1200hp on stock LS

[whitdog54]

gonna run to the junkyard and grab me a 5.3

http://www.hotrod.com/techarticles/hrdp_1109_stock_gm_ls_engine_big_bang_theory/

[c4boom]

ya well the 4.8 and 5.3 actually are better for boost than the larger motors in stock form but that is awesome none the less

[ZFreie]

thats freaking awesome, amazing how good them little moters are

[My84Z]

Without new rods that won't last long

[KB93z28]

Looks like im strapping twins on my 4.8 GMC!!!!!!!! haha

[ILuvPizzaTimes10]

yeah the peak of over 1000 wont last long but if tuned right i really dont see why 700 wont be doable for a long time.

[My84Z]

All of the ls family won't live long over 600ish without atleast rod bolts. Even the 600 rwhp guys are riding a dangerouns road without rodbolts

[ILuvPizzaTimes10]

ohh i never sed without bolts! haha i just forgot to mention them!

[Camaro9969]

Who gives a shit if it doesnt last long it made 1200 hp!!!! When it explodes buy another for 500 bucks.......Its amazing it put out power like that.

[Slowhawk]

Can't beleive people still fall for this. There inflated engine dyno #'s would equate to roughly 850rwhp. At that setup the engine wouldn't even make it down 1 1/4 mile pass.

Alot of people read this and have been switching and finding out it's BS when there motors have been blowing up.

[whitdog54]

^even if the numbers are inflated, and they are using some racing gas. Its pretty impressive it held up to that amount of boost. I dont see some 500 dollar dodge, ford, honda motor doing it.

If this ls1 ever takes a crap, lq9 or lm7 will be going in for sure, you'd have to be stupid not too.

Obviously not something you see everyday or you drive every day and make hundreds of passes. Its still impressive when you can make that kinda power where the cheapest thing in the car is the motor. you could sell that 102 and buy 2 lm7s and run a ls6 intake.

[Camaro9969]

It wouldnt matter if it made 700hp its still awesome to see a pile of shit come out of a junk yard and make great hp. We arent talking fords here boys no need to put it down!

[c4boom]

don has a point there is a huge difference between real life and a engine dyno no shock load no spikes all that stuff ya it made the power but like he said would not hold to shit sort of like a auto vs a stick shift car on rear end parts.

[Camaro9969]

I'll still take it without question

[Slowhawk]

The motors take power, nothing new. I also beleive there numbers are inflated big time.

5.3's or 4.8's taking alot of boost is not very new. Some of you guy's have seen the Avalanches we've built running 16-18lbs of boost from a blower. One has 2 years on it and the other is nearing 5 years. The red truck on my site use to have a 4.8L running 20lbs of boost from a turbo back in 04. Made about 3 track passes before melting down the rings/pistons.

[ZFreie]

Still pretty cool you could put 20lbs to it in the first place and run down the track. I'm not sure I would wanna toss 20lbs on my lt1 lol

[whitdog54]

don has a point there is a huge difference between real life and a engine dyno no shock load no spikes all that stuff ya it made the power but like he said would not hold to shit sort of like a auto vs a stick shift car on rear end parts.


Just hope the first pass is a successful one(if it goes 9s once with a 300dollar block who cares, snag another and build it). I showed a couple people the video, they though it was bad ass. I think you're just looking past the point of the video and being to crucial and negative, but its a forum so w.e. lighten up ppl :lol2-1:

[My84Z]

You guys have no clue do you? Have u seen an engine blow even worst blow at 135+ mph? Oil on tires track etc... 500 dollar block turns into totaled car or death of you! Not to mention what it takes in $ to have a legal 9 second chassis! You guys are wacked

[ILuvPizzaTimes10]

hey they've all gotta learn sometime! Whether its the hard way or not. I'm still impressed with sams 6.0!!

[Slowhawk]

Pretty much what 84 said. Cool untill you see how the motor blows and oils the tires at 130+mph.

Going 9's on a stock shortblock is not a problem with the right setup.

[My84Z]

Shit I am scared at my level and I am about 500rwhp when I can I wanna do the tubular front setup with a diaper. my car only certs to a 10.00 and it'll be probably 2g to cert in the 9's when i finally go that fast.

[ILuvPizzaTimes10]

yeah looking at the rules theres ALLLOOTTTT of shit for NHRA after you break 9.99! good point John. now stop popping everyones 9 second bubble!!!!

