LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Fastest street legal car... and it has an LT1!!!

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Old 02-08-2009, 02:45 PM
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Default Fastest street legal car... and it has an LT1!!!

http://www.baltimoresun.com/news/loc...895,full.story

OK, it doesn't have an LT1 I'm sorry BUT I got your attention!

Yet I AM curious if anyone knows what the most powerful mostly LT1 is. That is, not converted SBC heads and still MPFI. Any intake will be fine though, and it doesn't have to use the Opti still, but it'd be cool Do we have one that breaks the 1,000hp mark? 1,500? I know our sticky has a lot of numbers in it, but none are in the insane range like this. In my time being here, I only slightly remember one car that I think was into the 900-1000hp mark, but that was only due to the bottle :\

I think it's interesting to note, for anyone who didn't read the article, is that his car makes 2400hp and still pulls off 10mpg on pump gas heh Mind you, some states have a HP limit on the road, or used to, not sure if that is still something they'd ticket you for, so obviously it's not a multi-state street legal heh Fact remains it's an impressive feat!
Old 02-08-2009, 05:07 PM
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that is one dirty corvette
Old 02-08-2009, 05:34 PM
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Bro that is deception!

Rod Sabory has been doin this stuff with vettes for a longtime now it does not suprise me at all adsolutely awesome
Old 02-08-2009, 06:24 PM
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AI has a customer making over 1000 at the wheels with their 200cc GM heads and turbo boost, don't know much about it, think it is a 355.
Jeff Green has a badass 96 Impala with a Donovan aluminum block converted to everything LT1 topped with AFR 227 434ci a blower and a small shot of juice to cool it. Trap speeds indicate north of 900rwhp. Sick bastard still uses the opti, 4L60E 8.5" 10 bolt, GM computer, hydraulic roller and about everything else than "wont work" at that level. The AC is still there as are the power options windows seats and such. Been to the PGD twice but broke.
Old 02-08-2009, 07:40 PM
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Wow! Wicked cool car! I've heard that money doesn't buy happiness but, if your into 1000hp + cars, you better have alot of it!

Its really hard to surprise me anymore though with what someone can do with any car given the right budget and know-how. Now, if they make a THUNDERHAWK version of the camaro, I'd crap my pants.
Old 02-08-2009, 08:04 PM
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The designer of that grew up watching Back To The Future
Old 02-08-2009, 08:12 PM
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holy **** i kid you not i know that guy. a really good buddy of mine its his wiffes uncle or something like that. or second uncle. but from what i was told is he has several cars built like that. well not has but he has held the world record for the fastest streetable car for years now. i think he has rebroke his own record hell like 2309482309482390 times lol. but no joke this guy is a down to earth guy.
Old 02-08-2009, 10:44 PM
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Caprice is the only one with any info on insane LT1s huh? I was hoping to see some 1500hp TT monsters
Old 02-08-2009, 10:52 PM
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wicked car for sure
Old 02-08-2009, 11:20 PM
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That's a pretty cool article. I don't have anything to add as to fast lt1's, but I remember reading an article on this twin turbo trans am that was like the fastest car in europe or something. They had it to like 260-270 something on the autobahn. Rediculous
Old 02-08-2009, 11:54 PM
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Originally Posted by S2K
That's a pretty cool article. I don't have anything to add as to fast lt1's, but I remember reading an article on this twin turbo trans am that was like the fastest car in europe or something. They had it to like 260-270 something on the autobahn. Rediculous
Hmm, I'd have to see documentation to believe any car doing over 230mph on an open road (open IE with traffic, as apposed to closed road or a drag strip).

http://www.supercars.net/lists/topspeed.html
All these top speed records were closed course, probably oval track, like the Sledgehammer. That's right, check out #7 TPI POWA! (OK even if it is a radically re-designed TPI, more resembling a long-runner LT1. And just some Sledgehammer backstory if you're bored.)
Old 02-09-2009, 04:35 AM
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My car made 1100rwhp...all Lt1, with more to go......problem is these motors don't last long at these power levels.....kind of a waste of money to build them up..... At the 900rwhp it will last a summer...maybe.
Old 02-09-2009, 11:10 AM
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Originally Posted by otherwhitemeat
My car made 1100rwhp...all Lt1, with more to go......problem is these motors don't last long at these power levels.....kind of a waste of money to build them up..... At the 900rwhp it will last a summer...maybe.
Is it due to them being punched out so much? Why can't you run a more reliable cyl wall thickness and have the system tweaked around the boost (I assume you were boosting?), like the Sledgehammer motor was. 880hp on 'mild' 22psi that was able to go higher (which they did and estimated at around 950hp), while still being a very mild mannered motor with streetability.
Old 02-09-2009, 11:40 AM
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intmd8er or whatever made 900 and dont think he refreshed his motor ever summer...why the hell woul you have to? that makes no sense? its a smallblock with differant cooling...i dont see why it would need special treatment
Old 02-09-2009, 11:43 AM
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That's not the fastest street legal car...A guy in England holds that title...
Old 02-09-2009, 11:50 AM
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Originally Posted by JIBBBY
That's not the fastest street legal car...A guy in England holds that title...
yeah I saw that vid also....
Old 02-09-2009, 02:13 PM
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Originally Posted by Formula350
Hmm, I'd have to see documentation to believe any car doing over 230mph on an open road (open IE with traffic, as apposed to closed road or a drag strip).

http://www.supercars.net/lists/topspeed.html
All these top speed records were closed course, probably oval track, like the Sledgehammer. That's right, check out #7 TPI POWA! (OK even if it is a radically re-designed TPI, more resembling a long-runner LT1. And just some Sledgehammer backstory if you're bored.)
I'll see if I can find it again. Yea, I saw that callaway vette video sometime last fall. Pretty cool stuff.
Old 02-09-2009, 02:18 PM
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Here you go -

http://www.autoblog.com/2008/12/22/e...pontiac-trans/

I may have been a bit off at the potential top speed; I don't know what 435km/h converts too. Been a while since I had read it.

Last edited by S2K; 02-09-2009 at 02:24 PM.
Old 02-09-2009, 10:17 PM
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Originally Posted by S2K
Here you go -

http://www.autoblog.com/2008/12/22/e...pontiac-trans/

I may have been a bit off at the potential top speed; I don't know what 435km/h converts too. Been a while since I had read it.
And thanks, not often someone says something, and actually wasn't pulled **** far from up their **** LOL I mean, not saying it would've been you feeding the bull, you just couldn't been an innocent recipient of it That's pretty sweet to see it was even boxier 3rd gen! I hope one of those links gives more pics and details on that engine!

And it's 270.3mph, so good memory
BTW, great site to bookmark:
http://www.convert-me.com/en/

EDIT: YAY COMMENTS SECTION!
http://www.pollymotorsport.no/index.php?mapping=2

HAHAH That thing... Man they have the suspension really dialed in! And at the end, that loud ricer you can hear, he just walks past it like it's standing still lol (And that's with only 720hp) That dude Nameitftw has tons of vids of that TA, they're all really good heh
http://www.youtube.com/watch?v=IdxG0...eature=channel

Oh sweet, the 407khm run!!
http://www.youtube.com/watch?v=EwMNq...e=channel_page

Last edited by Formula350; 02-09-2009 at 10:42 PM.
Old 02-09-2009, 10:45 PM
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b.s. with a proper tune our motors will hold 900 - 1000 rwhp.
just my .02.

there are obviously limitations but 1000 is doable.


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