TRX250r.org

Author Topic: Trying to decide on what 350cc kit to run.  (Read 10784 times)

Offline Hutchracer

Trying to decide on what 350cc kit to run.
« on: November 04, 2019, 04:11:00 PM »
So I have an 86 TRX250R and I am looking to do a 350cc Big Bore on it.
I am considering the BDT Pro-X w/the BDT Pro Porting & Flow.
I am basically building this for the dunes and would like to have enough power to drag with the boys.

Just curious if any of you guys have ran this set up. I see the Pro-X kits have better reviews than the ESR kits. I am wanting make sure I spend my $ getting the right kit. I've seen that CT sells a kit too but haven't seen much info in comparison to the BDT kit.

What do you guys think?

Offline etccb

Re: Trying to decide on what 350cc kit to run.
« Reply #1 on: November 04, 2019, 05:24:56 PM »
You wont see hardly any pro-x kits chosen over esr kits today. I would look into the esr ceo kits.

Offline croat1

Re: Trying to decide on what 350cc kit to run.
« Reply #2 on: November 04, 2019, 05:33:38 PM »
CT racing Prox-X cylinders are not available (new) at this time.  I’d suggest a CP industries cylinder if you have the funds.  ESR cylinders are a great buy.  Get the cylinder ported by Selvey, LED, BHP, Hybrid or Jerry Hall.

What engines are the guys running that you are racing against?

Joe

A few Laegers
1987 oem
2025 Yamaha Raptor 700R
Mission: Back to Basics.  On the trail or dune

Offline The norm

Re: Trying to decide on what 350cc kit to run.
« Reply #3 on: November 04, 2019, 06:48:42 PM »
I think you should absolutely stay away from BDT! I had a ESR cylinder ported by BDT and it was nothing but trouble. I had Hybrid engineering work it over and now it is a monster. I recently had Hybrid build a 390 for me and it is fantastic. I went with the ESR cylinder again and can't complain.
Loren
1986 Trx250r-- Hybrid Engineering 391(Good bye super 310)
1986 Trx250r-- Hybrid Engineering  ported stock 86 cylinder
1986 Trx250r-- craigslist engine with unknown ported 89 cylinder.
1985 Atc250r-- Needs a lot of work (Super 310's new home)

Offline hickwheeler

Re: Trying to decide on what 350cc kit to run.
« Reply #4 on: November 04, 2019, 07:27:56 PM »
CT racing Prox-X cylinders are not available (new) at this time.  I’d suggest a CP industries cylinder if you have the funds.  ESR cylinders are a great buy.  Get the cylinder ported by Selvey, LED, BHP, Hybrid or Jerry Hall.

What engines are the guys running that you are racing against?

Joe


I agree with Joe on this. Plus why pay extra to a guy that charges for services he does not perform. Stay with builders that don't have a cload over them.
88 hybrid 431 puma
88 (BOF Build) stock motor and oem 89 plastics
More in the works

Offline Hutchracer

Re: Trying to decide on what 350cc kit to run.
« Reply #5 on: November 04, 2019, 07:49:58 PM »
I was also looking at the LED/ESR kit too. The ones where Arlen @ LED takes the ESR head and does work on that.
Yeah I just want to make sure that I am happy with the end result of the build.

Offline hickwheeler

Re: Trying to decide on what 350cc kit to run.
« Reply #6 on: November 04, 2019, 07:59:15 PM »
What part of the country are you located
88 hybrid 431 puma
88 (BOF Build) stock motor and oem 89 plastics
More in the works

Offline Hutchracer

Re: Trying to decide on what 350cc kit to run.
« Reply #7 on: November 04, 2019, 08:03:16 PM »
I live in the PNW just south of Seattle

Offline hickwheeler

Re: Trying to decide on what 350cc kit to run.
« Reply #8 on: November 04, 2019, 08:08:20 PM »
Ok I'm in Washington too. I would definitely look at Arlan(led) or Pete(hybrid engineering). They are both in pnw. So easy to get motor to them.
88 hybrid 431 puma
88 (BOF Build) stock motor and oem 89 plastics
More in the works

Offline croat1

Re: Trying to decide on what 350cc kit to run.
« Reply #9 on: November 04, 2019, 08:11:21 PM »
I live in the PNW just south of Seattle

You came to the right forum...lots of PNW guys here.  Not me though. I’m from Ohio. I did make it out to Winchester Bay for our ORG meet up ride.
A few Laegers
1987 oem
2025 Yamaha Raptor 700R
Mission: Back to Basics.  On the trail or dune

Offline Hutchracer

Re: Trying to decide on what 350cc kit to run.
« Reply #10 on: November 04, 2019, 08:16:49 PM »
Yeah I was looking at LED prior because I know the stuff he builds is always good. 
Does Hybrid Engineering have a website or anything? I did a quick search on my phone and it just brings up posts on forums but no website info.
Unless I'm totally over looking it.

Offline Hutchracer

Re: Trying to decide on what 350cc kit to run.
« Reply #11 on: November 04, 2019, 08:32:45 PM »
I just picked the quad up last week from my brother.
It's an 86 with a few things done to it. I got it with Silver Maier Plastics, a Laeger's Anti-Vibe Stem, a set of new extended A-Arms that aren't installed yet, a pipe and silencer which have no markings on, and a basic K&N cone filter in the air box. Oh yeah he also gave me a brand new still sealed in the box Hot Rods complete bottom end kit for it.

I pulled the carb to clean it and check the Reed Cage and noticed that the piston had a crack in the bottom of the skirt.
I already had plans to build it but I figured I'd do the biggest displacement I can where I can still use the Brand New bottom end kit I got.

Offline hickwheeler

Re: Trying to decide on what 350cc kit to run.
« Reply #12 on: November 04, 2019, 08:56:53 PM »
Pete is in washugal( spelling). No he doesn't have a website or anything. He does do top notch work. He built my puma motor this year. I'm very happy with his work. A friend just had one done by Arlan. It is a good motor too. I would think Pete would be able to get one done for you quicker. Being a bit smaller then led
88 hybrid 431 puma
88 (BOF Build) stock motor and oem 89 plastics
More in the works

Offline Hutchracer

Re: Trying to decide on what 350cc kit to run.
« Reply #13 on: November 04, 2019, 09:18:40 PM »
I'm trying to figure out if should end up just ordering up a 350cc kit from ESR and then just sending it out with the cases to Hybrid Engineering now.
Does he do porting work also? I've heard that ESR doesn't exactly do a proper "Porting" more or less just cleans up the ports.
I want to get a nicely ported motor so that it is making some good HP. I also know with a 350 I will need to have the cases done to match the cylinder.

I wish there was some way to get ahold of Hybrid Engineering to get pricing and go over what I am thinking on my motor.
Since you have had a motor done by him do you know of how to contact them?
Washougal is a couple of hours away from my house. So taking him the motor is no issue but I want to be able to talk pricing first.

Offline croat1

Re: Trying to decide on what 350cc kit to run.
« Reply #14 on: November 04, 2019, 09:25:34 PM »
Yes Pete does the porting in house
A few Laegers
1987 oem
2025 Yamaha Raptor 700R
Mission: Back to Basics.  On the trail or dune

 

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