Search found 131 matches
- Sun Apr 21, 2024 9:21 am
- Forum: Engine Tech
- Topic: Cooling tricks with iron headed hot rods?
- Replies: 37
- Views: 1761
Re: Cooling tricks with iron headed hot rods?
The 3rd. gen Camaro with TPI has an egr under plenum that uses cross over for exhaust feed. The egr function does reduce combustion temp, keeps NOX formation low, higher combustion temp equals more power, improvement to cooling system maybe required.
- Sat Feb 17, 2024 3:32 pm
- Forum: Engine Tech
- Topic: Unusual piston tops
- Replies: 11
- Views: 998
Re: Unusual piston tops
All look like that, as in both banks? Never seen coolant carbon up, generally tends to "clean" the piston.
- Sat Feb 17, 2024 3:14 pm
- Forum: General Tech
- Topic: Changing from synthetic to conventional oil
- Replies: 10
- Views: 646
Re: Changing from synthetic to conventional oil
Google your car and pcv replace. If you can do spark plugs, the intake is just nuts and bolt's. The pcv through the right wheel well video might help. I recommend the pull intake manifold method, jump in! It's not a Ferrari.
- Thu Feb 15, 2024 8:24 pm
- Forum: General Tech
- Topic: Changing from synthetic to conventional oil
- Replies: 10
- Views: 646
Re: Changing from synthetic to conventional oil
After that you could try a Hi-milage blend oil, the blend types are usually 30% synthetic at best.
- Thu Feb 15, 2024 8:20 pm
- Forum: General Tech
- Topic: Changing from synthetic to conventional oil
- Replies: 10
- Views: 646
Re: Changing from synthetic to conventional oil
Pcv failure is common source of oil consumption, hard to get at under intake, but the intake gasket is also prone to leaks, so not a waste of time to pull it, replace both and maybe valve cover gasket at same time , especially if you find oil in spark plug cavities. Typical on older higher mileage T...
- Tue Dec 26, 2023 10:04 pm
- Forum: Engine Tech
- Topic: Metal clad valve seal removal
- Replies: 14
- Views: 6283
Re: Metal clad valve seal removal
Have had no problem removing after using Dremel tool to cut a vertical groove on shell to relieve the grip on the guide, not even all the way through shell.
- Mon Dec 04, 2023 8:51 pm
- Forum: Engine Tech
- Topic: more pontiac help
- Replies: 9
- Views: 2784
Re: more pontiac help
By the way, 301 engine is different deal.
- Mon Dec 04, 2023 8:48 pm
- Forum: Engine Tech
- Topic: more pontiac help
- Replies: 9
- Views: 2784
Re: more pontiac help
Just did a 400, A/T resto deal, all Pontiac's '74 and older had 2.75" dia. Register on crank flange, '75 and up used smaller diameter 2.50" hole, 350-400 doesn't matter, just the year. If no balancing was done just get the correct year flexplate for your setup , some flexplates had holes o...
- Sat Nov 25, 2023 4:48 pm
- Forum: Engine Tech
- Topic: Double headgaskets?
- Replies: 10
- Views: 1992
Re: Double headgaskets?
Try calling Enginetech.com, in Texas, they make deck saver steel shim spacers for a variety of engines, they might have something for your application.
- Thu Nov 16, 2023 4:37 pm
- Forum: Engine Tech
- Topic: Speed master fuel pump?
- Replies: 6
- Views: 985
Re: Speed master fuel pump?
If it is a screw top, and it would work with the new engine, why not get a rebuild kit .
- Mon Nov 13, 2023 5:58 pm
- Forum: Engine Tech
- Topic: Weird problem with piston installation
- Replies: 17
- Views: 2380
Re: Weird problem with piston installation
Since it's probably a serp belt, you can't just disconnect p/s pump, if you are sure it is just a return hose, it has minimal pressure, just get some transmission cooler hose and make a return with existing fittings. You can run engine to finish break-in and replace hose later.
- Wed Nov 01, 2023 9:17 pm
- Forum: Engine Tech
- Topic: pontiac build
- Replies: 34
- Views: 6786
Re: pontiac build
Wallace Racing has a site with good i.d. info, for parts we used BOP engineering, ( not BOP parts) and Butler Racing, couple places to start. Tin Indian has some good tech info, but never dealt with them.
- Tue Oct 31, 2023 5:21 pm
- Forum: Engine Tech
- Topic: Need some help identifying this camshaft.
- Replies: 3
- Views: 365
Re: Need some help identifying this camshaft.
I wonder if that's Steve Long Racing, we used a SLR cam in a VW a couple years ago.
- Sun Oct 08, 2023 10:42 pm
- Forum: Engine Tech
- Topic: Damage from running excessively lean?
- Replies: 18
- Views: 1658
Re: Damage from running excessively lean?
Cox is correct, highest combustion/ burn temperature occurs at 14.7:1, about 2700f, this is where NOX formation reaches peak. Too rich, or too lean, burn temp. and NOX drops. High NOX amounts are why lower compression and EGR was introduced in the 1970's, these changes dropped combustion temp to 230...
- Thu Oct 05, 2023 10:17 pm
- Forum: General Tech
- Topic: Running terrible, limited codes
- Replies: 8
- Views: 1538
Re: Running terrible, limited codes
One other item I will mention, hopefully the various shops did the proper code clearing and resetting adaptions for component replacement, one thing you can try is to disconnect one of the battery cable ends, doesn't matter which one, connect them together with a jumper wire, turn key to on, wait 30...