Very light forged SRP pistons and compression ratio close to stock 8.2-8.5:1.

 Seppo from Järvenpää, Finland
www.hollowheads.net (just click the hole in the head to proceed)

What kind of pistons are you thinking of using or what compression ration are you shooting for.  I think my compression is higher that I think.  I would actually like to lower my comp and crank up my boost to like 20-25 psi.  Once we get mine tuned in on 10psi and it holds up I garuntee we will TURN IT UP!!!  There is no such thing as carbon in our engines. 

Yes, we are using that 8-point injection. Everything else will change for summer. Different block, new con rods, new pistons, new cam, new heads (but still iron heads), roller rockers, maybe even twin turbos, 90 lbs/hr injectors... So, lots of questions, but we are sure that the limits of Y-block are yet not discovered .

 Seppo from Järvenpää, Finland
www.hollowheads.net (just click the hole in the head to proceed)

I do have a regulator and my pressure is at 43psi key on engine off.  114 lobe separation from Isky cams.  I did get it tuned and ready for some pulls on monday.  I had to replace my plug wires and header gaskets.  Had some copper ones built and installed them but my headers are not machined perfectly straight so they did not seal at all.  Had to build new ones.  Did a lot of tuning on the dyno and then test drove to adjust some small things and now it should be ready.  Are you guys still using that port fuel injection I am interested in if that is working well.  I think I could get better response with that.

Hutz, do you have a boost sensing fuel regulator or what. If not, that might be the problem. When boost raises, you should have more pressure from the regulator and more fuel to the injectors. What is your fuel pressure at idle and what it is with revs and boost? What is the overlap / LSA of your camshaft. We ordered our new cam from Schneider and it will have 116 deg lobe separation angle, so it will have less overlap.

 Seppo from Järvenpää, Finland
www.hollowheads.net (just click the hole in the head to proceed)

Well today was supposed to be the day to find out what this y could do.  I have my bigger injectors in and a new holley fuel pump, that twists the frame when it starts up and we got it tuned on the dyno and running great.  Went to do a few pulls and when under high boost it would sputter and backfire sometimes.  We added timing, took timing away and nothing seemed to help.  I removed the spring from the wastegate and figured we would try naturally aspirated but had the same problem.  I felt like an ignition problem.  I pulled my headers off and pulled my plugs and they were fine so I removed the protective heat boots and 4 of my plug wire ends were shredded from the heat.  I switched to autolite spark plugs because I was told they are alittle colder plug.  Unfortunately they are alittle longer than the champion.  A little too close I guess.  I ordered some Accel ceramic plugs.  Good for 2000 degrees ferinheit.  Maybe tomorrow.  We'll get her done yet!!  What would I do I guess if everything just worked.  We wouldn't learn anything right.  I will let you know.

Sweet! The gauges look great. I wish it was available when I was looking for mine. You should post this on slick 60s, too. www.slick60s.org.


Lawrenceville, GA

Just wanted to let everyone know that I added some pics.

I ordered my injectors today from moran motorsports they are 235 lb/hr injectors, my old ones were 85 lb/hr.  Those should be sufficient I hope.  Thery are designed to atomize the fuel great (so I read) but they do look like great injectors.  I talked to Wichunter (they clean and modify injectors) and he said he has tested a lot of their injectors and said they work great.  I cannot wait to get them and push this y-block. 

I wish I had experience with boost, and injection. But I don't so I'm just an interested observing hoping the best for you engine. Keep us posted!

Heber City, UT (15 mins outside of Park City- basically it's in the mountains)

55 Effie