BNR S4 Build in Florida

[mituc]

Originally Posted by knocturnal i had my car tuned in that weather and never had issues. i went to meth after just for better numbers

Big power stock block - what you should know
Now you know, so be prepared.
Ringlands crack because of excess of heat, tuned or not, with meth or not (meth helps, but when people use it also up the boost and timing).

Originally Posted by PearlySpeed Yep, 88mm Manley pistons. Luckily, the bores were fine.

If the bores are fine and you can use 87.5mm pistons I'd return the 88mm pistons and get 87.5 instead.
If something happens again (and on tuned cars chances are that it will) you at least have what to bore into. If you have any bore issue with a block already bored to 88mm the options are limited, basically you need to get some custom pistons (probably Arias, and have them machined). Also, you'll also save some money on machining the block. I also had cracked ringlands on #2 and #3 and the block was absolutely and totally mint in factory specs, but I already had the 88mm pistons and in my case it's less easy to return a part from the other side of the planet and get a replacement.

Also make sure you add a meth kit to your build. If you don't plan to up the power with meth then just tune it to the max with pump gas and spray water+meth through a DO3 nozzle or something. However, with stringer internals and the CS turbo you can use some Do12 (or equivalent) nozzle and shot well above 400bhp.

[PearlySpeed]

Progress pics finally, had to get a new block from Mazda so I went with stock bore manleys, I'll keep the 88mm Pistons when rebuild time comes around again.

[rocknrolla47]

Originally Posted by PearlySpeed Progress pics finally, had to get a new block from Mazda so I went with stock bore manleys, I'll keep the 88mm Pistons when rebuild time comes around again.

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Originally Posted by rocknrolla47 Awesome , I had to bore mine , cyclinder #3 was fucked lol. Got 88mm wiseco pistons with Manley h beam rods and oem bearings , apt head studs and main. What bearing did you go with ? I was tempted to go with the clevite h series but opted for the oems for a semi daily Speed3 , also got balance shaft delete and jbr oil pan baffle , act hd clutch with streetlite flywheel , Damond motorsports vented oil catch can , Matt Damond pcv plate , and corksport injector bushings. Plan on getting 5th and 6th port later. All this on the bnrs4. Sent from my iPhone using Tapatalk

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[PearlySpeed]

I went with oem bearings as well. Future fueling plans for me are going with the Damond ST port injection adapter.

[PearlySpeed]

Couple mock up pics

[PearlySpeed]

It's finally alive! First start, everything went smooth. No codes, no leaks, no smoke, runs smooth and feels strong.

[Jonb82]

Hell yeah. How long has it been down for?


Sent while probably pooping

[PearlySpeed]

Damn near 4 months. I started pulling the engine 2 weeks before my son was born, so I've been lucky to get 10 min a day to finish it until recently. Do you work at ultra tech?

[tmillner]

Did you get all you ic piping powder coated? Looks good

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[Jonb82]

Originally Posted by PearlySpeed Damn near 4 months. I started pulling the engine 2 weeks before my son was born, so I've been lucky to get 10 min a day to finish it until recently. Do you work at ultra tech?

Nope I manage a restaurant


Sent while probably pooping

[PearlySpeed]

I just painted it with spray cans

[PearlySpeed]

BYE BYE S4 hello BorgWarner. Changing some things up with the setup. Running a FJ Performance T3 manifold and this BorgWarner with the JMF intake manifold and 6th port. Should be able to hit 500whp comfortably with good response

[JFSpeed3]

Why the change from the BNR S4? Did it just not meet your power goals or where you ready to go for more power now? Just curious since I was looking into the BNR S4 for my future upgrade path. Thanks

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