Cascade Crew

izcain · Posted: Thu Oct 12, 2006 10:40 pm Post subject: My quest for 100 more hp

Well this winter I am beginning the new quest for another 100 hp goal.

So far I have experimented with different cam grinds and have found one that is expected to net me a stout 50hp increase with 1.7 ratio roller rockers...... Crane Powermax 114051...... Has 302 intake 308 exaust with .488 intake and .495 exaust (minus the rocker swap) and still has a 112 LSA so it will be good for the nitrous I have on the car. With the roller rockers I was around .544 and .561 or so lift. Has anyone used 1.7 ratio's before? It would appear that I can remove my 3/8's screw in studs and install the 7/16's studs and then just install the rockers. Of course I plan on installing the correct valve springs and everything as well.

Next I am taking my Torker II Ported intake off and going to a Super Victor Ported and polished intake.

After that I am taking the 750 DP carb and either swapping on 850 Mighty demon or tearing down the 750 and throwing on a HP main body and billet blocks and baseplate.

Just wondering how much you guys think the super victor swap and carb changing will net me......

Also does anyone have any good ideas for a better cam. Unfortunatly I made the mistake and only provided myself for enough rod clearance for about .501 lift so I have to keep it @ or under that mark.

QwkTrip · Posted: Fri Oct 13, 2006 3:14 pm Post subject:

Have you considered supercharging or turbo to keep it streetable? Judging from your time slip, you're probably running 420 RWHP right now. By the time you hit 500 RWHP that engine is going to be pretty strung out. I don't know if that's something you're worried about or not.

Dewey316 · Posted: Fri Oct 13, 2006 3:19 pm Post subject:

Yeah, you are getting to a level that few of us can play in. The super victor is a pretty extreme intake, it is very much tuned for some serious revs.

As for a cam, it might be worth really talking with some cam designers, and maybe going with a custom grind. Go to www.chevelles.com, and get ahold of UDHarold, he worked for comp, and lunati, and owned ultradyne cams. He should be able to help you with a cam to reach your goals.

izcain · Posted: Fri Oct 13, 2006 5:18 pm Post subject:

Yea the super victor looks like a great intake I just got it back after the port and polish work and it looks pretty nice! According to the timeslip dyno calc it is claiming that for the weight of my car and the timeslip I had it said it should have been making 540 something to the wheels to achieve that MPH. which I can believe since the engine building figured that I was at around 500 or so off the gas.

I would love to run a turbo but I am lookin toward something that I can put together this winter and it seems like the "right turbo kit" would cost some serious coin.......... Not to mention the motor is an 11:1 motor anyways. I thought about taking it out and tearing it down and putting some low compression pistons in and going to like a procharger or something but im still in the air as to what I should do....... Does anyone have any advice on lists needed for turbo parts? I guess I will have to do some searchs and see if anyone has the list as well as diagrams on a layout. I just want something fast but simple and I dont mind tearing things down after a season to fix some things (keeps me out from underfoot with the fiance lol). Im already on my 4th engine since I have a tendency to build them, run em, and then change for something more.

Nathan J · Posted: Fri Oct 13, 2006 5:54 pm Post subject:

how did you end up only getting enough clearance for a .501 lift cam?? my builder just did the normal notch out for a 383 in my factory block, and i have plenty of room and im running H beam rods? i have a .533int .555exh in mine now. but would you have enough room if you switched to a small base cam? also going to 1.7 rockers your going to have to pull the heads and have them clearance out the valve guides other wise it could be to tight and wipe the cam from the new angle, also it could wobble out the holes and make some bad oil leaks from the valve seals.
Nathan

QwkTrip · Posted: Fri Oct 13, 2006 5:57 pm Post subject:

Those numbers seem super optimistic. I use to drive a supercharged '94 Vette that made 420 RWHP on a chassis dyno and it turned 122 mph in the quarter.

