Big bore Drz400sm?

[Goodland boy]

My drz needs more power!! I'm always winding it out cruzing on the freeway and starting to get scared I'm gunna blow it up. What can you guys tell me about the big bore kits they sell for the 06 Suzuki DRZ400SM?

[teebes]

They're quality Do you have any other perf mods yet? Do you have a budget?

[txrider]

Why are you scared you'll blow it up? If you like to do 90+ on the freeway you might consider a sportbike.

[cobongo]

Why are you scared you'll blow it up? If you like to do 90+ on the freeway you might consider a sportbike.

what he said ^^^ sumo + highway = not so much fun


but my 08 has 13k miles on it now from mostly highway and its still fine

[Goodland boy]

mods are T4 exhaust, K&N, and regeared sprocket too one tooth faster with a gold chain. and of course rejetted the carb for the T4 ... no budget as long as i dont spend a furniture.

Yea i relized right away Sm and freeway dont match... i try and only ride it to work since its the fastest

[SwitchThrottle]

For a double recliner micro fiber couch, you could rejug it with cams and pumper carb, and make it as maintenance intensive as an exotic. But at that price you might as well sell it and add the leather lazy boy to the previously mentioned couch, and pick up a nice used SM610.

[HPIguy]

For a double recliner micro fiber couch, you could rejug it with cams and pumper carb, and make it as maintenance intensive as an exotic. But at that price you might as well sell it and add the leather lazy boy to the previously mentioned couch, and pick up a nice used SM610.

LMFAO.

[k03gsxr750]

mods are T4 exhaust, K&N, and regeared sprocket too one tooth faster with a gold chain. and of course rejetted the carb for the T4 ... no budget as long as i dont spend a furniture.

Yea i relized right away Sm and freeway dont match... i try and only ride it to work since its the fastest

I needed the laugh this morning

[MLMcap79]

You realize that a bigger bore isnt going to make it rev any higher right??? When you say you regeared "one gear faster", what do you mean???
Gearing is the ony way you're gonna get any more revs for prolonged high speeds on the highway.

[smrscott]

A big bore 455cc kit such as the Max Power, carb and cam make a huge difference. But when you get there it might cost a few grand. At that point, sell the DRZ and buy a more powerful bike like a KTM 690, Husky 610 or Aprilia 550.

I think the DRZ is an awesome bike for the price but when you start adding stuff like big bore kits, cams, porting, carb and sometimes ignition, it kind of gets away from the reason you are riding a DRZ: affordable, and will run forever with basic upkeep.

[speeddemon619]

I think a 690 KTM or a 610 would be a good choice, more sporty, and alot more motor and still reliable

[HPIguy]

You realize that a bigger bore isnt going to make it rev any higher right??? When you say you regeared "one gear faster", what do you mean???
Gearing is the ony way you're gonna get any more revs for prolonged high speeds on the highway.

+1. As a matter of fact, most big bores will rev more lazily than the stock bore due to more mass to accelerate. I love torque motors though, so I like the one's I've ridden or owned.

[GeMs]

Are you guys kidding? You obviously haven't seen/heard of/read of Eddies work. About 60 horse power, 38 ft lbs, and as reliable as the stock engine. Whats the claimed HP on the 610? And how much to they cost brand new? I bet for the price of a DRZ and the cost of Eddies 470, its under the price of a brand new Husky, with more power/reliability.

[b.h.]

Are you guys kidding? You obviously haven't seen/heard of/read of Eddies work. About 60 horse power, 38 ft lbs, and as reliable as the stock engine. Whats the claimed HP on the 610? And how much to they cost brand new? I bet for the price of a DRZ and the cost of Eddies 470, its under the price of a brand new Husky, with more power/reliability.

a new 610 is around 8500, so probably cheaper than a new DRZ + the 470 "kit"

new drz = ~ 6500 OTD ?

41mm FCR, full exhaust, big bore, stroker, cams, valves, springs, porting, cylinder spacer, + labor = 3-4k ?

and the 470 is not as reliable as stock.
it's a race motor and needs to be maintained as such, Eddie states that point often.

and then you'd have to put another 2k into the brakes and suspension to get them close to the stock components on the husky or ktm

[GeMs]

1k oil changes are a pretty easy maintenance schedule if you ask me. I bought my drz with 3k miles on it with full a full yoshi Ti, and a full brembo radial set up, and resprung for 4k. I have everything for the stroker kit except the cams/valves/springs and even with those items + labor its going to cost me about 2600 for eddie to do it. So for 6,600 ducks I have a bike with more power, handles great and stops great, more reliable, and with better parts availability. So maybe I just got lucky with my purchase, but 6,600 is a way better price than 8,500.