[whitdog54]

You guys have no clue do you? Have u seen an engine blow even worst blow at 135+ mph? Oil on tires track etc... 500 dollar block turns into totaled car or death of you! Not to mention what it takes in $ to have a legal 9 second chassis! You guys are wacked


.......you guys are unreal haha. BTW i just went out and bought a lm7, slapped a home made turbo kit on it. Got the boost cranked up to 30psi. LVD here i come!


VV
:chillpill:

[Camaro9969]

You can go 9's at the track 3 times a week and get kicked out..........i'm fine w that. Just ask Curt lol
All i can say is thats very impressive for the set up, who cares what it could or could not run the fact is it did it. Isnt that all that matters? If it was so easy we all would have one laying around our garage right? Give some credit when credit is due. Again we arent talking ford shit are we?

[My84Z]

Credit for what? Slapping a shit ton of boost and making a disaster waiting to happen? I am more impressed with longevity at levels

[Slowhawk]

Obviously you guy's have never done an article for a magazine. They lie alot. I would rather not have any magazine articles done at my shop after seeing them/working with them at Dez's.

[My84Z]

Oh as for the getting kicked outthat only lasts so long aand the safety requirements are for your pwn safety if you don't have them it's your own risk just don't slam into me atthe top of the track.

[SLP IROC-Z]

cant stand to read any diesel magazines, its the same way, bunch of shit thats not true and defys physics, gotta love it.

[Camaro9969]

Credit for what? Slapping a shit ton of boost and making a disaster waiting to happen? I am more impressed with longevity at levels

YES and well look at it this way. You gonna read up on a boring ass article about a guy making 300 hp making it down the track 200 times without breaking OF COURSE NOT its just an article showing what was done. I do get that its a motor dyno but whatever its still cool. Its not like any of us are even going try it anyways. If it were me i'd buy a Nelson Racing motor so i could drive a 2000hp car on the street daily! But thats not 300 bucks now is it?

[Camaro9969]

cant stand to read any diesel magazines, its the same way, bunch of shit thats not true and defys physics, gotta love it.

haha No kidding that stuff is ridiculous!

[My84Z]

YES and well look at it this way. You gonna read up on a boring ass article about a guy making 300 hp making it down the track 200 times without breaking OF COURSE NOT its just an article showing what was done. I do get that its a motor dyno but whatever its still cool. Its not like any of us are even going try it anyways. If it were me i'd buy a Nelson Racing motor so i could drive a 2000hp car on the street daily! But thats not 300 bucks now is it?

I can take the jets out of my notrous system and make a shit ton but that isn't impressive or my other car is at don's installing a turbo maybe i should just run 25lbs and make stupid power for a week. Just dumb to me and unsafe!

[Camaro9969]

I can take the jets out of my notrous system and make a shit ton but that isn't impressive or my other car is at don's installing a turbo maybe i should just run 25lbs and make stupid power for a week. Just dumb to me and unsafe!

Well the point of the whole article is basically asking whats the limit on the motor and that people puss out and run 8psi when they could do more. I guess its up to you what you want to do. Run some e85 and turn up the boost a little to be safe.

[My84Z]

We know what the limits are and that article is a falicy. As covered by Don's former builds and real world numbers.

[whitdog54]

^you're a party pooper, never seen car enthusiasts be so negative about big numbers haha.

Id like to grab me a 5.3, buy some cheap parts. Run like 15psi give or take would be a nice budget build

[Camaro9969]

Buddy of mine has a Sonoma or however u spell that, got a 6.0 out of the junkyard and a shit turbo ran a 10.1 last year not sure what the boost was but he paid 500 for it lol sounds fine by me

[My84Z]

Buddy of mine has a Sonoma or however u spell that, got a 6.0 out of the junkyard and a shit turbo ran a 10.1 last year not sure what the boost was but he paid 500 for it lol sounds fine by me

That is impressithrowing 20lbs at it to say you hit 800 hp once is not.

[whitdog54]

from the article:

"After eclipsing 1,200 hp, we kept going. Raising the boost beyond 27 psi resulted in what we suspect was an ignition failure. The motor was still in perfect shape internally and worked well up to 26 psi, but unfortunately we were out of available dyno time. The motor survived more than 60 runs, the majority of them more than 1,000 hp. We hammered this motor like we stole it, with repeated back-to-back pulls, but the little LS never missed a beat and was ready for more."

