Sleeving a H22A block & turbo - lots of questions!

[Raf99]

Nm all that.

1- Compression ration - http://en.wikipedia.org/wiki/Compression_ratio - but still cannot find docs to say if there is a difference between pistons (compression wise). From what I know so far is that the material of the piston is the same but it may have a different top, or built stronger to withstand the higher compression.

2- From what I've read a T4 turbo will fit a T3 manifold. Still trying to find out if there will be any restrictions with this setup.

3- Injector size. Did a lot of reading here and it seems to be a mixed topic. Most say if your under 10psi boost than 550s will do, but over 10psi and you should be looking into 750s, etc. Its more of an issue with how much compression/HP your making and if your running rich or not. With proper calculations one could determine if their air/fuel mix is incorrect and use proper size injectors accordingly. (I need more reading on this..)

[bmxicansd]

I'm in NS, Canada.

you cant go wrong with darton sleeves. Lmk if you need help purchasing these, since I know the sales manager at darton and they're located down the street from me.

[Sarthos]

1. For pistons, look at a chart like this one.

http://www.pawinc.com/charts/Superch...mpression.html

The squares in blue require race gas, because of their high compression. With only 2 pounds of boost on an 11.0:1 motor, you need race gas, with 11.5:1, the chart doesn't even go that high, but you basically need race gas for a single pound. I'd probably recommend Crower or Wiseco pistons, as low of compression as you can get.

For the cams, stage 2 is generally more agressive than stage 1, and stage 3 is more agressive than that. Upgrading the cam usually requires some valvetrain upgrades (valve springs, maybe retainers or valves) I'd recommend a Bisimoto stage 1.2 cam if you want your car to be streetable, 2.4 if you want quite a bit of power. I've heard good things about skunk2, get a skunk2 turbo cam if you get one of theirs, and assuming you're running enough boost to where a turbo cam is the best cam.

To make the block shine, use an engine degreaser and a wire brush to get it clean. If you want it to really shine, you'll need some kind of an electric sander, and a dremmel to get into all the little cracks. Just start with about 400 grit, and sand it all the way up to 2000 grit, and the engine will shine like a mirror.

As someone else said, replace all the seals, have the shop check it over really well.

[Raf99]

Thanks bmxicansd, and what do you have for prices on sleeves? My local guy is quoting me ......Darton sleeves are $899 plus tax.

Thanks Sarthos. I'll look through this chart when I have more time. I can't be reading it properly now b/c its saying that with a 9:1 compression ratio on pump gas, 4PSI, your effectivly running 11:4:1.
I guess this explains the high compression pistons needed. But according to the chart anything above 4PSI and race gas is needed, or maybe some kind of detonation prevention.

I'm a beginner so I'll grasp this eventually

[bmxicansd]

Thanks bmxicansd, and what do you have for prices on sleeves? My local guy is quoting me ......Darton sleeves are $899 plus tax.

I'm a beginner so I'll grasp this eventually

lmk when your serious about buying them. i think i can get them for a little bit cheaper... pm me k.

[Sarthos]

Is there any good thread on this site about E-85? I know it's a higher octane than other pump gas, and you can use it to run decently high compression. I just can't remember what it does to your injectors and stuff (I think 450 cc injectors are equivalent to 300 cc of ethanol or something). Also, remember that when you have your head removed, you should replace the head gasket with a thicker one, slightly lowering your compression. That chart might not be the best one, just do a web search for Compression Boost chart or Compression Boost calculator, some of them account for altitude, that chart might not.

[Raf99]

Is there any good thread on this site about E-85? I know it's a higher octane than other pump gas, and you can use it to run decently high compression. I just can't remember what it does to your injectors and stuff (I think 450 cc injectors are equivalent to 300 cc of ethanol or something). Also, remember that when you have your head removed, you should replace the head gasket with a thicker one, slightly lowering your compression. That chart might not be the best one, just do a web search for Compression Boost chart or Compression Boost calculator, some of them account for altitude, that chart might not.

http://www.cb7tuner.com/vbb/showthre...highlight=E-85

[HybridKyle]

I did a quick scan and saw something about buying pistons to fit the bore or vise versa....what a good machine shop should want to do is you buy the pistons for the size bore you want, I wouldn't personally go over bore much IMO, take them to the shop that is sleeving and building it. They should know what your setup is going to be, i.e. Turbo, with this in mind they should fit each piston to each cylinder with a specific piston to wall clearance to best suit a turbo setup.

Now again, if someone covered this already...appologies!

GL with the build

[Raf99]

I did a quick scan and saw something about buying pistons to fit the bore or vise versa....what a good machine shop should want to do is you buy the pistons for the size bore you want, I wouldn't personally go over bore much IMO, take them to the shop that is sleeving and building it. They should know what your setup is going to be, i.e. Turbo, with this in mind they should fit each piston to each cylinder with a specific piston to wall clearance to best suit a turbo setup.

Now again, if someone covered this already...appologies!

GL with the build

Thanks, I agree. So I'll be sticking with the default bore size (87mm) and getting 9:1 pistons for the setup. Another stupid Q, are sandwich plates always required for turbo setups (turbo line feed). I believe I seen other setups where T-s were used, but I'm still a little confused and still reading too.

[mayberry]

I'm running 10:1 Compression on my 2.4 block with some COMP 280 cams. Granted it's an Evo but the theory still applies to any motor. More compression/better cams are going to give you better spool and torque. No matter what. Also, stick to a standard t3 flange for the turbo for now. I'd stay with a 30r or smaller for what you're doing. Even a precision SC61 will get you where you want to be.

[mayberry]

Is there any good thread on this site about E-85? I know it's a higher octane than other pump gas, and you can use it to run decently high compression. I just can't remember what it does to your injectors and stuff (I think 450 cc injectors are equivalent to 300 cc of ethanol or something). Also, remember that when you have your head removed, you should replace the head gasket with a thicker one, slightly lowering your compression. That chart might not be the best one, just do a web search for Compression Boost chart or Compression Boost calculator, some of them account for altitude, that chart might not.

E85 is the shit! I wish it was more readily available in my area. I'm sure homemadeturbo has tons of threads covering the use of E85. Also check honda-tech.com.

[Raf99]

Would anyone recommend this style turbo manifold over a log manifold?
I currently have a log manifold, and seen this today. The BOV port seems to be on the same side so the only downfall of this one is that it takes more room which may get in the way of the rad.

http://www.lowmotion.org/viewtopic.php?f=93&t=156114