B18 Stroker Cranks... Tuner Toys wants your opinions.
 

(Mods feel free to move this if GD is inappropriate...)

Hey Guys,

Our connecting rod manufacturer now offers stroker cranks for the B18A and B18B engines. The are available in 4340 and 4130 Forged Steel, and in strokes of 89, 92, 95, 97, and 98mm. I have seen a couple of samples of these, and they look pretty nice, they even appear to be knife-edged from the factory.

So do you guys think this is something we should carry? We should be able to offer these at almost half the price of the equivalent Eagle offering.

Post up and let us know!

Craig

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

mabey if anyone gave a ---- about all motor stuff, I dont think anyone would buy them for a boosted motor.

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

I never understood why stroker kits were no good for boosted motors, but if they made them for a B16 I'd be interested.

For an LS motor...probably not.

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

These would sell well on Honda Tech for all motor guys if they dont hate on it because its not Full Race or ERL approved :-\ A stroker crank for the B16 would be handy though :6

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

That sounds like a good topic to research...

Ditto, maybe I'll research by calling Eagle and getting their opinion on boosting with their Stroker Kit...

I got tired if the "quick to hate" crowd on HT a long time ago. I try to stay away from there if at all possible.

Thanks for the input guys and keep it coming please!

Craig

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

I love my stroker.

:)


Why dont people want them in boosted applications? I dont get it? Larger displacement....forged crank, what would be the downfall?

Also, how well are these things balanced?

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

they already exist for damn near free... a B18C 87.2mm crank, B18A/B and B20B/Z 89mm cranks will both swap into a B16A just fine... there is no need to buy an expensive ass aftermarket crank for that, stock cranks are good for shittons of boost/HP...

and.....77.4 FTW :-*

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

84mm FTW :D

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

Holly ----!! Stuff that 98mm. in a B16 block. :4

I bet at least one person gets into to the R/S BS. Meh, I'd kinda like to try one out but I do't know if they would be a hot seller for you.

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

my thinking craig...find a block, build it, post it along with all of the dyno sheets, pics etc. etc. etc. and see how people react.



As someone else said, it might not be a HOT seller but im sure you would sell them if people knew it was out there. Your rods sell...so why not the crank also? Is it a large $$ buy in? Whats holding you back from stocking it?

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

I'd buy 1 98 and 2 95's. People love those stroker cranks around here. One of my good friends is running a 98mm crank in his all motor car right now.

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

I enjoy popping the hood and sayin "look, its only a B16" :4

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

well i enjoy popping the hood and sayin "look, its only a B16 TURBO" :4


:8

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

yeah, so anyways, im anxious to hear what craigs got to say about this...

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

Yeah, when LS shorties are practically free, you're going to pay top $ for a crank just to retain stupid OMG JDM B16 block stamp. ::)

I'd boost the hell out of a stroked engine, but only 1.8 block so I'd actually get a significant bump in displacement. My only concerns are quality... if they are like your rods, sold American. If they are a low end crank that has balance or wear issues, puke.

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

Yeah, I too wonder about the stigma that these are for all motor applications only. I figure that with the increased torque of the longer stroke, the thicker sleeves of the B18A/B vs B20 thinner sleeves, that a turbo'd stroker would be a pretty cool combination...

So am I to assume from that statement, that just about any "B" crank will fit into any "B" engine? It then is just a matter of finding a good combination? If so, then the only advantage of these cranks is if the factory cranks are not built of the same material as the aftermarket cranks, and the aftermarket cranks being knife-edged from the factory.

Yeah, I don't want to waste a lot of time on a product that isn't going to sell well. That why I wanted to get you guy's input first. I can always count on HMT to be direct and honest, and sometimes brutal. :)

We are getting ready to do a B18B swap into an EG, and then boost it. Maybe once that is done, we can stroke it and see what happens.

My only hold back was that I don't know enough about swapping cranks, and hate to sell something that I don't have personal experience. In absence of that experience, I turn to you guys to draw on your expertise.

Other than HT, where do these guys hang out? I'd like to post up and get some input from some folks who have had first hand experience with these.

Yeah, we've had excellent results with the H-Beam rods, other than a few fitment issues. The manufacturer has been real good about taking our input on the changes needed to the rods to make them an excellent product. We've never had a failure, out of hundreds of sets sold.

Maybe I shold pick one of these cranks up and have our local machine shop evealuate them like I initially did before selling the H-Beams. Have them balance it and mic it for size and tolerances. Then I could use it for a stroker build and do a write up.

Thanks guys and keep it coming!

