Bolt on dsm Vid... 455 whp

[squeak10686]

Regardless it was an impressive feat, he hadn't even got to spray and make his real numbers. Everyone in omaha is impressed with him, hes done good. I think what the conclusion may have been was clutch slippage caused free rev, and that was the ultimate problem. It wasn't running lean, and there was no detonation. I wasn't there, but have seen some of the convos on the boards. Thats the general gist I got.

thanks for the support, whats your name on the omaha boards???

All in all im impressed, just pissed i had a full bottle and didnt get to use it

 

[drmcstroks]

Mad props man... i showed the vid to a friend of mine whose an all out honda (forgive me lord i said the forbidden) guy and he was just like "man that dude had forged internals at least to do 39 psi!!" i just laughed good work

 

[danl]

And I guess you know this for a fact from experience? I just pulled apart a ford 347 stroker that suffered a case of detonation. The damage was a brokek plug, broken upper compression ring, beat up rod bearing, and broken main cap adjoining that particular cylinder. I have also seen other race engines that have broken cranks, rods, pistons, wrist pins, cyliders, etc from detonation. So with that being said, I know I am not wrong. By the way, I also have 13 yrs experience with building race engines of all types. What experience do you have that makes you say I am wrong?

Thats all starting to sound like preignition to me. Breaking cranks and main caps is some serious force working against the piston. Detonation is an explosion after TDC. This explosion chases the piston downwards. Preignition is the burn starting before TDC. Typically it starts at BDC as the pressure is lowest and combustion due to an ignitor is easier to achieve. Then the piston tries to compress the exploding mixture. The result is massive mechanical failure such as rods bending, rods snapping, pistons cracking, cylinders cracking, cranks breaking, and main caps breaking. Detonation usually doesen't lead to failures that keep you from driving home. It will crack the shit out of the second ringland on a 4g63 and can help to lead to headgasket failure. Rod bearing failure do to detonation usually isn't common due to the nice rod/stroke ratio of the 4g63. Mechanically it doesen't bind as much with akward forces. Valves usually don't fracture as well.

I haven't ever forced my white cars motor into serioius detonation. However I inherited a green car that broke all the middle ringlands off all the pistons. The head was fine however as was the headgasket. The rod bearings were fine, and the rods were straight. Detonation can help lead to a rod failure or similliar if your pushing the limits.

Preignition can be summed up as a massive failure that leaves the driver with his hands in the air wondering wtf happened. Its not audible, and it doesen't show up on the knock sensor.

With all that said, I think that motor failed due to too many rpm's. I looks like the stock stretch to yeild bolts which are the weakpoints just let go and didn't want to be a team player. At this point big parts become little parts and the rest is history.

 

[tstkl]

Preignition can be summed up as a massive failure that leaves the driver with his hands in the air wondering wtf happened.

preignition can also be summed up in a pm, since thats off topic.

by something like a gt35r do you mean you havent desided and are looking at those class turbos, or you have some varient that uses the center housing and compressor wheel or something off a gt35r? if the second is the case, where are you getting this turbo, which type flange will it have (mitsu style, t3/4, ford...)

 

[97EclipseGS-T]

Man... I wish I could shake your hand. Takes balls to do that... yeah.. HAHA. your friend is funny too... Its a toy.. a hotwheels are and his honda is a racecar... and the comment about the go-kart... Seriously... takes alot to see your car go like that. Its like the guy on these forums that watched his car catch on fire from a short on his battery with the strut bar. I seriously would of....

1) Shit a brick
2)froze for hours
3)pissed myself
4)cry like a baby

Again man... good stuff. Really takes a true DSMer to blow his engine to show us what it can really handle. Now "I know" like someone said i should quote "not to do"

 

[cfisher]

I will never try and push 39psi on my stock motor. You have to know what will happen but that was very impressive. I'm suprised it lasted as long as it did. Good luck with the new motor.

 

[squeak10686]

Again man... good stuff. Really takes a true DSMer to blow his engine to show us what it can really handle. Now "I know" like someone said i should quote "not to do"

that is the truth but it was all in the tune. having a VERY experienced tuner ( dieselgeek ) on this board who has tuned NUMEROUS car that have put out XXXX numbers. my car was NOTHING compared to the cars he has tuned and he still gave me the time of day.

Installed the Squirt for me and was there ALL THE TIME to make sure the car ran great. and thats why it took 4 months of driving like it was stollen.

We knew going that the car wasnt going to make it home*** trailered*** and we were ready to see what EXACTLY it could handle, and it was all for MY knowledge and also YOURS. I have heard MANY different myth's but now there is truth.
Andrew

 

[tstkl]

that is the truth but it was all in the tune. having a VERY experienced tuner ( dieselgeek ) on this board who has tuned NUMEROUS car that have put out XXXX numbers. my car was NOTHING compared to the cars he has tuned and he still gave me the time of day.

Installed the Squirt for me and was there ALL THE TIME to make sure the car ran great. and thats why it took 4 months of driving like it was stollen.

