Let's settle this once and for all - modded S52 vs S50B32

[Hammdy]

I don't know how much an S50B32 may go for, but I'd guess that you could get one for cheaper than building this motor yourself:

S52 OBDI (obviously includes a chip, OBDI intake, etc)
11.5:1 forged pistons (perhaps .25" overbore)
lightweight conrods
schrick cams
possibly solid lifters and stronger springs (how about an 8k redline? :devillook )
and some other crap

is that motor going to be putting out as much power as the S50B32? and if anyone has built such a motor how much do the pistons and conrods cost? and FI will not be considered. Basically which one is more cost effective? I hear people saying that getting an S50B32 costs like $9K, but I know that one can be acquired for way less than that.

[Serious]

that motor would stomp s50b32.

s50b32's main advantage is the hotter cams and solid lifters.

i dont know if id want a motor like that in a street car though. overboring on a siamese block like s50/s52 is kinda sketch IMO. solid lifters are a pain in the ass.

[Hammdy]

yeah there's so little space between cylinders. I was checking out turner motorsports and they sell wiseco .25 overbore pistons for the S52 and was thinking to myself "I don't think there's even a quarter inch between cylinders". Solid lifters aren't that big of a deal. You guys must never work on motorcycles.


oh yeah S50B32 has one more thing over ours: higher compression

[GotBHP?]

yeah there's so little space between cylinders. I was checking out turner motorsports and they sell wiseco .25 overbore pistons for the S52 and was thinking to myself "I don't think there's even a quarter inch between cylinders". Solid lifters aren't that big of a deal. You guys must never work on motorcycles.


oh yeah S50B32 has one more thing over ours: higher compression

Uhh well taking out a motorcycle cam is probably a lot easier than taking one out of an s52...cuz thats what you have to do to adjust the valves every 15k miles. The s50b32 also has a very efficient head, where as the US motors dont so much.

Ever consider dropping in an s54? Puts out more power than either motor, and costs less than a euro motor.

[cosmosm3]

I don't know how much an S50B32 may go for, but I'd guess that you could get one for cheaper than building this motor yourself:

S52 OBDI (obviously includes a chip, OBDI intake, etc)
11.5:1 forged pistons (perhaps .25" overbore)
lightweight conrods
schrick cams
possibly solid lifters and stronger springs (how about an 8k redline? :devillook )
and some other crap

is that motor going to be putting out as much power as the S50B32? and if anyone has built such a motor how much do the pistons and conrods cost? and FI will not be considered. Basically which one is more cost effective? I hear people saying that getting an S50B32 costs like $9K, but I know that one can be acquired for way less than that.


I will let you know, if I ever get time to hit the dyno. See sig. :evil2

[Hammdy]

I will let you know, if I ever get time to hit the dyno. See sig. :evil2
are those the wiseco pistons that turner motorsports sells? I would have expected higher compression.

[cosmosm3]

are those the wiseco pistons that turner motorsports sells? I would have expected higher compression.


No, they are not from Turner. I got them straight from Wiseco. I didn't want to go to high on the compression, because I street the car some.

[vjlax18]

No, they are not from Turner. I got them straight from Wiseco. I didn't want to go to high on the compression, because I street the car some.

When are you going to dyno, and where? We should dyno together on a dynojet somewhere.

I really can't give out the little bit of info on my motor specs, but it does have forged piston and Schrick cams.

[cosmosm3]

When are you going to dyno, and where? We should dyno together on a dynojet somewhere.

I really can't give out the little bit of info on my motor specs, but it does have forged piston and Schrick cams.


Probably not in the near future. I am trying to get prepared for my wife and my first baby, coming in the next week or two. :D

[cosmosm3]

are those the wiseco pistons that turner motorsports sells? I would have expected higher compression.


Also remember that if you have the combustion bowls on the head clean or ported that it will decrease the compression, even if you have rated compression pistons.

[vjlax18]

Oh, and back to the orginal topic. You can get just as much power out of the S52, but the redline won't be as high.

[=BA=]

I don't know how much an S50B32 may go for, but I'd guess that you could get one for cheaper than building this motor yourself:

S52 OBDI (obviously includes a chip, OBDI intake, etc)
11.5:1 forged pistons (perhaps .25" overbore)
lightweight conrods
schrick cams
possibly solid lifters and stronger springs (how about an 8k redline? :devillook )
and some other crap

is that motor going to be putting out as much power as the S50B32? and if anyone has built such a motor how much do the pistons and conrods cost? and FI will not be considered. Basically which one is more cost effective? I hear people saying that getting an S50B32 costs like $9K, but I know that one can be acquired for way less than that.

So what's your point? You are basicly duplicating the whole idea of the euro engine. :confused

If all but F/I mods are allowed offcourse you can build a better engine.

[like2short]

At the power levels you guys want to play at, the biggest limiting factor on the S52 with an OBD-1 manfilod, will be the manifold itself, it just won't breath enough after about 320 hp.

If you were to build an S52 to the spec you listed above, it would be very expensive and cost in excess of $10,000, perhaps $12,000 or more and you'd still need to find somebody to TUNE it or pay for an aftermarket engine management system. The big costs on the hardware side would be:

1. Pistons around $700
2. Con Rods, if you go this route $1200-$1800
3. Cams, the Shcricks are around $1200
4. Larger HFM, around $300
5. Solid lifter valve train, i dunno how much this is
6. Head work....i dunno how this is.
7. dyno time/tuning, this can get expensive at around $70/hour
8. Headers
9. Plus Labor to put it all together.


