1.5 Turbo Motor Build

PRL Motorsports

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We figured that it's only a matter of time before somebody pushes the 1.5T platform to the max and know that we will eventually need an engine with forged internals. We decided to follow suit with the rest of the platforms we're involved in and develop a motor program for the 1.5 Turbo.

We will be using brand new OEM Honda Si cylinder blocks, crankshafts oil jets/squirters, gaskets and hardware.

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0715_zpssav33bgv

2017+ Civic Si block

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0743_zpseepnmtym

Notice the coolant passages at the tops of where the sleeves intersect. Also notice the aluminum cast around the top layer of the iron sleeve.

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0718_zpsbzsven

Main caps; no main girdle here. Honda's past K-Series motors featured a factory girdle system.

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0725_zpskdpiyac

Awe look how cute! 73mm Si 10.3:1 compression piston.

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0727_zps6vebslfz

The factory piston features a narrow piston skirt with a unique "spotted" friction coating.

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0729_zpsgatqgw9w

These pistons also have quite a bit of material between the rings; A rather beafy design.

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0732_zpskcoh3zbv

Such a cute little factory connecting rod!

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0740_zpsqoeaddkk

M6 rod bolts :(

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0733_zps6x21dh9t

The rotating assembly can ALMOST fit an a USPS Large Flat Rate Box! :lol:

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0734_zpsswmszkn3

The left side is a 2.0L Type-R connecting rod, right is a 1.5T Si connecting rod.

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0735_zpscseiymtc

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0736_zps8b9alts0

The left side is a 2.0L Type-R piston, right is a 1.5T Si piston.

Our goal is to offer a short block capable of holding ~500 whp. The build will most-likely consist of forged H-beam rods and forged pistons. We will be working to develop a drop-in piston set designed to mimic Honda's factory piston design. This will be extremely important for fuel atomization and combustion with the direct injection system. A ~10.3:1 compression ratio is a rather comfortable number for us as well, as it's high enough to keep turbo spool and response there, but not high enough that we are worried about detonation/knock issues.

We are also sourcing/developing a proper head stud and other components to be able to hold the power as well. Please stay tuned! :thumbsup:
 
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omigulay

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I just saw it on your instagram account. Very exciting news!

Is the block different between the SI and regular 1.5T?
 

05NBPDC5

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Just to clarify, Si is 10.3:1, ex-t is 10.6:1
 

05NBPDC5

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Also, I believe the left and right are reversed from your description.
 


cmwalton16

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We figured that it's only a matter of time before somebody pushes the 1.5T platform to the max and know that we will eventually need an engine with forged internals. We decided to follow suit with the rest of the platforms we're involved in and develop a motor program for the 1.5 Turbo.

We will be using brand new OEM Honda Si cylinder blocks, crankshafts oil jets/squirters, gaskets and hardware.

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0715_zpssav33bgv

2017+ Civic Si block

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0743_zpseepnmtym

Notice the coolant passages at the tops of where the sleeves intersect. Also notice the aluminum cast around the top layer of the iron sleeve.

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0718_zpsbzsven

Main caps; no main girdle here. Honda's past K-Series motors featured a factory girdle system.

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0725_zpskdpiyac

Awe look how cute! 73mm Si 10.3:1 compression piston.

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0727_zps6vebslfz

The factory piston features a narrow piston skirt with a unique "spotted" friction coating.

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0729_zpsgatqgw9w

These pistons also have quite a bit of material between the rings; A rather beafy design.

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0732_zpskcoh3zbv

Such a cute little factory connecting rod!

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0740_zpsqoeaddkk

M6 rod bolts :(

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0733_zps6x21dh9t

The rotating assembly can ALMOST fit an a USPS Large Flat Rate Box! :lol:

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0734_zpsswmszkn3

The right side is a 2.0L Type-R connecting rod, left is a 1.5T Si connecting rod.

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0735_zpscseiymtc

Honda Civic 10th gen 1.5 Turbo Motor Build DSCN0736_zps8b9alts0

The right side is a 2.0L Type-R piston, left is a 1.5T Si piston.

Our goal is to offer a short block capable of holding ~500 whp. The build will most-likely consist of forged H-beam rods and forged pistons. We will be working to develop a drop-in piston set designed to mimic Honda's factory piston design. This will be extremely important for fuel atomization and combustion with the direct injection system. A ~10.3:1 compression ratio is a rather comfortable number for us as well, as it's high enough to keep turbo spool and response there, but not high enough that we are worried about detonation/knock issues.

We are also sourcing/developing a proper head stud and other components to be able to hold the power as well. Please stay tuned! :thumbsup:
First a clutch and now this... OKAY take my money SI!!! :love::love:
 

maaaaackle

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Wait.

PRL, I think your left/ride side is switched. You're tellin me that the Type R connecting rod is THINNER than an SI?

WHAAAAT?

jk. i know.
 

supaslow10g

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should have bought a better trim......lol
and get the cvt you can't do much with and honda sensing I'll never use for 15 grand more. or pay the outrageous jacked up dealer prices I can't afford for a type r. a proper turbo kit for the lx and it'd basically be a type r under the hood plus some with a little beefier setup. and still be in it for less than 30k. I just hope someone shows some to the na 2.0 eventually. if not guess I'll have to stepup to a si now that they are putting out such serious upgrades for them.
 
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PRL Motorsports

PRL Motorsports

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I just saw it on your instagram account. Very exciting news!

Is the block different between the SI and regular 1.5T?
The part numbers are different, but there isn't much information out there about any differences. The Si block has been rumored to be stronger, but we cannot confirm this yet. From a monetary standpoint, though, the Si block is actually cheaper than the base 1.5T block!

Also, I believe the left and right are reversed from your description.
Wait.

PRL, I think your left/ride side is switched. You're tellin me that the Type R connecting rod is THINNER than an SI?

WHAAAAT?

jk. i know.
Apparently I don't know right from left! :doh: Oops haha

stop messing with these tiny toys and build a turbo kit for those of us that bought the lx for 2.0 and stick pls lol
That is a possiblity... We will see! ;)
 

JDM_DOHC_SiR

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You can still see the image but you have to click on the photobucket link... they changed their policy and reduced the storage size now to 2gb anything over that and you have to pay $$$$$:thumbsdown::doh:
Sponsored

 


 


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