Craig

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

I'm interested in it myself, I am going to build my engine soon, though i have no car to put it in yet :'( :'( ... how much are we talking? You said half the price of an eagle equivalent, but i have no idea what that is. And are you talking just selling the crank by itself?

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

If you do stroker cranks, you should do a package deal of rods/pistons in there as well ;)

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

question: so are you going to be selling the rods that go with these cranks? if you have a longer stroke your gonna need either a shorter rod or a set of pistons with pins that are set higher in the piston, or both...

yeah Craig, the B16A, B16B, B17A1, B18C, and B18A/B & B20B/Z all share the same main bearings, flywheel bolt pattern, and crank snouts... now the rod journals are different withs and you will need the correct set of rods for them. i also remember people using [modified] B20A5 cranks in B18 motors, think the Crower cranks where based of these?

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

and what displacement would the 98 mm put a b18b?

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

https://upload.wikimedia.org/math/c/...ac5de10516.png

:6

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

81mm bore X 98mm stroke = 2020cc
84mm bore X 98mm stroke = 2172cc

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

dayum... this makes me wanna go all motor

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

Expensive + Low power gain = N/A tuning

Turbo + Nig Nog boost = HMT

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

my car has under 200hp. it has whopped on several higher HP cars. it all depends what you want. remeber that.

lets not turn this into that sorta thread...
on another note, Craig, I see no reason why you shouldnt run the product IMO. And the only way to get any sorta knowledge is to get one and check it out yourself. Like a few others said, if you offer the crank your going to have to offer the rods and pistons to go with it, im sure you were aware of that though....

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

Craig,

Mainly honda-tech. and then the local guys from the shop i work at love all motor

I have built 1 motor using a b20a crank with a modified jeep main bearing/thrust washer and the rest honda bearings, it was a pretty interesting setup. still runs to this day. reving out to 9000 rpm's and making 280 hp. Only downfall is you have to shave the sides of the block because the crank/rods hit. its not to much tho... well i guess there is two downsides, he only makes about 10 passes and changes his rod bearings.

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

Its much much easier to engineer and manufacture a rod than it is a crankshaft. There are way more stresses and the quality of the machining is much more important on a crankshaft. I have seen a few fatigue fractures with crankshafts and it would make me nervous to run something that isnt quite proven. I would send it to a machine shop and get their opinion.

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

your biggest problem is going to be the fact that its a relatively unknown manufacturer, and nobody has any numbers to back these babies up.

get yourself a motor making good hp with one of these cranks to prove the quality, and i think they would sell like hotcakes

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

I might be interested for my Budget N/A (I know budget/power and N/A YA RIGHT) LS/Vtec Build. But it won't be for a while now, and if I can afford it!

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

Build a NA engine that spins pretty high (depending on stroke, 9K would do, for the smaller strokes 9500) and then tear it apart at the 500 mile mark to check bearing wear. Replace and tear apart again after 1000 miles. That should tell all, and pictures are worth a thousand words.

A shitty RS is great for a turbo engine, the dense AF mix ignites super fast, and the piston drops way down super quick decompressing it before it goes bang. Good stuff.

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

Craig, just curious what the verdict was on these? Im about to pick up 2 B18C motors and wouldnt mind stroking one of them. :y

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

wat would be cool is one for a d series. The only way id buy one is if i was building a motor from scratch or if the one i had was fucked up.

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

any one figure out whats wrong with stroking a boosted motor?
HCI last year did a b16 stroked to a 2liter and boosted it, made ~750bhp, i have the article somewhere it was a good read.

not that i think of it. The GM ecotec that makes 1400hp is a de-stroked 2.2l ecotec..de-stroked to a 2.0l. the point was that the shorter stroke put less stress on the cylinder walls during combustion because of the rod/piston angle put to much force on the cylinder wall with a 2.2l

could be the same issue here.

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

We're going to buy a couple, try one out ourselves, and have a member here on the board who wants one. Not sure if we are going to carry these as a regular item yet. But will keep you guys posted.

Thanks from Craig

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

I might be interested in a set. LMK.
BTW, not LS, but GSR.

PM me.

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

it doesnt matter if its an ls or gsr, same main bearings.

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

:y Bisi' also has a DE-stroked F22A...its destroked to 2.0 levels.....then bored as far as they could go :y

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

Like jd has brought up the cranks need to be balanced within reason unless you want some serious problems. The demand for 95mm cranks imo just isnt there

The all motor crowd has already leaned to the k series world and really when you can make 600 whp on a 84x89 motor with a good manifold/head set up well no need for a bigger motor

Re: B18 Stroker Cranks... Tuner Toys wants your opinions.
 

true, Id also have to say that they wouldnt sell that good :-\