Just to put things in perspective, I had a stock cam and stock computer with an otherwise nicely built LT1 that nailed 26 mpg on the freeway. I used a Vortec S-trim with 9 psi pulley. However, ditching the Vortec pancake style intake for some bigger nylon tubing cut up with a hack saw (fancy, huh?) produced 12 psi. At one time I was thinking about a custom tune by Ed Wright, but I never did it. But the point is that Ed Wright had a car identical to mine that after his tuning left the shop with 540 RWHP. He figured a mild cam swap would get me 600+ RWHP. This is the kind of power a "mild" supercharger could get you with a baby smooth idle.

If you turbocharge then you'll be custom fabbing something. There is a supercharger/turbocharger technical forum at www.thirdgen.org where some people have a lot of experience. You might probe around there. I would think the biggest challenge is a header system that can support the weight of the turbocharger without cracking or overheating.

Now I better stop here because I think you know a heck of a lot more than you're letting on. I'll be asking you for ideas when I get my car back to Illinois. Wink

izcain · Posted: Fri Oct 13, 2006 7:35 pm Post subject:

hahaha thanks for Qwktrip...... I just like getting others opinions as well...... sometimes others point out something that I might overlook.... Well the reason why I only have clearance for that much cam is because I have forged I-beam rods instead of the H-beam and I am running ARP Wavelock rod bolts but not the capscrew kind....... I thought about maybe taking the bottom end back apart and changing out the rods for H-beam with capscrew style then I could transfer to something with quite a bit more heft..... I just dont know if I wanna keep trying to go N/A although it is fun since it presents a challenge more then to just slap on boost and run like hell. But dont get me wrong im all for the boost and might go and grab some this winter anyways Cool

The procharger kit is lookin better and better If I was going to go with some sort of ubove atmospheric power.

Hey qwktrip, I know that those are optimistic numbers.... I figure it is more like 500 N/A but that is more like flywheel power....... Dyno sims are cool and give you a pretty good idea but are not acurate to some real world power.

Here are some pics of the manifold fresh from porting and polishing.

QwkTrip · Posted: Fri Oct 13, 2006 8:28 pm Post subject:

If you're really bored this winter then you could finish my car for me. I pay for all the parts and you do the work. hehe. Wink

izcain · Posted: Fri Oct 13, 2006 8:54 pm Post subject:

haha well what engine are you building?

QwkTrip · Posted: Fri Oct 13, 2006 9:29 pm Post subject:

I have a 468 BB Chevy. About 9:1 compression with a B&M mini roots blower. Probably an 8 psi pulley, but I don't know for sure. Iron heads with a little bit of work on the exhaust ports. Crower supercharger cam with 1.7 roller rockers. And all the other doodads to make it solid and reliable. Tranny is a TH400 with 2800 TCI converter. Strange 12-bolt rear with 3.73 gears. Kenny Brown competition suspension and subframe connectors. I also have a coilover setup for the front with long travel big block springs but I haven't installed it yet.

Car is pretty much intended to be 90% street 10% strip, hence the 17-inch wheels. It was a V6 5-speed car that I've had for 15 years. In fact, it was the first car I ever bought! Smile

The plan started out as a transplant of the modified ZZ4 from my '68 El Camino, and Tremec TKO 5-speed. But some time in between then and now I ended up owning the supercharged Vette. When I sold the Vette it kind of bugged me that there was a chance I could be smoked by my own car. So out came the ZZ4 and in went the big block with a TH400. Plus, I just wanted to experience a big block once in my life.

Well, that was over 5 years ago. I took a job with Caterpillar and moved to Illinois. Thought I was going to ship it back here but I ended up getting married instead. That ended it right there. Just not enough of a priority to spend thousands of dollars to get it back here. The car has sat in my parents' garage in Richland, WA ever since.

