Petro's ERL Superdeck 427 w/ Whipple 2.9L
02-14-2018, 07:52 PM
#281
TECH Senior Member
02-16-2018, 11:18 AM
#283
Finally got around to finishing up both cylinder heads
Before breaking hard edges on the combustion chamber. Help prevent detonation causing hot spots and give the coating a softer edge since paint is thinnest at hard edges. Those little pieces of casting flash act like mini blow torches
Chambers smoothed...I still have to break hard edges on the casting holes. If you look at the head at the top you can see the edges smoothed and bolt holes chamfered.
Just enough sanding to remove the casting flash and give the thermal barrier coating a more consistent surface for more even coverage.
Before breaking hard edges on the combustion chamber. Help prevent detonation causing hot spots and give the coating a softer edge since paint is thinnest at hard edges. Those little pieces of casting flash act like mini blow torches
Chambers smoothed...I still have to break hard edges on the casting holes. If you look at the head at the top you can see the edges smoothed and bolt holes chamfered.
Just enough sanding to remove the casting flash and give the thermal barrier coating a more consistent surface for more even coverage.
04-17-2018, 02:48 AM
#286
So...... when are you gonna put this thing together and run it?
04-17-2018, 07:01 AM
#287
That’s the BIG question! I think everybody here is wanting to know.
1) Engine runs fantastic.
2) Engine runs with ZERO noticeable gains in performance
due to all the extra polishing and work being done.
3) Engine eats itself up due to incorrect tolerances or due
to all these miracle coatings peeling off and clogging the
oil pump.
4) Hopefully it runs like a scalded cat and you are
rewarded for your meticulous work!
1) Engine runs fantastic.
2) Engine runs with ZERO noticeable gains in performance
due to all the extra polishing and work being done.
3) Engine eats itself up due to incorrect tolerances or due
to all these miracle coatings peeling off and clogging the
oil pump.
4) Hopefully it runs like a scalded cat and you are
rewarded for your meticulous work!
04-17-2018, 09:41 AM
#288
It’s going to be a bit longer than expected. FedEx dropped the supercharger and cracked, warped, messed up the rotor housing. Hopefully sometime this year haha.
I vote for # 2 and 3 haha
That’s the BIG question! I think everybody here is wanting to know.
1) Engine runs fantastic.
2) Engine runs with ZERO noticeable gains in performance
due to all the extra polishing and work being done.
3) Engine eats itself up due to incorrect tolerances or due
to all these miracle coatings peeling off and clogging the
oil pump.
4) Hopefully it runs like a scalded cat and you are
rewarded for your meticulous work!
1) Engine runs fantastic.
2) Engine runs with ZERO noticeable gains in performance
due to all the extra polishing and work being done.
3) Engine eats itself up due to incorrect tolerances or due
to all these miracle coatings peeling off and clogging the
oil pump.
4) Hopefully it runs like a scalded cat and you are
rewarded for your meticulous work!
04-18-2018, 09:26 PM
#290
I checked them before I lapped them and they sealed water on their own without any springs or grease. I still hand lapped each one with 1200 grit compound and labeled them for their spots. I also CC’d each one again. There was no noticeable difference in volume. (Maybe .1 cc which is less than a drop of water.) The nice thing is that the coating smoothed all the surfaces and transitions. I also like the fact that the shared wall between the intake and exhaust is protected now. Imagine how much heat that shared wall puts into the intake charge. Anywho slowly plugging along.
04-21-2018, 04:33 PM
#295
What did you paint that with?
04-21-2018, 05:46 PM
#296
KBS Coatings Gloss Black Motor Coater and KBS Diamond Clear
Part of the reason for so many Gloss black coats is because I’ve never used a spray gun before so there was some learning with that and so that I could build up enough paint to cover the casting bumps.
Part of the reason for so many Gloss black coats is because I’ve never used a spray gun before so there was some learning with that and so that I could build up enough paint to cover the casting bumps.
04-24-2018, 04:15 PM
#298
Yeah they had a lot of paint on them haha. I cleaned all the sensor hole/pads along with the engine mount holes/pads on the block the other day. Sanded the paint down to bare metal on the pads and chased the threads and ran a bolt down each hole. It might of taken less time to have just masked that stuff off in the first place but oh well it’s all good now.
04-25-2018, 11:13 AM
#299
I'm interested in how well that motor paint holds up. Looking real good.
04-25-2018, 03:00 PM
#300
I think he should tear it all back apart, strip all the coatings and do dyno pulls after each one is applied so we all know which ones are worth it and what real world gains are! lol
Totally kidding. Can't wait to see it running!
Jay
Totally kidding. Can't wait to see it running!
Jay
