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B20a5 Boosted Build Thread 2021

2770 Views 33 Replies 2 Participants Last post by  3rdmemberofOUTKAST
Soooo just wanted share my build list so far and what not..

B20a5 Block
B21 Exhaust Cam
B18 Intake Cam
PO6 Hondata S300 v3 ECU
Boomslang OBD1 Jumper Harness
450cc Injectors
Cometic Head Gasket
Custom T3 Turbo Manifold
B16 81.5mm 10:1 Pistons
H23 Eagle Rods
Aluminum Lightweight Flywheel
Whatever Clutch I slap on this thing..
on E85

(this will not be a daily driver mostly for drag/track days)

Haven’t decided on a turbo yet but I want to shoot for 350~400whp.
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You can no upload directly to the forum with their new features. Add pics, we all love pics.
You can no upload directly to the forum with their new features. Add pics, we all love pics.
Oh yes.. pics will be definitely coming once I receive all the parts I ordered. Still waiting on a lot of stuff.
The b16 pistons were too much of a hassle for any machine shop to modify so I settled down a bought a set made for the b20a5.. so if anyone needs a good price on some NEW WISECO B16a 81.5mm pistons.. shoot me a message on Instagram @groovytonyintl
The b16 pistons were too much of a hassle for any machine shop to modify so I settled down a bought a set made for the b20a5.. so if anyone needs a good price on some NEW WISECO B16a 81.5mm pistons.. shoot me a message on Instagram @groovytonyintl
Really? No machine shop wanted or could do it?
Really? No machine shop wanted or could do it?
nope.. no one wanted to do it. there was a shop that could’ve done it but they said they strictly work with only v8 stuff.
nope.. no one wanted to do it. there was a shop that could’ve done it but they said they strictly work with only v8 stuff.
Ehhh...that sucks.
Yeah if they would have done it, it would have saved you money parts wise.
Yea.. hopefully I can get rid of these b16 ones and recoup some of that $$$.
@1funryd I emailed you about purchasing an 81.5mm bore Cometic head gasket.
@1funryd I emailed you about purchasing an 81.5mm bore Cometic head gasket.
I dont see an email from you? What was the email you sent from?
I dont see an email from you? What was the email you sent from?
[email protected]
Sorry Anthony, I do remember seeing that email and meant to respond but forgot.
I replied back to it, please check it.
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It’s almost a complete engine again.. still needs a Cometic Head Gasket(Test Fitted with a Stock Replacement until it gets here) & ARP Head Studs to tighten it up.
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Transmission is in.. Engine is half way in thanks to my homemade engine hoist 🤣 just waiting on flywheel and pressure plate bolts to bolt everything down. Ahhh‼ it’s getting so close to firing back up again - Subscribe to my YouTube channel to follow the build.. Groovy Tuning
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Bolts just landed!! Engine(No Head) and Transmission getting put back together this weekend. Getting closer and closer to startup.
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I finally got around to those rear upper control arm bushings.. No more wobbling in the rear.
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View attachment 30727
View attachment 30726 I finally got around to those rear upper control arm bushings.. No more wobbling in the rear.

Pretty easy wasn't it?
Not sure why so many find it hard to do this...
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