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View Full Version : My blown motor, part III

HaLo
10-11-2004, 12:06 PM
Well, thanks to my girlfriend's help, we took time today to take off the head off the blown SR20DET...

First of all, my 3rd cylinder had 0 compression because of a broke exhaust valve. The rest of the valves seemed ok.

All pistons have serious detonation marks... They are not re-usable.

Hovewer, the block has no marks, no scratched... we still see the cross hatch everywhere... The block might off survive this pretty well. :D
nissantuner22
10-11-2004, 12:18 PM
awesome! good to hear something is salvageable.
HaLo
10-11-2004, 12:20 PM
Actually, most of the engine is salvageable..
replace pistons, rebuild head, and the engine is running again..
brianglawson
10-11-2004, 12:21 PM
sweet.....
Andrew Bohan
10-11-2004, 12:31 PM
il est bon entendre ce!
ThatGuy
10-11-2004, 12:59 PM
Good to hear HaLo! Good luck on the rebuild.
proj240sx
10-11-2004, 01:19 PM
mind posting pics of the block and head? im curious :D good to hear it wasnt as bad as you first thought.
wootwoot
10-11-2004, 01:29 PM
and you were going to scrap the entire thing...ai!
ZK
10-11-2004, 02:51 PM
Well, thanks to my girlfriend's help, we took time today to take off the head off the blown SR20DET...

First of all, my 3rd cylinder had 0 compression because of a broke exhaust valve. The rest of the valves seemed ok.

All pistons have serious detonation marks... They are not re-usable.

Hovewer, the block has no marks, no scratched... we still see the cross hatch everywhere... The block might off survive this pretty well. :D

Exact same thing happened to me. #3 cylinder had no compression because of damaged valves. My pistons were okay, a bit black but usable. The head went to the machine shop, was rebuilt and it is good now.

No more NA motor? :)
nissantuner22
10-11-2004, 03:02 PM
wierd isnt it. Number 3 always goes first.
TRUENOCOUPE
10-11-2004, 03:09 PM
No Pics No Care.

/end of thread.
HaLo
10-11-2004, 08:15 PM
http://www.apaspeed.com/oktay/head/IMG_0579.jpg

http://www.apaspeed.com/oktay/head/IMG_0581.jpg

http://www.apaspeed.com/oktay/head/IMG_0590.jpg

Pistons damage on pics is #2 cylinder, by far the worst of all 4...
Valve is exhaust side on #3 cylinder
proj240sx
10-11-2004, 10:40 PM
wow your piston looks exactly like mine. except my cylinder wall didnt make it out good like yours, damn you!!!
Steeles
10-11-2004, 11:48 PM
glad its salvagable mang! I lost #1 (compression down to 75 ) :(
silviasichigo
10-12-2004, 01:01 AM
Well now is a good time to get you some wiseco forged P's for $449 at prostreetonline.com and they have rods to really cheap. new valves, and valve springs, lash killer kit, 264 I/E cams, camgears, rocker arm stoppers, balanced crank, 3037 turbo, with a nice 38mm waste gate, 850cc injectors, oh and hey your girlfrend should help with that too hahahahaha :p j/k
HaLo
10-12-2004, 05:14 AM
Well now is a good time to get you some wiseco forged P's for $449 at prostreetonline.com and they have rods to really cheap. new valves, and valve springs, lash killer kit, 264 I/E cams, camgears, rocker arm stoppers, balanced crank, 3037 turbo, with a nice 38mm waste gate, 850cc injectors, oh and hey your girlfrend should help with that too hahahahaha :p j/k

And build a drag friendly, auto-x unfriendly car... no thank you. ;)
Anyways, her money should be spent on her car...
Steeles
10-12-2004, 10:36 PM
besides only CP makes a stock bore 9:0.1 piston for the SRs :) and I've already got 850cc injectors.
silviasichigo
10-13-2004, 05:59 PM
And build a drag friendly, auto-x unfriendly car... no thank you.
Anyways, her money should be spent on her car... Damn man you are too nice for me hahah yeah I get your point though. But just because you build your bottom stronger doesn't mean it is totally for drag. I did the same thing to my old 180 and beat the crap out of it up at Nago circuit at a few drift events. yeah I know auto X and drifting are two different things but to have a well built engine means longevity Oh and go to a little milder cam but I think the perfect set up for you would be a T517Z with 256 cams I mean good power band and long lasting. I have built many SR's and that would be perfect for you to auto X in. but it is just my opinion good luck on the Re-build
HaLo
10-13-2004, 06:48 PM
Yeah, I thought about mild cams, such as 256 or 264s... with 9.0:1 forged pistons and a s14/s15 t28 running 10-14 psi of boost.

I got an engine now, in VERY good shape. hopefully, my car will run after my birthday in 2 weeks
silviasichigo
10-13-2004, 07:31 PM
and How old will we be teh hihihi?
HaLo
10-13-2004, 07:40 PM
26 years-old
Id-
10-13-2004, 08:02 PM
damn dude, you're an old bastard :D j/k!!!
I turn 24 in less than a month... bleh
silviasichigo
10-13-2004, 08:12 PM
Oh well I was hoping you would be an older bastard but I guess not hahaha 29 in Dec here it is funny My name is Michael (One who is Like god) born the day after christmas (the 25th being the federally know day of the birth of christ haha) So I guess I am holy.
nrcooled
10-14-2004, 08:28 AM
Good to hear that all is going well HaLo and good luck on the re-build.

I agree with silviaichigo on this one. I would say build the bottom end and get the SR stronger then ever. No sense in doing this again in six months.
HaLo
10-14-2004, 09:42 AM
Yeah, we'll the rebuild plans are for the next few years, like originally planned.
Now that I found a good engine.