10sec Engine Shortblock (Finally)

[Sean Krupa]

I started a Built engine thread couple years ago and didnt really take off like I planned. The time has come to where I'm able to finally build my Spare block. I'm goin to a Local shop that just recently built a Engine for a member and has had great results and happy with the shop. It's not guna be a rush job and just want to make sure it's done right and the proper parts.

I will be Supplying the Eagle Rods, Block, Stock Crank. I will further talk to the owner and see if they will get the 4 bolt main caps or me. I will also have the Crank nitrated by a local shop also that the above member had done. Not totally sure if I want to Partial/Half fill the Block as I drive it a lot on the street. Also, will be talkin about what Pistons to run.

The Shop uses DSS Pistons a lot and the Ty member is running them now also. They are light and Forged. They said I can use whatever Pistons I want once they figure out what Bore I need. I know a lot of guys use JE or Diamond pistons just don't want to spend a crap ton if a Certain lower level piston will be enough for me. Any thoughts?

Since I'm running E85 now I would like to Raise the Compression. Was thinking 9.5:1 or 10:1 and run less Boost to make the same/more power. How high should I run "Safely" on Corn??

I'll be updating this Thread once I actually take the Block to the shop in a couple weeks and made this now to Soak in some more knowledge as to what to tell the shop vs what they prefer.

Thanks!!

 

[ty166]

Re: 10sec Engine Shortblock (Finally)

What shop ??

 

[Sean Krupa]

Re: 10sec Engine Shortblock (Finally)

Pro-Automotive Machine Inc. located in Elgin

 

[Z SKI]

Re: 10sec Engine Shortblock (Finally)

I vote for a block fill... But remember, you will need to add an oil cooler back in to bring the oil temps back down..

I also vote for flat based main caps instead of the stepped base caps.. I've heard getting that correct airgap under the outside bolt area is difficult and very critical.. Ask Don W, he can explain it better than I can..

I'll probably think of more later... Good luck..

See ya,

 

[Syclone#892]

Re: 10sec Engine Shortblock (Finally)

I agree with Z Ski definitely do a half fill if you plan to run all out. With that make sure you run a good oil cooler and have a good cooling system.

I have not driven my syclone much yet as I haven't had a lot of time to devote for it over the years but I am finally getting some time for it now. So far my half fill block in 90 degree outside temps has gotten as high as 178 if I sit for a little while after driving, otherwise it stays around 172-175.
I have an aluminum radiator (I believe an old dequick), stewart stage 2 water pump with their high flow t-stat and ford taurus fan powered by pwm with my dominator. I'm sure I could tweak the fan setup a little better in the dominator but so far it seems decent, at 170 the fans are running 30% and at 180 they are 50%

Whoever is assembling the engine make sure to set the oil pan clearance for the rods!
And make sure to setup your dipstick before putting the pan on, this way you won't have to worry about it being ripped off by the crank or smashing into a main cap. I used the nice lokar dipstick but it took a lot of work to make it fit.

Good luck with the build

 

[Don W.]

Re: 10sec Engine Shortblock (Finally)

Thanks for the complement but that's pretty much it. My machinist won't touch stepped caps. Two schools of thought here though, some like and use the stepped cap.

Since 'm here.... CP pistons, also light and forged. I beam, not H, rods. Be sure to have it balanced. No mention of a cam. Something that's not talked about much but have someone degree the cam. ARP fasteners. Maybe studs for the heads. Be careful with boost -and- high compression. I've wondered about this actually. In a NA engine high comp is your friend, up to a point of course. In a blown application it's different. Meaning you're using boost to fill the cyl. The more you can cram in there the better. No? Lower comp allows more fill before knock. You're dealing with the difference between static compression ratio and dynamic (under boost) compression ratio. I need an engineer... :squint: :rotf: Injectors and tune?? Big job getting into the 10s. Good luck

 

[Sean Krupa]

Re: 10sec Engine Shortblock (Finally)

Thanks guys for the tips and keep them coming. Don, I already made it in the 10's last year and yes it was a big job. I just don't want to push the stock motor anymore which is running great. I will be reusing my cam, vortec heads, turbo and other related parts for the new built shortblock.

Since I broke into the 10's I have rebuilt the front diff, transfer case and this year my built trans output shaft broke but all the upgraded parts I had in the trans worked really good for the past 3-years. So for next season I want to finally have my spare block built and a
4l80e tranny.