[b.h.]

1k oil changes are a pretty easy maintenance schedule if you ask me. I bought my drz with 3k miles on it with full a full yoshi Ti, and a full brembo radial set up, and resprung for 4k. I have everything for the stroker kit except the cams/valves/springs and even with those items + labor its going to cost me about 2600 for eddie to do it. So for 6,600 ducks I have a bike with more power, handles great and stops great, more reliable, and with better parts availability. So maybe I just got lucky with my purchase, but 6,600 is a way better price than 8,500.

so you're comparing the cost of a used bike, and not including the cost of a bunch of parts that you've already bought --- vs a brand new husky

yeah, I guess the comparison works out in your favor then



don't get me wrong, I love the DRZ. I'm currently building up a SM as a race bike. I'll probably have 6k into it by the time it's done. I'm not trying to knock those that dump money into them. but I'm realistic too, I could have had a monster of a race bike for 6k. faster, lighter, better components, but I wanted something different.

[T-Bone]

Talk to Burned/Eddie (He's a member here as well as a mod on Thumpertalk.com) His motors are reliable and make GREAT power.

[stoo]

Why are you scared you'll blow it up? If you like to do 90+ on the freeway you might consider a sportbike.

Or an XR650R SM. About the same weight as the DRZ, but grunty enough to cope with more prolonged high speeds than your neck can stand.


I really miss mine.

[flyboybill]

I thought this bike would be tacked out doing 55 miles an hour, I do own a 2006 CBR 1000RR but, I am in pain and have dreaded to ride it an have ended up finding that about once a week is what i can take before it feels like a job.
I wanted an everyday driver, I wanted to learn tricks and I wanted to trail ride. I wanted a pure breed dirk bike although i was told at the dealer in pa you can't title over a pure breed after 2006. I didn't want a 650 either i got a power house. I wanted a jumper. I was looking at a KTM EXC 450 but it was to tall for me it wasn't the SX either you cant jump it 100 ft across. I finally found the only bike i thought looked great and met my needs DRZ400 I was looking at the Yamaha 250 WR but it was only 250 I also read that it has trouble even doing highway speeds. YouTube DRZ's looked better then the KTM EXC. Also I relaizsed it wasnt the pure breed motocross bike it was like the Baja version i didnt want that.
I thought that the DRZ was in performance the lowest enduro money could buy heck it was 6600 1k less then the pure breed that doesn't even have lights. I thought again it was really good on gas but sucked in every other way. But i was very wrong it is an awesome bike they use the engine in the sport ATVs that are considered fast. I like the fact its a chromoly frame its stronger then aluminum. It less rigid too and the weight difference is like 50 lb.. Also you get a locking gas tank these are small things but they add up when you have to do the whole bike to make it street legal. I was not only does it look great it is fast no complaints you can get you license suspended on it.
Man I love this bike and i haven't even made modification with the exhaust yet. It was so powerful it out performed the BMW 650 I test drove. Now I am happy the way it is in power it has out performed my initial idea of it. It's not the lowest non real dirt bike I first thought. Its a real dirt bike that works very well on the road.
I want to bore it out to a 450 also I have no budget and I want it done right. I do want to keep non fuel injected that means carborated but as you can see m spell check isn't working. Also what will the hp and torque increase with a big bore 450 kit. I am having the dealer do it so i have no problems with it. I did see like 60hp claimed in the bore kit is that correct that pure dirt bike stats. What about torque pure dirtbike stats for torque?

[GeMs]

Well I dont remember saying that I bought the Yoshi Ti and the suspension work. So I did not have to buy them. If they weren't on the bike I would assume I would have gotten it for cheaper.

What do you mean I'm not including a bunch of parts I haven't bought? That $2600 is the total for the carb, big bore, crank, valves, springs, cams, spacer, gaskets, porting, degreeing, shim kit, and labor. Deducting the sale of the 39mm fcr, and I only took off 250.

Even if the bike didn't have the Ti, Brembo, and Suspension when I bought it It would still be cheaper than the 610. Ill even leave the bike at the price I paid for it with all the extras.

06 DRZSM........4000
MRD/SSW..........450
Eddies 470.......2600
Brembo.............700
Suspension........250
Total...............8000

So all in all. You get a more powerful. Lighter. More reliable. Better parts availability.
Less maintenance intensive bike. For cheaper than a brand new Husky.

