darrensls1

It really comes down to basic math aka power to weight ratio through a 1800 rpm 1.6 str stock converter. You can't compare a car that is lightened by 700-800 pounds to a full weight (or near full weight car). Because when you remove that much weight you ultimately gut it and making it blatantly obvious. So if he had any significant weight reduction then he would know it and so would we.

So there is NO way a 3400+ lb car with 150+ driver is trapping 116 and cutting 1.7 60's with just a lid, gears (through a 12 bolt no less) and full exhaust. Not even close.

99reddevilFRC

Im very sorry if someone else does not get the same performance as another, ive noticed that some peoples mods in their sigs dont make sense with their trap speeds. I dont understand how a f body with big aftermarket intakes, big cam, headers, etc only trap 117. Are guys putting concrete in the trunks? Its ok if you are, its your car as long as your happy. I had a 35th ann. In 02, before i put a 216-220 little cam in, it went 12.2s at 116 with nothing but mac mids, before the macs, it went 115. It went 121 after the cam and skinnies. It did the 116 and 115 in full weight, full factory wheels, and at the time i weighed 225. I never over tire a car, i never over gear a car, and i never over cam a car. Ive been down the strip at least 7-8k passes, i dont tell lies purposely. There is nothing wrong with being wrong as long as you learn from it. Jesus loves you.

wg871

iTrader: (15)

Did he switch the cam from his ls6 motor and the ms3? Then it would be a slighty better camshaft than a LS1

in b4 "I know it was a LS1 cam it came out of my cousins wifes brothers 01 z28"

darrensls1

It's called an automatic transmission. Manuals dyno and trap better then autos do. Bigger torque converters are also less efficient then smaller ones so they rob a little power as well.

LOL. No concrete but I do have a steel driveshaft. It weighs more and robs more power but that's a small price to pay for piece of mind when I lift my front tires on the launch and pull 1.5x 60's.

My numbers are on par for my mods and full weight including still having my AC. My gears, stall and camshaft all match very well for a drag racing application (which is all the car does these days). What numbers are not on par are the ones being claimed here. Not even close.

And Jesus loves everyone. But that doesn't change the fact that his 60' and trap speed are not possible from a full weight, bolt-on ls1 that is still running the stock torque converter.

TransAmWS.6

I don't see how you trapped 115 in a stock car. Somethings not adding up here.

flintwrench69

iTrader: (11)

Some tracks timers are off by a few mph. Thats a possibility but most likely with trap speed & 1.7 hole shot the car isnt stock.

AChotrod

iTrader: (17)

My old 00 Formula A4 that I bought brand new. Went 12.7 @108. This is exactly what was done.
Full weight minus spare/jack and rear seats. Other than that FULL weight.

Stock rims with a 245 Nitto out back.

LCAs,PHB,STB,SFCs other than that bone stock suspension.

Exhaust was a Random Tech cat-back with stock cats and manifolds.

Engine was bone stock with a ported TB. SLP lid, SLP ram air(like the chrs1313 but smaller) and plug wires. Rest of the motor was BONE stock and the trans had never been touched.

Tune was a Hypertech Power programmer.

All that is piddly stuff and the car ran real good IMO.

Now if I added a nice gear, took some weight out, slapped in some LTs without cats, Got a real tune I dont see picking up 8mph impossible. Now just throw in a stall and Im thinking mid 11.s in good weather.

Car might just be a freak.

darrensls1

Basically you had a lid, catback, ported throttlebody, ram air and a questionable tune. Just off the top of my head I would say the lid added 8 rwhp, TB added 7 rwhp and the catback added 10 rwhp.

So you added roughly 25 rwhp. That's good for about 2 mph in trap speed gains give or take. Lets say the tune and ram air added 1 mph to trap speed. That means you would have trapped 105 stock. The weight reduction you did was good for maybe half a mph.

