one Puma on my dyno. It was poorly done and made under 50 hp.

I also think that your expectations are set too high if you plan to run with 90 hp Banshees.   Regardless of what cylinder you use do not expect the bike to be usable and reliable for anything other than 300 ft drags or strictly for hill shooting.

Title: What big bore kit should i get?
Post by: udontknowme on December 26, 2014, 08:47:03 PM

you didnt mention nothin of a overide trans. without it you lose a ton of ground clutching every gear. not that you would win even with a overide but without it theres little hope. might want to make a new game plan thats more realistic

Title: What big bore kit should i get?
Post by: Trxjunkie86 on December 26, 2014, 09:15:22 PM

ok.. whats the best build recommendition to have a super duner 50/50 drag setup?? preferably race fuel

Title: What big bore kit should i get?
Post by: Trxjunkie86 on December 26, 2014, 09:19:30 PM

I have a 10 mil crank full twister topend banshee that does 122hp and its expensive to redo these compared to a single cylibder trx that im asare of if im still right?? Well i got rid of my shee bec im not ibto only drags but into super duning... my twister bike is set up for drag and no fun for duning with all the power it got..

Title: What big bore kit should i get?
Post by: Jerry Hall on December 27, 2014, 10:54:18 AM

Quote from: Trxjunkie86;48062

ok.. whats the best build recommendition to have a super duner 50/50 drag setup?? preferably race fuel

A super duner 50/50 drag setup  will also need about 90 hp to compete with 90 hp Banshees.  A 90 hp single cylinder TRX is not going to be a reliable super duner.  A 90 hp TRX is going to be a drag only engine.

Title: What big bore kit should i get?
Post by: Mickkey82984 on December 27, 2014, 12:16:34 PM

I agree with Jerry, a 80 hp duner-drag set would be more achieve able. I think the problem is too many people drink the coc's cool aid and believe you can get 50 some hp and 40 some pounds of torque out of a stock cylinder.

Title: What big bore kit should i get?
Post by: Pumashine on December 27, 2014, 01:01:09 PM

The Saber was set up as a drag motor. The mini tooth changes the port timings with the use of the 89mm sleeve that was press into the 95mm bore. The only super duner mini tooth is still under construction. The other mini tooth is a drag motor. It is true we invented the baby Saber. I have heard there is another one available if you want to call Pete at Hybrid!

Title: What big bore kit should i get?
Post by: udontknowme on December 30, 2014, 12:29:38 AM

what does the minitooth end up at. 89x76 ?

Title: What big bore kit should i get?
Post by: Pumashine on December 30, 2014, 12:24:41 PM

Quote from: udontknowme;48198

what does the minitooth end up at. 89x76 ?

89 x 77 which comes out to 479cc

Title: What big bore kit should i get?
Post by: Sand_Blaster on December 31, 2014, 12:16:46 AM

Arlen builds a nice Puma duner