Bo!
:2RolleyesI have finally started to get my stuff together and start to make way towards having a 450 to 500fwhp (ish) engine. which will happen slowly over the next few months. I will try to remember to post up regularly what i am doing and where im at but dont bank on it.
1) I have aquired and broken down 3 blocks over the past year and I have a lot of good useable parts (probably enough for 3 engines give or take a rotor and a housing)
2) I have bought the pineapple racing porting template. I am going to attempt to port the engine with hand tools and a tesco electric drill and see what numbers i get without the mirror finish to the ports. I have a good amount of carbide burrs and i am getting some hand files. If it takes a long time then so be it. Ill probably practice first on an old plate. I may also get a machine shop to get the rough shapes into the plate if i feel lazy.
3)I am going up from a .81 hotside on my HKS t04r to a 1.30 hotside (from the bentley factory)......I need to figure out if i am going to use the cut back blades from the .81 (which will slow down spool but help higher up) or if i should use the new garrett turbine blades (which are not cut back but may help the larger hotside spool up faster yet have more resistance higher up.:2Rolleyes
4) Also the larger hotside is V band and my down pipe/old turbine of 4 bolt. I intend to get a v band downpipe and cut the end off to replace the end of the current D/P. so if anyone has a knackered (or good) downpipe for sale please let me know............Interestingly the .81 hotsides centre is in the same place as the 1.30 so the downpipe should go straight on. It is also almost exactly the same depth so again the D/P should match straight up (the wastegate may not though) A few things may need butchering but we will see in the dummy set up) A few pics.
5) I have cleaned up the rotors, housings and plates using graffitti remover and in petrol. also the halfords pressure washer came in handy here.
6) Sadly broke my compressor plate on the turbo and i cant get a new one anywhere so this will have to be repaired using the housing as a Jig i will get it welded until maybe a new one turns up. Thats it for today.....
How the hell did you manage to destroy the turbo like that?!
If you\'ve never done porting before, I\'d really advise getting someone who knows what they are doing to do it. I like to do as much as I can on my car, but drew the line at the porting - it can make or break an engine, and can be a very expensive mistake.
Just having the shape on the surface is literally the tip of the iceberg - the shape of the bowl and the inlets are vital too, as is the finish and the exhaust porting.
well he does have a spare plate to practice on, so id have a go at it, no way else you can learn without having a go
Did mine with a Dremel and various bits, port matched to gasket with no increase in runner volume, and gradual ramp to bowl area. Info is out there just do your research. Use the hks wheel and if you get stuck for a dp I\'ve got a spare 3" vband that I used with my hks cast manifold.