Ai

Mindgame is making around 650 on pump gas with a HR with his LT4 intake adapted to the 15deg heads...

FWIW, if your intake doesnt knock the flow #'s down a bit, you've got too much intake. That's what the guru's teach anyhow .

Josh-'04 GTO

Based on that info, I think it's reasonable to conclude that the LT4 intake is not the bottleneck at 560 fwhp.

As for the second part of that, I'm not sure I understand the reasoning behind that. Care to elaborate?

chucks97ss

Hmm, well his heads are a huge step over my 23 degree's 220's. So I mean, yeah, his numbers count, but not really. It does at least prove the intake is capable of more than I'm making... but what does his power peak at?

I've heard both sides of the spectrum... some guys say it's a restriction, others swear it's not. I mean, one things for sure... this thing makes peak power at 7200.... which could be even higher had our dyno cart voltage not been down to 11 volts during runs, which we've proven at least with LS1 motors to have a huge effect on power output. Not sure if it's the 8 coil packs or what, but if we had the voltage up to where it should be (13 or 14), it might have made more power... since I am also running 8 coils. Nobody quote me on that though, it's just a theory. The main circuit on the dyno caught fire, so we were not able to do any further testing. Just saying we might have got it a little more out of it had conditions been more accomodating.

Later
Chuck

kmook

It's been a long day cut me some slack!

Anywho. Chuck what is your setup and info? Logs/Dyno Charts?

FWIW Yes i am sure you can pickup more power going to a sheetmetal, singleplane, etc but i am curious to see a more detailed explination of what you have and what you think you should be making vs what you put down.

chucks97ss

I did cut you slack. Had you not been a moderator, this thread would probably be nothing but a bunch of flaming by now

Setup:
383
13:1 compression
AFR 220's that flow an average between 2 different flow bench's 322 cfm @ .600 lift. Low-mid lift numbers are definitely a little low compared to normal standards... Runners are only 213cc's... So they flow a lot for what they are (in other words, ultra super mega velocity... not that I'm saying that's good... just saying. That's one of the reason's we're doing this testing actually... to compare high velocity good flow, to high flow good velocity),
custom cam... over 260 @ .050 on a 112. Solid roller. Complete competition Jesel's, isky tool room gold stripes, del west, super sevens, Jesel belt drive, crank trigger and cam sync to a Fast firing 8 coil packs.

Since the heads flow roughly 320 cfm, they should be able to support at least 600 fwhp. Not saying the area under the curve would be good, since the low-mid numbers are slightly down, but it still should peak around 600 or so. And like I said, it might just be something screwy with the dyno since it self distructed halfway into the testing and tuning session. Either way though, that's the jest of it. I will write up and post one of the dyno charts in a following post.

Here's a couple video's of us pulling it on the dyno (btw. I was not the person talking behind the camera).

http://www.thebeasst.com/ChucksMotor/Pull5.MOV
http://www.thebeasst.com/ChucksMotor/Pull2.MOV
http://www.thebeasst.com/ChucksLT1.MOV


And here is a picture documentary of the motor.
click me


Also, just as a little bit of cheap advertising that I'll probably get in trouble for..... All of the work in this motor has been done by me. Machining, blueprinting, assembly, tuning, etc. I'm on the verge of starting my own high performance engine building/speed shop. So if anybody's interesting in motor builds, let me know. I'd like to get my name on a few cars etc and hopefully have a full machine/dyno shop operational by the end of next year. I graduate from SAM next month... So until the shop is going, I will continue using the machines at the school here in Houston. PM with any questions.

Later
Chuck

chucks97ss

RPM Torque Horsepower


4600: 443 388
4700: 456 408
4800: 456 416
4900: 463 431
5000: 461 439
5100: 466 452
5200: 465 461
5300: 465 469
5400: 469 482
5500: 464 486
5600: 471 503
5700: 463 502
5800: 466 514
5900: 466 523
6000: 461 527
6100: 460 535
6200: 455 537
6300: 447 537
6400: 443 540
6500: 439 544
6600: 437 550
6700: 431 550
6800: 426 552
6900: 421 553
7000: 416 555
7100: 410 554
7200: 405 556
7300: 399 554
7400: 387 546
7500: 383 547

96Z28SS

Chuck
My motor made 565fwhp @ 6000 with the LT4 intake.

Rob

squinn

I made 560 @ 7100 with my 350 and a big hyd roller cam, but this was with gm LT1 casting that flow 276 @ 600, pored lt1 intake.

With the same heads and 20 more cubes, soild roller I'm now make in the range of 630 fwhp, yet this is with a very modified lt1 intake.

You are running a mono blade tb?

chucks97ss

No... and we concluded a week or 2 ago that it is something not directly related to the motor as for why my numbers are down. There was exhaust in the dyno cell, which could easily account for at least 20 hp, then the electronics on the dyno were malfunctioning causing a voltage drop accross the board, thus possibly simply weak spark to the coils. Either way, I've got the top end apart right now, doing more work to the heads, probably going to get a sheetmetal intake, and a slightly larger cam... So next time we dyno this thing it should print some much better numbers, assuming we figure out what was wrong in the first place...


Later
Chuck

got_hp?

wow........wait a min.......stock lt1 shortblock or built?

btw, your website isnt loading.

JeffK

Chuck,
Just breakdown and give Lingenfelter a call! I am sure they could rig up some wicked looking intake for ya.
I hope someone can answer this for you. Back to the top.

96z

Mindgame has made the most with an LT4 intake. It isnt a question of if you will, but how much you will gain with a sheetmetal or single plane intake. I guess you can pick your poison. The fabricating/planning single plane set up or the $$$ of a sheetmetal intake.

chucks97ss

Haha, actually I was thinking Wilson. Not only do Wilsons look nice, but they perform very well also. Lingenfelter is still a little too sleepy sleepy to do any intakes


Later
Chuck

hsyr

Correct me if I'm wrong but I thought Mindgame had 18deg heads?

chucks97ss

From what I'm told 15 degree's... so yeah, my thoughts are the same as yours on that one

Later
Chuck