Well , in my new turbo setup I am sure I will be very limited in boost because of detonation . So I was wondering .....

If you take a cast iron head and ceramic coat the chambers and ports . Will it still have the potential reduce the possibility detonation , the same as am aluminum head prepped in the same way ?


Everything IS getting coated in the next block ( pistons, heads, intake base , and any other relivant surrfaces . Also is all this a good/bad idea ? I just want the greatest potential I can get out of'r

Thanx all , opinions wanted .

 

19 views and no reply's ? awwwww come on pleeeeeassse

 

Coating the heads will help keep the head cooler but combustion chamber temps wont be effected that much. The main factors are still going to be compression ratio, boost, and intake temperature. Your probably better off going with a highly effiecient air to water intercooler. And an alcohol or water injection system.

 

Polish the ports and chambers instead.
Don't run a tstat.
Run a cold race type plug,
and yes explore alcohol injection.

 

I plan on ....later getting an intercooler on it . I was just figureing this as a sollution .... because my current C/R is 9.74:1 . Which I know is a bad idea to start with . BUT regardless. I CAN in a driveway change the heads . SO I was gongi to get them prepped in that fashion ....just to do what I can short of yanking the block and doing what I just did last summer ( before I even knew I was getting a turbo ) .

At the moment I am sure I wont be getting anywhere near 6 psi ....or boom ! But if I can do the little things that can be done in a driveway like heads ..... add intercooler . I can try runnnig it like this untill I am better suited to get my real short block with better stuff suited for 20 psi of boost .... or around there .

My only goals are
- 11's on streets
10's on slicks
emmissions compliant ( all smogg stuff )
and it's gotta be able to handle a 90+ degree trafic jam ..without overheating .


Thanx for the input thus far ... but am still curious IF I coat the heads ( iron ) will it still have thr same ability to combat detonation ...as an aluminm head treated the same way . Because I don't mind getting a set of 113's and donigthem up either vs the 083's .

 

polished aluminum stays cooler.
coated chambers would carbon up more quickly.
Carbon is a good insulator, but it won't prevent detonation.

 

Thanx for the heads up on that ( no pun intended )


SO I am gathering the best setup would be a polished aluminum head ....with NO coatings . Still figure I should get the pistons done ? Or is that a bad idea too .

 

That is my opinion.
All coatings aren't the same and I cannot tell you for sure which ones work. I can say that polishing always works.

 

One thing that will help quite a bit if you pull the block is spraying the undersides of the pistons with oil. Cools them down a lot and helps prevent detonation.

 

I am wondering how you are going to fit a decent sized T4 or two T3's in there with all of the smog stuff. The T4 would be a lot easier to do.
Yeah, you can meet your goals. It will probably take some thinking to make the exhaust manifolds.

 

I am sending back my headers to BBS and they are switching wastegate locations ( SO I can keep the smogg pump) and I just need a way to find out where to tell them to weld the AIR bungs ( due to the fact I have been disabled for 2 years now ....gets hard to look under the hood . BBS has been nice enough to try and fab up a set for me ....as the got a car there to work from . They just plain rock ! My alternative was to get ANYone to just hack and weld .

Phlaxus ....I read about them oil squirters aswell . In a book called CHevy highperformance . I seen alot of block prep I am interested in that book.

As far as the T-4 ( T-62) .... it looks nice in there engine bay pics ....also on the engne stand pics . My only regret is that I would of had to convert to a V belt setup to keep the A/C ..... by by A/C

I appreciate all this guys

 

This is not a good idea!!! Without adequate block pressure an engine will develop hot spots (near the exhaust valve usually) that can make the engine MUCH more prone to detonation problems.

Some good info here from some people that know how to cool engines that have to perform for longer than a 1/4 mile.

Stewart components

The more power an engine makes the more important PROPER cooling becomes. Good luck with your build!

 

Thanx for the link . I have also been thinking of stuff like oil coolers .... but got to research the oil I want ... see where it likes to be at ....and try to maintain that temp.