Yes, 3.2L with strong valve train, 11.5:1 compression is basically what the factory did....with the S50B32 (Euro).

[vjlax18]

More then $10k... don't ask me how I know.

[cosmosm3]

More then $10k... don't ask me how I know.


Agreed :(

[ceegeezM3]

I was checking out turner motorsports and they sell wiseco .25 overbore pistons for the S52 and was thinking to myself "I don't think there's even a quarter inch between cylinders".

.025 overbore, not .25

[Def]

.025 overbore, not .25

It's probably a 0.25mm oversized piston, as opposed to a 0.025inch oversized piston. 0.25mm is a very common "first factory oversize" - while I've never heard of anyone spec'ing 0.025" on an overbore(it's usually 0.020" or 0.040" - basically half a millimeter on each step up.

[Hammdy]

So what's your point? You are basicly duplicating the whole idea of the euro engine. :confused

If all but F/I mods are allowed offcourse you can build a better engine.
I'm wondering which is cheaper: build an S52 up to 320ish HP or just buy an S50B32


At the power levels you guys want to play at, the biggest limiting factor on the S52 with an OBD-1 manfilod, will be the manifold itself, it just won't breath enough after about 320 hp.

If you were to build an S52 to the spec you listed above, it would be very expensive and cost in excess of $10,000, perhaps $12,000 or more and you'd still need to find somebody to TUNE it or pay for an aftermarket engine management system. The big costs on the hardware side would be:

1. Pistons around $700
2. Con Rods, if you go this route $1200-$1800
3. Cams, the Shcricks are around $1200
4. Larger HFM, around $300
5. Solid lifter valve train, i dunno how much this is
6. Head work....i dunno how this is.
7. dyno time/tuning, this can get expensive at around $70/hour
8. Headers
9. Plus Labor to put it all together.


Yes, 3.2L with strong valve train, 11.5:1 compression is basically what the factory did....with the S50B32 (Euro).
that's a lot of money. what in this case I'd probably not get connecting rods....and of course I'd be doing the labor so no labor charges other than some miscellaneous ones.

[MdMcoupe]

I saw this laying around the shop....vjlax18 can vouch for me!!

[Hammdy]

I saw this laying around the shop....vjlax18 can vouch for me!!
i'll give you $500 for it.

[MdMcoupe]

This picture has BOTH the motor's you are talking about!! A Stickley built OBDI motor, that is to the left of the S54, and it is still in the clear wrapper. And the Euro motor that was previously posted!! They are both awesome!

[MdMcoupe]

i'll give you $500 for it.




:lol

[=BA=]

You should try firing up that S50 without the airbox :devillook The sound is :eek:

And if I had to choose in the US, I would build the S52 to 320 HP.... because your aftermarket is a lot bigger. Parts are more easy to get hold of, and future upgrades will still be a lot more easy. And also, your dealers have more S52 expierience than S50B32 expierience.

For serious aftermarket work on S50B32 you need some very serious money... cams alone for example will cost you a fortune, and then you don't even have the tuning yet. (a set of shrick cams for S50B32 went for 3000 euro on ebay the other day)

That's why i'm sticking to a Ecu reflash and 3.62 gearing upgrade... the rest just isn't worth the cost to me.

[vjlax18]

S52 to 320+ HP is going to be a full rebuild or basically a new motor. A euro motor may come with that much power, but you are talking the same price for a used euro as a fully built US motor. Once you get the euro, you'd have to rebuild it eventually (mileage/wear is never certain on a used motor) which will cost a small fortune.

Jason, how old is that picture? That wrapped motor looks just like mine. :D

[=BA=]

A full engine rebuild of the euro engine will cost you around 3200 euro's here, so that shouldn't be a problem. Only we have more company's here who will do that, so probably gonna be cheaper over here.

[vjlax18]

An S54 rebuilt is going to be at least 50% more then an S52, and we have S54 parts here. :dunno

[=BA=]

Yep, but I meant for the S50B32..... I don't think your retailers have parts ready for that :)

[vjlax18]

That's what I mean. 50% more for and S54 and we have the parts. I can't imagine rebuilding a euro for anything less then the S54.

[=BA=]

Exactly I think you're right. :)

[vjlax18]

So we're talking >$25k for a rebuilt euro, and around $10k for an S52 (If you have the motor already).

[MdMcoupe]

Those pics are from this weekend!! The Euro is going in Brant's old Hellrot M3, that Jeff bought, and when Jeff is down it will be a master piece!! OOOPPS gotta go here comes the boss!!!1

-FMENTAL

[Hammdy]

so it looks like we are leaning towards built S52. that should make serious happy...he sure hates the S50B32.

[yellowbullet]

For serious aftermarket work on S50B32 you need some very serious money... cams alone for example will cost you a fortune, and then you don't even have the tuning yet. (a set of shrick cams for S50B32 went for 3000 euro on ebay the other day)

how come the schricks went for so much? they're only $1300 from VAC Motorsports (here (http://www.vacmotorsports.com/cgi-bin/view_item.pl?item_id=281)) or am I missing something? did the auction include software?

[Serious]

so it looks like we are leaning towards built S52. that should make serious happy...he sure hates the S50B32.

not at all s50b32 is an awesome motor. but IMO swapping it for s52 is stupid since you can make near the same power with cam kit and exhaust. now if you moneyshift or destroy your s52 and have to buy a replacement motor s50b32 is a good option.

but there is alot more maintance and parts are alot more expensive for s50b32 in U.S.