 

[Jimmy]

Re: 10sec Engine Shortblock (Finally)

Block fill. With an oil cooler.These guys are pointing you in the right direction.I don't even know if you need 4 bolt mains with block fill,but it probably is a nice thing to have considering how much $ is in the build. Block fill is cheap insurance, and I drove a stockish motored Ty 100K with it,and spanked many asses.

LOL T-bag SRT 10 retardationwww.syty.net/forums/showthread.php?t=35776&highlight

Pay attention son.

 

[nallj92]

Re: 10sec Engine Shortblock (Finally)

My build was JE extreme duty, Splayed 4 bolt mains, Eagle rods, Partial Block Fill. I had issues with the 4 bolt mains and the stock dipstick, I ran a lokar and it is a PITA since it is so short, so try to make the stockers fit. I had the shop buy a set of SBC splayed caps and use those.

I still have A/C and a FMIC so it does get a bit warm with normal driving, but nothing I would worry about without the A/C.

I did 8.5 compression and it sucks, takes forever to spool and is a dog out of boost. I would do 9.5- 10 on E85. I just built a LQ4 that is 10.5 with a 76mm that does 800 whp, it is fun on the street and gets into boost super fast.

 

[graham1524]

Re: 10sec Engine Shortblock (Finally)

If you plan to stay in the 10's it may be good to get something a little beefier than the eagle rods

 

[Cronic fatigue]

Re: 10sec Engine Shortblock (Finally)

^ nothing wrong with eagle rods, plenty have run 10's and stay in 10's with them, crank and block weakest part in a syty build

 

[gringo76]

Re: 10sec Engine Shortblock (Finally)

so how much power is ok for a sy block , say with all the normal mods, rods, stock crank,good pistons, 4 bolt mains, ect?

 

[dgoodhue]

Re: 10sec Engine Shortblock (Finally)

Are you planning on increasing your HP or just building a motor for reliability?

 

[Sean Krupa]

Re: 10sec Engine Shortblock (Finally)

Are you planning on increasing your HP or just building a motor for reliability?

Great question and its more for reliability and incase I get the itch to up the boost a little, I will have the confidence it will hopefully hold together rather than keep pushing the stock block beyond its design limits..

" A man has got to know his limitations":lol:

 

[Z SKI]

Re: 10sec Engine Shortblock (Finally)

so how much power is ok for a sy block , say with all the normal mods, rods, stock crank,good pistons, 4 bolt mains, ect?

A few years back the dudes from Campbell automotive (Mark and Nolan) up in Canada did a lot of testing with built stock blocks and if memory serves me correctly, I recall Nolan stating that around 840 horse was the magic number before the blocks started to split... So less than that!!! :rotf:

 

[gringo76]

Re: 10sec Engine Shortblock (Finally)

A few years back the dudes from Campbell automotive (Mark and Nolan) up in Canada did a lot of testing with built stock blocks and if memory serves me correctly, I recall Nolan stating that around 840 horse was the magic number before the blocks started to split... So less than that!!! :rotf:

we dam don't sound like block needs to be poured if you stay around the 500-600 range then!

 

[SEL777]

Re: 10sec Engine Shortblock (Finally)

I think he's got a little more than than that HP, but to do this build with the turbo he's been to the 10's already, is really just for a better piece of mind. If there is one, when you push a SyTy to the 10's. The best part is Sean is super diligent with his tuning and will be able to get the most out of his new combo. It'll be fun to see first hand. For those who haven't met him or seen his truck in person....are missing out. His SyTy love was instilled at a young age, and runs deep in his veins.

 

[Sean Krupa]

Re: 10sec Engine Shortblock (Finally)

What Head Gaskets would you guys recommend? I've been running Stock Head gaskets since the Vortec head swap and haven't had any issues with the Power I'm making. With the new Engine doesn't the Block have to be a certain "smoothness" for the Cometics?

Thanks,

 

[graham1524]

Re: 10sec Engine Shortblock (Finally)

What Head Gaskets would you guys recommend? I've been running Stock Head gaskets since the Vortec head swap and haven't had any issues with the Power I'm making. With the new Engine doesn't the Block have to be a certain "smoothness" for the Cometics?

Thanks,

What surface finish is required to us an MLS head gasket?
A surface finish of 50 RA (roughness average) or finer, is recommended for a proper gasket seal. Anything rougher may conflict with the gasket design.

This is off cometic's website