[w00ht]

Burned's motor's make so much power because of the long amount of development time he has in building and tuning them. That time costs and spending that much on a DRZ would be better served on a higher performance bike in my opinion. It's a lot easier/cheaper for Burned since he's a pro wrench and the jetting mod at TT.

And $9200 for an 450EXC! I built this for $9500 in 07! Marchesini's, 6 pot Beringer, matching radial M/C ETC...

[b.h.]

For cheaper than a brand new Husky.

again, apples vs oranges

for $8k you can get a used 690smc or a used 610 w/ 2500 in mods

[iwantaSM]

buy a sport bike for the highway and keep the durz for fun=]

[GeMs]

Who agrees that the 510 is a faster lighter bike than the 610? Better components? Could you imagine one of them fully race prepped and how fast it would be?

http://www.thumpertalk.com/forum/sho...ight=60+hp+drz

"heres a comparison graph that shows real world what happening.

you gotta get all the here say and magazine dribble out of your head."

"run7= stock 525 ktm
run8= fully race prepped 510 husky smr
run9= fully race prepped 525 ktm
run147= this current drz 470
run651= a real 60hp crf 450"

[cobongo]

i was looking for those exact charts.. lol.. i knew i had seen it somewhere but i couldnt remember where...

[HPIguy]

Maybe it's just me, but at some point you just have to ask yourself if the cost vs. benefit ratio is there. The DRZ is a dated design, and that has plusses and minuses to it. I bought my DRZ knowing all the pros and cons of it, and it was a conscious effort on my part and I love the bike for what it is. But for me at least, before I spent almost the cost of the bike new in motor work and brakes, suspension, etc......I'd just get a different higher performance bike and keep the DRZ for what it does best........run forever with little maintenance.

[SwitchThrottle]

Interesting. Just for laughs I looked at the KBB retail values between an '06 DRZSM and a '06 SM610. The 610 is only $600 more. The OP wanted more grunt and better highway manners "as long as i dont spend a furniture." So I am curious. How much motor can you build in a DRZSM for $600?

Before you start trashing me for being an elitist and a DRZ trasher, realize that I am only pointing out the cost benefit economics of the OPs options. The DRZ is a great bike, and it certainly deserves it's recognition, but the Husky is a whole lot more bike for only $600 more.

Also, don't say maintenance is more on the 610. Oil and valves every 3k miles. You should be doing that on either bike.

[HPIguy]

Also, don't say maintenance is more on the 610. Oil and valves every 3k miles. You should be doing that on either bike.

+1 on that Switch, or sooner on the oil. And if you shop around you can get a new one for not much more than a DRZ, I know, I called.

[w00ht]

+1 on that Switch, or sooner on the oil. And if you shop around you can get a new one for not much more than a DRZ, I know, I called.

The only downside to that HPI is not everyone is lucky enough to have a husky dealer close by. KTM is harder toc ome by but suzuki is everywhere.

[HPIguy]

The only downside to that HPI is not everyone is lucky enough to have a husky dealer close by. KTM is harder toc ome by but suzuki is everywhere.

Why do you think I didn't buy the Husky?

[flyboybill]

Wow those number are incredible i would love to feel a 50 hp dirt bike again though my 400DRZ feels powerful.
I did talk to a kid saying that his dirt bike in the 0-60 was like faster then a CBR600RR I said no but then again the bike is much lighter anyways no doubt these bikes fly and that is a stock number 50. With modification I have seen 60 plus hp on high performance bikes.
The torque I have no comparison for that yet I dont know what 37 foot pounds of torque feels like with a geared down dirt bike. it must be a monster though. DRZ400 is great and it make with the yoshi pipe 35 hp. I am going to bore it to 450cc when the engine has high milage. I can't imagine possibly true torque around 20 pounds for a stock DMZ400 doing the percentage thing not sure though.


I have a question though for all you super motard guys, what is your favorite dirt bike brand and why. What do you guys go to the races with Honda, KTM Suzuki, Kawi?

[flyboybill]

What is all the mod stuff please explain i dont know what i am looking at. and what bike did you start with DRZ?

[ejg354]

Back to the question of the post. If your doing a lot of freeway riding, throw a smaller rear sprocket on. Then when you want to go have some fun, throw a bigger rear sprocket on. Chains and sprockets are cheap and easy to change out.