slowfive0

http://ls1tech.com/forums/forced-induction/1359652-aes-390ci-now-callies-dragonslayer-crankshaft.html Anyone run a 390" combo in a truck/suv? Specifically, a forced inducted application?

One other interesting thread I found. Food for thought. I called these guys up and they claimed that on some maggie combinations up close to 1000 hp, the 390 made 80-90hp more then the 408. The only difference being the 3.8 stroke vs the 4.0 stroke........The shop seems to be highly respected and not a fly by night operation. I can see some benefits of the slightly shorter stroke vs the cylinder bore length but I'm unsure of 80-90hp benefit.........Doesn't seem possible, maybe 20-30 hp. http://ls1tech.com/forums/forced-induction/1359652-aes-390ci-now-callies-dragonslayer-crankshaft.html

Great post Zippy! I agree wholeheartedly! Nice to have the best of the best, but not many have that kind of budget these days. Some questions about your list: 1. What is "with chain damper (otherwise consider a 25% underdrive pulley)" 2. I'm assuming we can space our stock windage tray down with head bolt washers, but you're suggesting a factory one from the LS7 that was already designed for that stroke from the factory? 3. What is a "broached" stock balancer? Is that a pinned balancer or a balancer machined for a traditional key? 4. Did you mean LS7 head gaskets or LS9 head gaskets? I'm assuming LS9.... 5. Many people/shops I've spoken to like the TFS and some say they suck. What gives? I like the idea of running those, but I am open to the LS7 design. I want whatever will work the best. 6. What are the big differences between the traditional fast intake and the truck version. I know about the accessories. Is that it? Does the truck intake have a lower powerband? More lowend/midrange torque or???? Seems like it would be the better choice for our heavy trucks as long as it breathes upstairs.... 7. Header wise, I'm assuming 1 7/8" would be the way to go for applications south of 1000hp.....Or 1 7/8 stepped to 2" if money allows... Maybe I read it wrong but I thought Kevin (Krambo right) went a little better then his best radix times on motor only???? I'm pretty sure I read that, then went 10's on spray. Are we talking about the same Kevin? Love to know more about Joes 427 build I think on the trucks, the major obstacle with the tall deck motor is the headers. Some custom headers aren't that bad if you take into account how much a really good off the shelf header costs in stainless steel or a high quality coating. I would consider it as long as the benefits of the tall deck were worth it. Seems like there are some really good benefits that not many explore. I wish I could find more tall deck combos that people have done......I don't have the budget to "experiment" lol! Good luck with your project! Details?

To elaborate a little on my above comment, when I get on it on the freeway, when it shifts to 3rd and is pulling...as soon as the converter locks up (maybe 2 mph after the shift) the truck feels noticeably more powerful and like its accelerating harder. It actually sets u back a little in the seat. So I'm not 100% convinced that it is coupling up very efficiently..... This is all speculation on my part though. I need to go make a few passes then set my tune so it doesn't lock the converter and retest and see what the difference in mph is. I'm assuming probably 1-2 mph less with converter unlocked?????

Very interested in this. What are good 60 foot times? Most of my times are in the 1.70x range with 2 runs in the 1.69x range. I run a triple disc from circle d. I think the 60's are probably comparable ( maybe) but that is only a piece of the picture. Up top (talking about the converter efficiency) I'm skewing the results because I lock the converter up right after the 3rd gear shift. But there is still that mid range area where two converters may perform entirely different.......thoughts

Nice. Any other details about each combo? Specifically Torque converter stall? Didn't Krambo go mid 11's on motor (408)? I think a tall deck lsx with some really good heads like MAST or WCCH Pro heads would really rock it out!!!! Maybe something with a 4.125 bore and stroke in the range of 4.1 - 4.250. IIRC, that would be around 44X to 45X....

Awesome man!!! Nice time!

I'm very interested in this topic as well. I didn't see any times of the above combos???? What's the fastest someone on this board has gone with an SS with big motor na? I've been doing a lot of research and basically in most cases you don't want to go over 4.0 stroke with standard deck blocks. In some cases, it is ok to go a bit longer stroke if the block has longer sleeves (LS7, C5R, resleeved block from ERL Performance, etc). The only other time it is recommended that you can go with a longer stroke is with a tall deck block. GMPP makes a tall deck version of the LSX, so does RHS and World Products. If you go that route it gets more expensive because of the added height of the engine. It will usually require custom headers among other things. Basically, the longer strokes can cause the piston to come out of the bottom of the block too far causing piston instability. There is ton of side loading with those longer strokes/standard sleeves and you will usually end up with more wear and oil consumption hence everyone's recommendation for 4.0 max stroke. Another problem with the big engines is they need a lot of head to avoid choking them up. Intake/tb can become an issue in some of those cases too. Overall, I think there is a great place for these larger engines when done right. I'm very interested in doing one and look forward to your results/findings. NOTE: I found a ton of good info on the different corvette forums fwiw as those guys have big wallets!

