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Old 09-27-2009, 11:59 PM   #1
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bad news 305 vs ls1

so i took my car out to race some guy in an ls1 z28 camaro and it was a little chilly. about 58 degrees f. so we line up and go... he just leaves me and im just spinning and tail going to the side a little... i start catching up once my car goes to second (had the car on d) but when it got to third i was at least 4 cars behind and climbing at about 90 mph he lets off. then we do a u-turn and this time i went easy on the gas in the launch and the tranny kind of shifted to second right away so again i have to catch up and i do a little but he lets off before i can even get anywhere near. i get out shake the guys hand and all. then i check my tires. my right rear passenger tire is a little low. i go to put air and its at 15 psi while the rest are at 30 so i also put it at 30. so that was most of my traction issue. then some guy in a monte inimidator wants to race so we do. im thinking my traction will be good so we race and i smash the gas pedal all the way down and the revs go up but the car isnt going anywhere and monte is already halfway gone. so yeah i lost then we did it again and this time i go easy on the gas and i get at least 4 cars away and still pulling all the time. i dont like to shift up because i always go to d right after 1 i think my shifter is bad or something so i just put it in d all the time. i know that is the better way most of the time but with my mods done the car feels like it pulls up to 5700 rpm and in d it shifts automatically at 5k
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Old 09-28-2009, 03:46 AM   #2
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Re: bad news 305 vs ls1

get some drag radials so u could get traction. was the ls1 u raced stock?
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Last edited by PHAT89TA; 09-28-2009 at 03:54 AM.
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Old 09-28-2009, 07:44 PM   #3
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Re: bad news 305 vs ls1

yeah it was stock and automatic. im putting my car away though cause its getting cold and it should be ready by spring. ill get some suspension work. i also lost a lot of compression with the 350 heads so maybe ill get a supercharger or turbo whichever costs less until i blow the 305 or get enough for a better motor
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Old 09-28-2009, 10:26 PM   #4
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Re: bad news 305 vs ls1

Nice runs. If you run the ls1 guy again just beware if he added any mods. I saw a full bolt on ls1 go 11.9. Yeah id say the respond very well to mods.
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Old 09-29-2009, 05:45 PM   #5
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Re: bad news 305 vs ls1

yeah i wish i could afford an ls motor they are awesome but i would get a 6.0 truck motor i hear they are pretty strong that way i can supercharge it or something. too many imports are out right now running 12s making fools out of most guys in mustangs and camaros. at least the younger crowds because all the faster camaros and mustangs are usually guys who only let the beasts loose at the track or very rarely. at least out where i live. i dont know about anywhere else.
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Old 09-29-2009, 06:29 PM   #6
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Re: bad news 305 vs ls1

oh hey guys i found the video my buddy recorded it put it on youtube.. at the begining if you pay attention you can hear my tires squealing with no traction and at the end you can see im catching up and the a =hole hits the breaks to get the win im the guy with the HIDs yep on an 86 i got 8000k http://www.youtube.com/watch?v=e3JSQ...eature=channel heres the second one with me against a monte intimidator ss i got the air problem on my tire fixed and theres the result+ a little flame out my exhaust dont know if thats normal with my mods and i dont have a catalyst you can almost hear a wtf in the back haha. http://www.youtube.com/watch?v=swLqi...eature=channel heres my buddys lt1 taking vengance on the ls1 he also has HID lights like me yep on an lt1 with the little rectangle lights we made it possible haha http://www.youtube.com/watch?v=E0ZLC...eature=channel
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Old 09-29-2009, 07:42 PM   #7
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Re: bad news 305 vs ls1

I had a stock heads cam Ls1 in a 98 t/a that would run 12.40 withh exhaust gears and suspension. LS1's are sneaky, traction is the key on the street, few parts and some tires and you'll be giving them a good run for their money. Good luck with your build!
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Old 09-29-2009, 10:30 PM   #8
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Re: bad news 305 vs ls1

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Originally Posted by ihatemustangs View Post
I had a stock heads cam Ls1 in a 98 t/a that would run 12.40 withh exhaust gears and suspension. LS1's are sneaky, traction is the key on the street, few parts and some tires and you'll be giving them a good run for their money. Good luck with your build!
Did you have 4.11's? I ran 12.8 at 109 with just exhaust and lid with the stock 3.42's. With 4.11s and tire I bet I could match your times. I want to get them but it would probably be catching rubber in 4th lol. I also enjoy saying my car can go 165 mph ahahahaha
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Old 09-30-2009, 08:13 AM   #9
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Re: bad news 305 vs ls1

I had 4.11's and M&H 275 55 16 dr's.
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Old 09-30-2009, 01:43 PM   #10
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Re: bad news 305 vs ls1

i ran a 13.32 @108mph with only an slp lid and a k&n filter. now my best time is 12.71@115 with my clutch slipping in third and 4th gear
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Old 09-30-2009, 04:01 PM   #11
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Re: bad news 305 vs ls1

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i ran a 13.32 @108mph with only an slp lid and a k&n filter. now my best time is 12.71@115 with my clutch slipping in third and 4th gear
What mods do you have to trap 115?
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Old 10-03-2009, 04:28 PM   #12
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Re: bad news 305 vs ls1

toquer 2 cam, longtube headers, catted y-pipe with a 3 inch cutout. moser 9 inch 3.70 gears, 1000hp steel ds with 1450 yoke. stock heads. stock ls6 intake. ls7 clutch/ls2 flywheel (robs 10rwhp) dynoed 409rwhp 377rwtq on a mustang dyno with my 9inch. my car is definatly a high 11's car at about 118-119mph range whenever i get a better clutch setup.
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Old 10-04-2009, 09:38 PM   #13
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Re: bad news 305 vs ls1

Have you ever had that 305 to the track? A 305 with just heads doesn't seem like it would even have a chance against an LS1. My cammed 305 with headers, exhaust, intake porting, and stripped down engine bay with no AC did a 14.3. An LS1 is a 13.5 car all day long and they are VERY stout up top. Sorry if I'm being ignorant...I don't know your car, but it doesn't seem like you'd have a chance with that set up.
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Old 10-04-2009, 11:07 PM   #14
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Re: bad news 305 vs ls1

ls1 z28 driver was 16 and yes i have taken it to the track i have my times in another post you can check it out but i messed up bad from 2--3rd i pushed the leve up to neutral was over reving a little and realised i wasnt in third so i put it back down to 3rd or d
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Old 10-05-2009, 12:27 AM   #15
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Re: bad news 305 vs ls1

A 16 year old with an ls1?

That is not a good combo.
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Old 10-05-2009, 09:07 AM   #16
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Re: bad news 305 vs ls1

What shape is your suspension in? I used to have lots of trouble getting traction after my car got tuned. I replaced all four shocks and struts and that made a huge difference in the traction department.
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Old 10-05-2009, 07:33 PM   #17
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Re: bad news 305 vs ls1

it has good traction it was just cold and my tires were uneven in psi one was at 35 and the other at15 i think it caused me to go to the side a little
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Old 10-18-2009, 11:12 AM   #18
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Re: bad news 305 vs ls1

it still amazes me just how well those lsx motors run. it is for sure on the list of projects down the road. but i never could have built one the way i built my 383. couple hundred bucks here a grand there.
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Old 10-18-2009, 12:22 PM   #19
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Re: bad news 305 vs ls1

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it still amazes me just how well those lsx motors run. it is for sure on the list of projects down the road. but i never could have built one the way i built my 383. couple hundred bucks here a grand there.
I think it all comes down to the fact that they were very underrated, since most people go strictly by market ratings.
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