"The longevity of the combination is still in question, but having survived about 60 pulls under big boost means it could easily run a full season at the strip, making at least 1,000 hp. It might lose ring seal and drop power, but you can simply replace the rings. If the whole motor grenades in spectacular fashion, replace it with another $500 takeout. We'd caution that eventually you might drive over the crank at the drags and get oil under the tires, but as a detuned 700 or 800 streeter, this little sucker will be amazing."


^maybe you missed that part of the article? its saying both sides, reliability questionable? yes, but 60 pulls at 1000hp makes you wonder how long it would last around a very safe 750? maybe 4 or 5 years with some maintenance.

[My84Z]

Maybe u missed what i meant those numbers are bs. It didn't last that many passes no matter what they say. Even 700-800 is really stretching a stock bottom end 700 is the end of the spectrum. You also missed the point of these $500 dollar motor that will cost you your life or car when it comes apart.

[Camaro9969]

from the article:

"After eclipsing 1,200 hp, we kept going. Raising the boost beyond 27 psi resulted in what we suspect was an ignition failure. The motor was still in perfect shape internally and worked well up to 26 psi, but unfortunately we were out of available dyno time. The motor survived more than 60 runs, the majority of them more than 1,000 hp. We hammered this motor like we stole it, with repeated back-to-back pulls, but the little LS never missed a beat and was ready for more."

"The longevity of the combination is still in question, but having survived about 60 pulls under big boost means it could easily run a full season at the strip, making at least 1,000 hp. It might lose ring seal and drop power, but you can simply replace the rings. If the whole motor grenades in spectacular fashion, replace it with another $500 takeout. We'd caution that eventually you might drive over the crank at the drags and get oil under the tires, but as a detuned 700 or 800 streeter, this little sucker will be amazing."


^maybe you missed that part of the article? its saying both sides, reliability questionable? yes, but 60 pulls at 1000hp makes you wonder how long it would last around a very safe 750? maybe 4 or 5 years with some maintenance.



Hmmmmmmm very interesting lol :) :)

[Slowhawk]

Can't beleive you guy's are still fighting this.

And nelson was brought up.. LOL that guy has a huge list of unhappy customers.

[Camaro9969]

Nobody is fighting i think its actually hilarious. Nelson has unhappy customers? Well i can imagine since he charges 35k for a motor i'm sure theres issues all the time what do you expect with a 2000 hp car. Hes a millionare i'm sure so i cant knock him............

[whitdog54]

Next time I see any 600hp GM iron block with stock internals going down the track, ill make sure to remain atleast 1/2mile away to avoid any shrapnel.


Fighting? Im sitting in class bored....its a forum lol

[Camaro9969]

That will be me haha So hide your women and children!!!!!

[whitdog54]

That will be me haha So hide your women and children!!!!!

:sux2bu:

haha you better reinforce that firewall

[Slowhawk]

Nobody is fighting i think its actually hilarious. Nelson has unhappy customers? Well i can imagine since he charges 35k for a motor i'm sure theres issues all the time what do you expect with a 2000 hp car. Hes a millionare i'm sure so i cant knock him............

Of course he is from all the people he took money from and gave them nothing in return.

[ILuvPizzaTimes10]

guys an engine dyno is a stable controlled run on the the motor. no changes in traction no over hits on boost. none of the other issues that come from pulling a car down the track at that level. one over rev or rev limiter hit and good buy. these rods in these motors are shit. they are POWDERED Metal. Not forged and Not strong. will it hold a few times Maybe. on an engine dyno. sure. down the track NO! too many variables at that level of pressure. best case you melt a psiton down anstead of windowing the block at 100+.

[black heartbeat]

Can't beleive you guy's are still fighting this.

And nelson was brought up.. LOL that guy has a huge list of unhappy customers.

I've heard the same thing about him and that his numbers are extremely exaggerated. Plus every big is the exact same thing again and again.

[My84Z]

:Thinking::max::emot-coupons:

[TrickrTreat]

I think the point that Hotrod was trying to make was "How extremely efficient" these LS based engines are which like don said "Is nothing new".

If you were to get an old virgin small block 350 out of a camaro and strap it in place of that 5.3........ya you get the point.

Theyre a magazine, its more for the "what if" and the "wow factor". they should put in the disclaimer,

(Do not try this in your own cars!!!)

[whitdog54]

it was a 4.8l.....lol! read the rest of the article.