The engine is already built and has run naturally aspirated with a different cam. The car just needs some finishing touches like fuel lines, some bolt on engine accessories, and the supercharger need to be rebuilt. It also needs exhaust. I had custom Tri-Y headers made by Lemons Headers that dump by the tranny pan. I was planning to adapt the 3-inch dual Hooker long tube header Y-pipe to my headers and run a 4-inch single out the back. But best laid plans are just that... plans. Very Happy

The picture in my sig is from Christmas a couple years ago. The big block is in but the supercharger doesn't quite fit. A 2-inch motor mount drop might actually get everything under the hood. It wouldn't be a total sleeper like a wagon with skinny steel wheels... but it would take a lot of people by surprise. Cool

izcain · Posted: Fri Oct 13, 2006 10:25 pm Post subject:

That sounds cool but sad at the same time!...... My car is also the first car I ever bought had it since I was 14 lol....... It has been thru so many chagnes I can hardly remember what it was like when it was stock. I've had 4 engines, 4 transmissions, 2 diffs, and so many hours of fab time I can't even begin to fathom how much....... I have often pondered the thought of changing to a blower or a big block both of those are dream ideas of mine, looks like you have the best of both worlds! I have spent so much on the car yet I have a hard time getting large sums of money ya know what I mean?......... I too am getting married but she understand the hobby and enjoying going to watch me race! I just tell her not to look at how much money goes to it lol.......Too bad that car wasn't closer to where I am I would help ya with it in a heartbeat... That thing looks bad man!

izcain · Posted: Mon Oct 30, 2006 9:39 pm Post subject:

Well after doing some research and all I figured I would provide an update...... I have been looking into the turbo scene and this is what I have came across what do you guy think? http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&ih=005&sspagename=STRK%3AMEWA%3AIT&viewitem=&item=150050547674&rd=1,1

Has anyone on there heard of this company oor used any of their products?

Dewey316 · Posted: Mon Oct 30, 2006 10:17 pm Post subject:

I have heard their welds and build quality is complete crap. Search for SSautoChrome on TGO, and especialy search for it on the turbomustang board. They have a pretty bad rep.

But, no personal experiance with them.

izcain · Posted: Mon Oct 30, 2006 10:29 pm Post subject:

Yea thats what im starting to hear as well. There is a guy on the boards that was offering a twin turbo kit but it is a homeade kit. It would work good but I think i am going to save up for a procharger! The turbo kit would be cool but the more I look the more of a PITA it would be over a procharger system.

aaron_sK · Posted: Tue Oct 31, 2006 5:01 pm Post subject:

And when you've heard enough from the TGO guys, Google 'ssautochrome' and you can get an earful of the ranting fron the Honda guys.

izcain · Posted: Tue Oct 31, 2006 5:41 pm Post subject:

LOL yea I did get an earful with only looking for about 15 minutes. I must have read hundreds of ticked off customers. It is a bummer that BBS is going out of the turbo scene for our car since SSauto screwed them over.
I have been giving it a lot of thought and kicking around in my garage looking at my other engine

I have laying in the garage and I think I am just going to take the stroker that is in it and bump another 1 point or 1.5 points of compression a and go for better heads and cam and see where that takes me. I think I will slowly start building my procharger motor in the garage in the meantime though! Cool

Has anyone had any experience with Pro 1 230cc heads? I was looking at them and I think that with some port work and 2.08X1.60 valves should really wake up a larger displacement engine.

"note to self: Think about the cam phasing before you put forged I-Beam rods in the next engine" DOH LOL......

QwkTrip · Posted: Wed Nov 01, 2006 4:41 pm Post subject:

You might try thirdgen.org racing forums or chevelles.com I'll bet some of those Chevelle/El Camino types have tried them.

izcain · Posted: Thu Nov 02, 2006 5:45 pm Post subject:

well after doing some research it would appear that the 230cc heads are best for 427+ cubes......... Although I might try them anyways on a new motor and just build it to be spun to the moon lol.........

Twilightoptics · Posted: Thu Nov 02, 2006 6:00 pm Post subject:

Pro as in Protopline?

Dewey316 · Posted: Thu Nov 02, 2006 6:03 pm Post subject:

Pro1, I am going to assume he is talkign about Dart's Pro1 Heads.