So 100% bone stock with 100% full weight would have netted you a 104.5 trap speed. A tad high for a pre 01 auto but not unheard of.

No way you would pick up 8 mph in trap speed unless you took out a massive amount of weight. You are basically just adding gears and LT's with an ORY. The LT's and ORY might gain you 25-30rwhp with a dyno tune. That would only gain you about 2 mph in trap speed. Gears might add another but that is still just 3 mph in trap speed gains.

To get the car to trapping 116 with no other mods the weight reduction would have to be so extreme that the car would be gutted.

AChotrod

iTrader: (17)

Actually the car went 101mph bone stock. I picked it up brand new at the dealer and went straight to the track the very next day after work. Car had about 200 miles on it and was just breaking into the 13s. When it went 12.7 the car had about 20k on it. The engine wasnt even broken in yet so Id expect better times one the car loosened up some more.

I also think it would have picked up more with Gears LTs ory and a dyno tune than 3mph. Maybe not 8 but I dont think its impossible.

Hell I went 13.3@103.xx in my LT1 bone stock on a 275 nitto and a B&B cat back but that was a t56. Every car is a bit different with the same mods

darrensls1

It takes about 100 hp to add 8 mph to your trap speed. Granted that things like gears, stalls and weight reduction can add to trap without adding HP but still. Gaining 3-4 MPH is all anyone could reasonably expect from a bolt on car adding LT's, ORY and a tune. 8 MPH is the gain most people see from heads and cam or a 100 shot.

Every car is different but all things need to be within reason. If someone said a bone stock LS1 Camaro went 11.9 @ 115 what's the first thing you would think? No way. Someone else says it went 12.7 @ 110. More believable but still not buying it. Then someone else claims 13.0 @ 106 and now everyone says ok I could see that.

In this case the ls1 is claiming a trap speed, 60' and ET that all scream "no way" based on the mods and information presented.

black and pink z28

iTrader: (7)

well i think if they pulled the cam out for a ls6 were did the stock ls6 cam go then i think it went in the ls1 it would be a good little sleeper cam in it come on the 5.3 guy do it when they turbo one i was think about doing it to my 5.3 pick up z06 cam and springs

darrensls1

I'm very bored at work so I did a little leg work to help put this in perspective.

Here the guy had heads, cam, gears, stall, ect and ran 11.5 @ 119 with a 1.7 60'.

Here it took cam gears and a stall to get an 11.8 @ 114.

He needed a cam, intake. 3.89 gears and a yank SS3600 stall to get an 11.8 @ 115.

This was also a mild heads/cam car with gears and ss4000 stall and it took all that to get 11.7 @ 114.

Here is a stock internal barely breaking the 11's and that was with ss4000 stall and significant weight reduction.

And of course there is me. This was before the good fall air so at that time 11.7 @ 115 was my best. That was with a cam, intake, lid, exhaust, 4400 stall, 4.10 gears and a professional dyno tune. Full weight too minus spare and jack.

There are dozens more like this I can quote but I think I have made my point. This is what it takes to run 11's, trap 114+ and get sub 1.8 60's through an automatic transmission. You either need decent rwhp or lots of weight reduction and every single one had a big stall.

ssdeuce74

iTrader: (2)

this is why i like my 6spd w/ a lid it went 12.98@110, exhuast and underdrive pulley was 12.81@112, after the headers and a tune 12.48@115, right of the street with true street tires with slight weight reduction. most likely he put the ls6 or z06 cam in it and has the ls6 intake maybe an underdrive from the original cam swap.

adamantium

iTrader: (3)

I thought this was impressive and OP claims 6mph more than this guy
http://www.youtube.com/watch?v=_iOpO...ature=youtu.be

LS12GO

don't sound right to me

coolmanvette75

iTrader: (2)

How about this: take the car back to the track, film it running, take lots of pics, and post up here so we can tell you what he is hiding from you...

1Bad97WS-6

iTrader: (3)

did you ever find out what was really done to the car..