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Search found 1194 matches

by Mark O'Neal
Sat Jan 25, 2020 4:35 pm
Forum: Engine Tech
Topic: Compression
Replies: 50
Views: 1725

Re: Compression

af2 wrote:
Tue Jan 21, 2020 9:10 pm
Mark O'Neal wrote:
Tue Jan 21, 2020 8:57 pm
We need the Bore, stroke, deck, gasket, head ccs, and net dome volume.
First post.
Don't get the ".375 down" and don't see the dome volume.
by Mark O'Neal
Tue Jan 21, 2020 8:57 pm
Forum: Engine Tech
Topic: Compression
Replies: 50
Views: 1725

Re: Compression

We need the Bore, stroke, deck, gasket, head ccs, and net dome volume.
by Mark O'Neal
Fri Jan 17, 2020 9:48 pm
Forum: Engine Tech
Topic: single compression ring piston
Replies: 10
Views: 524

Re: single compression ring piston

https://www.ebay.com/itm/SIZE-040-Piston-Set-For-Nissan-Sentra-GA16DE-1-6L/142834316170?epid=27004770592&hash=item214196b38a:g:BeAAAOSwCHBbGvPZ these are the pistons Id like to use. 3-4 weeks ago the price tag was about a buck 'n a quarter. I have called everywhere and can't seem to get my hands on...
by Mark O'Neal
Fri Jan 17, 2020 9:42 pm
Forum: Engine Tech
Topic: Molnar vs K1 vs compstar crank and rods
Replies: 42
Views: 1410

Re: Molnar vs K1 vs compstar crank and rods

Tom Molnar's parts are top notch with the only limitation being the overseas 4340 steel vs the 4330VM which you'll get in the much more expensive rods. There is a big difference in quality between Molnar/K1/Compstar and then Scat/Eagle - they are not finished the same and both Scat and Eagle produc...
by Mark O'Neal
Fri Jan 17, 2020 9:40 pm
Forum: Engine Tech
Topic: Molnar vs K1 vs compstar crank and rods
Replies: 42
Views: 1410

Re: Molnar vs K1 vs compstar crank and rods

Charliesauto wrote:
Fri Jan 17, 2020 6:37 pm
Mark O'Neal wrote:
Thu Jan 16, 2020 7:38 pm
Well, if we're going to be picky on the import stuff.....Mahle is not an American company.

Or do you just mean "Chinese."
The Mahle pistons we use are made in Morristown TN, USA

That's not what I said.
by Mark O'Neal
Thu Jan 16, 2020 7:46 pm
Forum: Engine Tech
Topic: Molnar vs K1 vs compstar crank and rods
Replies: 42
Views: 1410

Re: Molnar vs K1 vs compstar crank and rods

Afaik, some of Molnars stuff is imported. It's not all made in USA. Their entry level stuff specifically is imported, as I recall. All of it is, though it's finished here. K1 is also imported. Here's a tip. If the rods are in the 600.00 to 800.00 range, they're imported. With the exception of Boost...
by Mark O'Neal
Thu Jan 16, 2020 7:38 pm
Forum: Engine Tech
Topic: Molnar vs K1 vs compstar crank and rods
Replies: 42
Views: 1410

Re: Molnar vs K1 vs compstar crank and rods

Well, if we're going to be picky on the import stuff.....Mahle is not an American company.

Or do you just mean "Chinese."
by Mark O'Neal
Thu Jan 16, 2020 7:34 pm
Forum: Engine Tech
Topic: single compression ring piston
Replies: 10
Views: 524

Re: single compression ring piston

All pistons have a single compression ring. The second ring is for oil control.
by Mark O'Neal
Wed Jan 15, 2020 11:29 pm
Forum: Engine Tech
Topic: Molnar vs K1 vs compstar crank and rods
Replies: 42
Views: 1410

Re: Molnar vs K1 vs compstar crank and rods

Mikej26 wrote:
Wed Jan 15, 2020 10:48 pm
Is it safe to say that any of them are a cut above Eagle or Scat? Obviously every manufacturer has a spectrum from entry level items to the top of their lines, but generally speaking are the 3 I mentioned in a different tier that scat or eagle?
Yes.
by Mark O'Neal
Sun Jan 12, 2020 6:26 pm
Forum: Engine Tech
Topic: Plastagage versus bore gauge
Replies: 42
Views: 1846

Re: Plastagage versus bore gauge

Haven't used plastigauge in years, and have zero intention of using it going forward.....A quality mic and bore gauge will tell you way more than plasigauge ever will and more accurately.... It works for a quick check, but is not a good substitute for measuring clearances with the proper tools. Hav...
by Mark O'Neal
Sat Jan 04, 2020 5:43 pm
Forum: Engine Tech
Topic: Short deck 615 big block chevy
Replies: 13
Views: 1925

Re: Short deck 615 big block chevy

Nothing.
by Mark O'Neal
Mon Dec 23, 2019 3:46 pm
Forum: Engine Tech
Topic: 454 Pistons WAY Too Heavy!
Replies: 32
Views: 3599

Re: 454 Pistons WAY Too Heavy!

Knock the knob off the end of the rods to make yourself feel better, glue the motor together, and happy motoring.
by Mark O'Neal
Sun Dec 22, 2019 8:54 pm
Forum: Engine Tech
Topic: oil ring support rails / some quests
Replies: 10
Views: 629

Re: oil ring support rails / some quests

Thanks a lot, Mark, I´m going to contact totalseal. I´m not worried about the loads, as I said, oil support rings are entirely uncommon in Germany. I would have already switched to 2 ring pistons to overcome that problem. Supposedly these are uncommon in USA in turn :) They used to be common...I've...
by Mark O'Neal
Sat Dec 21, 2019 6:58 pm
Forum: Engine Tech
Topic: oil ring support rails / some quests
Replies: 10
Views: 629

Re: oil ring support rails / some quests

@Mark: .030? Crazy, thats really small…..I think they do so to be able to press the dimple through the thin wall....Do you know if there are any other manufacturers who are offering 3.15" rails which might be a bit thicker ? I´m worried that those thin rails will be distorting and hinder the moveme...
by Mark O'Neal
Thu Dec 19, 2019 9:51 pm
Forum: Engine Tech
Topic: oil ring support rails / some quests
Replies: 10
Views: 629

Re: oil ring support rails / some quests

The axial dimension is pretty much standard at .030. I don't use any that small, though.