We knew going that the car wasnt going to make it home*** trailered*** and we were ready to see what EXACTLY it could handle, and it was all for MY knowledge and also YOURS. I have heard MANY different myth's but now there is truth.
Andrew

how funny would it have been if it did make it home? "extra extra read all about it: stock dsm bottom end survives 39psi with 75 shot (not sure if thats what you were going to use or not, but i believe that is right) and puts down over 500 whp. " that would have been crazy.



imagine if that was a 6 bolt jk

 

[dieselgeek]

Hi guys -

Saw this post and just wanted to make this comment:

AWESOME KNOWLEDGE IS IN THIS FORUM. We got more ludicrous suggestions as to what failed in the motor on all the other forums this is posted on, only HERE do we have 4-5 guys doing a serious analysis and giving fair opinions... I am impressed. You guys have a lot of talent here.


Further info after the teardown: The piston tops and combustion chambers showed no signs of detonation, even all four plugs looked brand new... Wade has pictures floating around somewhere.

We had *serious* troubles with the dyno shop's wideband, which was later replaced (owner contacted me with apologies). The first three pulls we used Andrew's onboard sensor so we knew we were safe. If you've watched any of the Parish Turbo Truck videos at the dyno, you'll notice a brown exhaust haze - indications of high 11's AFR. Andrew's car was puttihng out even more haze with 1/3 the displacement - real AFRs were somewhere in the mid or low 11s. Sadly, we had to unhook Andrew's onboard sensor and install the shop's SPARE sensor in his exhaust bung - problems ended up being the controller, not the sensors at the shop. Sometimes this happens.

The motor guru's I trust here said the rod bolt fatigued over many, many hard pulls on this car (Andrew showed no mercy on the streets)... All I know is the combustion chambers show no signs of detonation, also I know from working on other motors that you can see periodic (but not fatal) detonation looking at the rod bearings. His weren't squished. Who knows, maybe it knocked but I have doubts. Timing was very safe, AFRs were REAL RICH.

I learned a lot baout DSMs and there's lots of good advice coming from this forum. Thanks to all who looked at the vid and commented positively or offered good suggestions on the failure!!!!

If anyone ever has megasquirt questions - and I don't mean "buy it from me!" - I mean, if any of you take on a megasquirt project yourselves and want help, you can get a hold of me on this forum, or better, on www.msefi.com (my email firewall blocks PM notofications on this board for some reason).

Thanks again guys,

-scott

 

[squeak10686]

Been getting alot of people asking me whats going in the car now and well here it is...

Eagle rods. Ross pistons 8.5:1

No one's been callin me lately so everynight I been going and getting my motor cleaned and WOW did the 12 or so hours of work REALLY pay off, today I got a huge chunk of it done and finally painted... the front case looks brand new and here are a couple snaps!

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[airmail96]

mmmmm, whats with the torch?

 

[ECLIPSE95]

Stupid Question..but how was the fuse box moved to make all that room by the intake filter?? I've been wondering that for a long time when I've seen it on other setups...

 

[TRBOBLU]

Im PM'd him the same question about the fuse box and never got an answer. Ive talked to a few people who have put it in the glove box but I was also curious of his method.

 

[squeak10686]

oops sorry guys... NOpe the Fuse box is just relocated down much close to the fender...

easy to do with a nice clean look....

This time around the harness will be extended and it will by the old SMIC....

than again i wouldnt recommend it for a daily driven car.

 

[squeak10686]

new setup coming spring guys... be prepared for a 600+ whp DD!!!!

 

[wishihadatalon]

new setup coming spring guys... be prepared for a 600+ whp DD!!!!

so what turbo now? M.s. rules. That and my 16g on my car went 116mph and a 121 at the shootout.

Is Scott still tuning the car?

 

[ECLIPSE95]

So in the vid was there really a 300 dollar fine for blowing your engine and getting oil everywhere...

 

[fourreGsixty3]

Well I hope this can teach some noobs not to be afraid of having a 2G with a 7-bolt. Ive gotta ask this...why would you knowingly pick up a piece of the metal out of hot oil, and then the other guys picks it up, did he not notice you burn yourself on it? Those were great looking numbers...up until the block got a nice ventilation hole. Also with the leak in the intake mani. could that have been caused from a piece coming out and hitting it...it looked like a couple thing came up and hit it, then fell back under the car.

Dustin

 

[DSMunknown]

Uh, the quarter-mile video link and the dyno video link do not currently work.

 

[GSTizzy]

after reading through the whole damn thread and not actually be able to see the video (bad link) I'm gonna cry.... please post the video again

 

[GSTizzy]

does anyone have this video by chance?

 

[420Adriver]

thats awesome a++.

 

[squeak10686]

It was over a year ago and its on my myspace (((( IT was my car)))


www.myspace.com/adquirk

add me as a buddy if you guys wish

 

[perley03]

O that video....that was a great one, if i was the owner of that car, i would have been severly pissed. They saw that misfire a few dyno pulls before, so why didnt they fix it before they pushed the motor even further??? O well, learn the hard way i guess, but i'd at least find a different shop, since the operator said his honda was "a real car" then admitted that a "F-body was a real car".....should have known better

 

[tstkl]

im pretty sure he was joking when he was talking about real, "race cars"