Nice! I never even heard of them before and I was cruising the web last night and stumbled on the video. I was like HOLY CRAP! Look at that low end torque too!!!!! Thanks for the link. Any additional info would be appreciated greatly. I would love to do a setup like this.

Anyone know anything about this combo? This is amazing!!!!

So true. Nothing is cheap when u progress past the cai/catback stage, LOL!!!! I knew that there wasn't a direct kit but not sure what is needed to make one work. What kit does everyone use? Switch to car accessory drive or what needed? Anyone know what a regular tvs2300 has done on a truck like ours?

I hate to say it, but that just seems ridiculous to have to spend 10K to get a blower kit like that. Obviously, we're talking about big 102mm tb, spacer, 8 rib conversion, etc, but come on. I didn't even spend that on my Procharger F2 and gear drive conversion kit (flips the blower around so it takes in air from the bumper area and drives the unit directly off the front of the crank through a gear to gear drive mechanism) for my mustang!!! I guess the fast street shit is always more expensive.....Sigh.

I thought most guys sold the blower attached to the lower intake (with intercooler) as one unit? Is the blower separate from that when sold from Magnacharger (box 1, box 2, etc)????? Thanks. Sounds like the best way is to just buy a full kit then.

Holy Crap!!! What do you think I can sell my head unit for?

Ok, have a Magnacharger M112 blower kit on my truck currently. Would like to "potentially" upgrade to a jackshaft TVS2300 blower. Am I able to purchase the blower/intake unit by itself or do I have to purchase a whole kit? A friend said he heard that I would be able to just buy the blower/intake setup for 2-3k..... Thanks.

There are videos/pics of the flowmasters and the new magnaflow system with resonators at the posted link: http://s744.photobuc...Silverado%20SS/ I'm totally with you on the technology. The Corsa's have that channel built into them that basically cancels out the sound waves at the correct frequency (drone). Corsa had come out with a universal muffler (Corsa DB or something like that) a few years ago---I seen an ad in an old magazine a few months ago. I searched high and low and got a hold of someone at corporate who told me that they had discontinued that line---WTF!!! They did end up getting me in touch with the supplier or warehouse or whatever that had bought up all of their remaining stock! I thought JACK POT....WRONG!!! First, they tell me they have them, then they don't, then they do.......Then I"m told that they only have them in 2 1/2". I'm like "sorry, but that won't work, I need 3". Then they say that the 3" mufflers are basically 2 1/2" mufflers with the ends expanded out to 3" and that the tube inside is only 2 1/2" even on the old 3" models. I'm like WTF! Seriously!? I said "no thanks". I would have bought a pair of Corsas in a hot second if I they were available! I would be willing to pay 200+ a muffler too. Too bad they won't go after that market. To be fair, I know their is some engineering built into each muffler design to work with a given engine and it's frequency ranges (4 cylinder, 8 cylinder, size, etc) so maybe that is why they don't do the universal deal??? Anyhow, I'm sure my system still has some drone, but because it is so muffled it is not readily apparent and consequently doesn't bother me at all. I posted a few videos of WOT, cruising around, idle and rev outside, etc. There are some old videos from when it had flowmasters and new ones from today. Unfortunately, both were done with cell phones and different cell phones at that. Quality is marginal, but you get the idea. Hopefully, this helps some people out as I beat my head against the wall a lot trying to find something comparable to what I wanted to do at the time and something I would like and be able to live with......

