1991 Honda CRX: Custom fab'd turbo kit & wire tuck

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08-31-2010 | 06:50 PM

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NeKe1point0

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1991 Honda CRX: Custom fab'd turbo kit & wire tuck

Customer came in to have us fabricate a custom turbo kit for his spotless CRX.

We started her up and noticed something didnt sound quite right. We were told the engine was recently built and shouldnt have any issues. A quick compression check after long warm up and we found there was definitely a compression issue.

cyl 1 200psi
cyl 2 200psi
cyl 3 200psi
cyl 4 100psi

After performing a leakdown test it was pretty clear the exhaust valves were def to blame.

(The owner tells us the engine had previous issues of bent valves so it didnt suprise him

)
We advise to solve the low compression issue before moving forward with any turbo fabrication.

so it is what it is, time for disassembly

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Proven Power LLC
4505 N. 56th street
Tampa, FL 33610
813-988-DYNO(3966)
www.ProvenPowerTampa.com

DYNO TUNING/CUSTOM FAB/METAL POLISHING & PORTING/ENGINE SWAPS
CHIPPING & SOCKETING/ELECTRICAL TROUBLESHOOTING/WIRING

Last edited by NeKe1point0; 08-31-2010 at 07:04 PM.

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08-31-2010 | 08:44 PM

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the_third_lobe

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pretty clean car

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08-31-2010 | 09:14 PM

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Deceiving Honda

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u wouldent have that problem with a rotary haha

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09-01-2010 | 02:09 PM

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marktopia

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^^^lol just a problem with the apex seals

haha jp. the rex is deff clean. sucks about the valve but atleast hes getting it done at the right shop.

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09-07-2010 | 10:04 PM

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USDM4g4d

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moarrrrr

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09-08-2010 | 04:50 AM

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NeKe1point0

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Unfortunitly the engine was improperly assembled/bored by a local machine shop. Had to pull and send back for inspection.

The machine shop confirmed the 2 bent exhaust valves we advised. Once the head was pulled it was pretty clear the piston to wall clearance was WAY too much. So we had the owner come and pick up the block as well.

The pistons had an 1/4" of play. Yes, i just used an inch (") abbreviation.

Updates soon !

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Proven Power LLC
4505 N. 56th street
Tampa, FL 33610
813-988-DYNO(3966)
www.ProvenPowerTampa.com

DYNO TUNING/CUSTOM FAB/METAL POLISHING & PORTING/ENGINE SWAPS
CHIPPING & SOCKETING/ELECTRICAL TROUBLESHOOTING/WIRING

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09-08-2010 | 02:31 PM

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marktopia

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holy shit lol. wow thats horrible haha

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09-09-2010 | 01:52 PM

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HonkeyDong

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wow this is why I only let 1 person touch my motors...

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09-15-2010 | 05:53 PM

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NeKe1point0

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Just a little update on this thread. Customer returned the engine to the machine shop. They confirmed the piston to wall was .007, and the 2 bent exhausts valves on cyl num 4. Since things didnt go to well at the machine shop the first time we decided to go a different route

We have located a block and plan to send it out for machining this week ! Hopefully we can start on the turbo build soon...

Pics of the teardown.. Royal purple break in oil all wasted