90 454SS vs 94 Lightning - TrucksTV

[chevy4x494]

does anyone know the size of tires they used with those 18 inch rims on the SS???

[Red94Chev]

Originally Posted by Nitro1799

You guys are probably going to give me a lot of grief for this but, isn't kind of embarrassing for chevy that it takes a 454 big block to compete with a 351 ford small block???
Just my opinion and you'll probably disagree.

You would be thinking right, I am a FORD guy.

If it was an all naturally aspirated motor build-up, the Chevy would win hands down. Meanwhile to remain somewhat remotely competitive, the Ford needs a little boost.

[speedracer326]

Originally Posted by Nitro1799

You guys are probably going to give me a lot of grief for this but, isn't kind of embarrassing for chevy that it takes a 454 big block to compete with a 351 ford small block???
Just my opinion and you'll probably disagree.

You would be thinking right, I am a FORD guy.

Stock for stock, yeah. That 454 is a joke, but so is the fact that it takes a 351HO to keep up with that unnecessarily restricted 454 with 7.8:1CR. Is that something worth bragging about? Mod for mod that 454 will hand the Ford it's ass, guaranteed. Let's not forget now that the 454 is breathing, the Ford needs boost to keep up. There's no replacement for displacement.

Originally Posted by speedracer326

There's no replacement for displacement.

OWNED

[cool_as_crap]

Originally Posted by Nitro1799

You guys are probably going to give me a lot of grief for this but, isn't kind of embarrassing for chevy that it takes a 454 big block to compete with a 351 ford small block???
Just my opinion and you'll probably disagree.

You would be thinking right, I am a FORD guy.

Isn't the Fail supercharged though?
That takes any advantage the big block Chevy had right there.

[Red94Chev]

Originally Posted by chevy4x494

does anyone know the size of tires they used with those 18 inch rims on the SS???

255/55R18 Yokohama ADVAN S.T., 285/50R18 ADVAN S.T. on 18X8 Polished Torq-Thrust II, 18X10 Polished Torq-Thrust II, 5x5 b.c. 4.5" B.S.

[fiream400]

Originally Posted by Pauly

Werd.


And whats up with no drag racing? No insurance? Thats ghey. Go to some track on a Friday night, pay your $15 and put a pass or 2 on each truck. At least get a timeslip for each truck for comparison. I'm choked that they didnt race each other.

peace
PAuly

They've got insurance but it's that they are TV personalities and that if one of them wrecked and hurt a bystander somehow; there could be a huge lawsuit. They rented a track and ran them, it will air sometime in october along with the sport truck shootout that they went to.

[hornsfan10609]

Those BASTARDS, they used the exact same 18" Torq Thrust IIs on the 454 I picked out for my truck 3 years ago. Oh well, they look awesome. And my truck will have a MUCH better stance.

[Red94Chev]

And the Chevy took him by a nose.

They're not even moving there. Look at the flag on the antenna.

[x95Tahoex]

Don't have to be moving to beat the ford

[heavy-chevy]

the 454 need less rake, that looks kinda bad with like 3" difference. still, words cant even describe how much more sporty it looks then the lighting. not that the lightning looks bad, it just looks like a poor attempt at the street truck scene, its so freaking big and bulky looking.

[Chevy1500z71]

its not that the lightening is big and buly, they are both big trucks. its that the ss has much smoother body lines, and just an overall better looking truck, the ford is just not sporty looking that year. that body style ford looked good lifted, thats it...

[Red94Chev]

Dyno time!! Did anybody catch the episode last weekend? http://www.powerblocktv.com/sites/tr...15&ep_sea=0802.
Got the dyno numbers. If the dyno tells the tale, this one is going to the Lightning at the track. Bet Ryan wishes he put the higher stall converter in now along with dual exhaust.

Lightning - http://www.youtube.com/watch?v=OClCLvzo77M
310.5 rwhp
406.2 rwft-lbs

454SS - http://www.youtube.com/watch?v=5zvR3VdPWVA
318 rwhp
351 rwft-lbs

[1BadAction]

Originally Posted by Red94Chev

Lightning - http://www.youtube.com/watch?v=OClCLvzo77M
310.5 rwHP
406.2 rwFt. Lbs

454SS - http://www.youtube.com/watch?v=5zvR3VdPWVA
318 rwHP
351 rwFt. Lbs.

that torque number on the big block sure looks suspicious.

[Red94Chev]

Not really to be honest. 351ft-lbs with ~20-22% drivetrain loss is 440-450ft-lbs at the flywheel. I predicted 448 hp and 470ft-lbs using Desktop Dyno (from post# 72), but this is modelled with a decent exhaust (dual exhaust, headers). This 454ss is running a y-pipe, single cat, single 3" exhaust. Not surprising it's down a few ponies. They also had problems getting more power past 5000 RPM. At 5000 RPM, looks like 435 hp according to my graph. Add a lesser flowing exhaust and you'll lose a lot more at high RPM. Pretty easy to drop power in a choked system.

[gmc406]

Have they ran them on the track yet? I assume not. When?

[tex2500]

Back when they built the motor for the SS they were expecting near 450 HP why is it down so much in the dyno numbers? Thats a lot more than 20% powertrain losses.

Also, the sts turbos do a good bit for low end torque, those numbers for the lightning look about right. The estimated output for a vortec 5.3 on sts website is something like 350hp and 450lbs/ft at the wheels with a turbo, and its a little bit more powerful stock than an HO 351. Assuming he has about 2500 stall converter the lightning should be at full boost off the line and with an auto trans the lightning could very well beat out the naturally aspirated SS.

I hate it because the SS is a much better looking truck, but modern engineering has a way of winning out.

[Red94Chev]

Originally Posted by tex2500

Back when they built the motor for the SS they were expecting near 450 HP why is it down so much in the dyno numbers? Thats a lot more than 20% powertrain losses.

318 rwhp is ~400-408 fwhp. 450 fwhp was an estimate and it probably would be if he had better exhaust. I believe this is the max hp of this engine when properly configured with optimal tuning and exhaust. Could also have a tuning issue with ignition/spark since they had problems with making power over 5000 RPM. Max power should be at 5500-5600 RPM with that Edelbrock camshaft. A:F ratio is only part of the equation. Most of the tuning performance affecting torque (and hp) is due to ignition timing.

Originally Posted by Red94Chev

454SS - http://www.youtube.com/watch?v=5zvR3VdPWVA
318 rwhp
351 rwft-lbs