I considered that route but I wanted to run the x-pipe as close to the front as I could and I really kind of wanted 2 of the biggest mufflers I could fit in the interest of quiet. I've heard your muffler with a setup that had two resonators (like mine) before it and it was nice. Thanks man

Done! SUCCESS, if you like quiet!!!! With the addition of the resonator in each tailpipe (basically a 10" long case - 4.5" x 6.75") really did the trick! It is quiet with a nice tone. You get on it, you can definitely hear it, but it isn't crazy loud like before. No drone----very happy with it!!! To be honest, if you like sound, a couple of the big magnaflow mufflers and I think most would be very happy. Add these resonators and it quiets it down big time (around 20%) if you're old and like it more tame. I would compare to this system to the sound level of a Corsa Touring with factory cats imho.....Hope this helps, the quality of my recordings suck, but I was using my cell phone---what can I say.... Silverado SS pictures by slowfive0 - Photobucket

Well 1/2 way there. Today, we put on some 18" resonators before the mufflers first (with existing flowmasters). Probably made a 10% reduction if that in noise. Then replaced the flowmasters with the equally large (22"x11"x5") magnaflows (2 of them). Sound is definitely quieter and the drone was pretty much gone. I could live with it and it sounds really nice! Wish I had a sound clip. Plan is to add a "super quiet" style resonator in each tailpipe in the morning. If I can, I'll post up a sound clip before and after. Either way, I think some of the senior citizens on here may find this a viable option for your daily cruisers ;-) Take care Silverado SS pictures by slowfive0 - Photobucket

Damn Snow!!! lol

You have that right. You bring up some valid points. In your experience, what do you think is the tightest stall you could run on a 408/427 with a TVS 2300 spun up like this and still get a decent launch (1.6's/1.7's)????? 2200-2300 possible???? When I had the trailblazer converter with my original setup, it was in that range (maybe a little higher on the flash) and the driveability/fuel economy was pretty good. This circle d is in the 2800 flash range now, but I don't like how it moves the truck around town. Under partial throttle (basic driving around town), it always wanted to stall up around 1800ish under fairly light throttle in city traffic. Sucks for gas mileage!!!!! Maybe part of the problem is the converter manufacturer and not the stall? I've heard of other manufacturers converters having different driving characteristics....... I did price it out and it would appear that I'll be in the 9K range for the turbo setup. Probably 10ish for the blower. The time thing is a very real factor that I hadn't considered or given much thought. Putting it that way, that is yet one more thing that sways me back towards the blower. I think it will win out in the end. I'm going to move ahead with the 408/427 build first. That is a must as the motor is going south a slow death. I appreciate your help and any feedback with regards to a good combo would be greatly appreciated. Sounds like: 408 rebuild (4340 crank, h-beam rods with good bolts, good forged pistons in the 10:1 - 10.25:1 range) TFS 235 cylinder heads Mild cam (have no idea here, maybe something with mid .500-.600 lift and duration in the 235-245 range at .050......?) Want to set it up for the future blower. 1 7/8" stepped to 2" headers or maybe 1 3/4" stepped to 1 7/8" headers? Or just keep the 1 3/4" I have now? Or 1 7/8"???? Hell I don't know, but setup for future blower. Already have dual 3" exhaust I think that's about it. Since I already have a maggie, can I purchase just the head unit/manifold assembly or do I have to buy a complete kit? Would a 418 combo be worth considering if I can find a decent deal on the core? Aluminum and other benefits? Just a few swap issues due to the reluctor differences....Might be worth while. Thoughts?

Kevin, didn't see your replies to the cost the first time around. The cost really changes things up. Any thoughts on what a standard 2300 or maybe 1900 are capable of in the heat? Maybe overdrive the crank pulley and put a nice 10:1 408 underneath it......

Holy shit! Tell me about it! I forgot that little cost thing. Didn't realize those pullies cost that much........Started adding up all of the costs and now I'm back to square one. I will consider it, but the turbo option is back on the table. I can do it cheaper to be frank and will probably go faster to boot. Oh hell! 408 either way and power adder down the road.

Thanks Kevin. You know and bottom line, to run "a number" is nice and all, but it really comes down to enjoying driving it around. Since it is daily driven, it's hard to beat that torque that is there instantly when you call upon it!!!! In this good air, I know the truck runs better then 12.20's and if it drove like this in the summer I think I would be pretty happy. So a 408 and bigger blower should fit the bill quite nicely ;-) Any updates with your truck?

Wow! A lot of great feedback---thanks guys! 1. How much are jackshaft tvs2300 blowers going for (good guy pricing)? 2. Do they require a cog on the back and what does that add to the cost of the kit? 3. Is a 10rib setup needed or will an 8 rib setup suffice? These cost about $900-1100 iirc? 4. 102mm tb is about $700 iirc? 5. With a 408/tvs 2300 setup, will 1 3/4" headers be restrictive or will they work better considering my goals? I was really set on going turbo when I posted this latest thread, but I think I'm back to the 408/TVS setup. I think I will do the 408 first, then add the blower when I can. Thanks guys!!!