Posts: 3985
Joined: 7/26/2004 From: St. Louis, MO Status: offline
Yes, JD and I and a few other LS1 guys have said that many times. In fact, he stickied an LS1 vs Mach 1 thread that discussed that, but "SS = Z28 = Firehawk = WS6" isn't in the title of the thread, so we must still deal with people (most of whom own none of the above vehicles) who insist that certain models are faster/more powerful. In the case of the Firehawk, it's possible that a coupla mods done by SLP do the intake and exhaust might make a wee bit of power, I saw a dyno sheet that supported that. I don't think that those differences should amount to 35 hp, though (345 rating vs the Z28's 310).
Yes, the LS1 lowdown. It's the Gen III GM V-8. 346 cubic inches, 5.7 Litres of power.
1997: The LS1 was put in the new C5 Vette, packing about 350bhp. 1998: The LS1 stayed in the Vette and was also put in the slightly modifed 4th gen Camaro/Firebird. It also spawned 4.8 and 5.3 liter truck versions. 1999: Kept production in Vette and Fbodies. 2000: Same as above, still making around 350bhp on ALL LS1-equipped models, no matter the manufacter rating. Only difference was a cored rear cover oil passage. 2001: Addition of LS6 intake which bumped power up to around 370bhp on ALL models. All Corvette Z06s came with the LS6 block which, unless I'm mistaken had the LS6 bulkhead vent windows in #2, 3, and 4 bulkheads, which eliminated need for 28.5mm drilled vent hole. 2002: Same as above. Final year for Fbody production. LS6s got power upgrades to 405bhp. 2003: LS1 in Vettes, LS6s in Z06s and CTS-Vs. Block was converted to all short head bolts and greater step from cam bearing parent bore to cam bearing bore with no change to part numbers. 2004: Same as above, except now offered in Pontiac GTO.
The Gen IV V-8. LS2 364 cubic inches, 6.0 litres of power. 2005: Offered in Pontiac GTO, C6 Vette, SSR, and truck applications. 400bhp. Short head increased-step cam bore block design, with 101.6mm cylinder bore diamteters, low mass block and main cap design. 2006: Same as above with the addition of the LS7. 7.0 liters, 427.8 cid. 530bhp. Ownage.
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Pearlescent Teal 1995 Z28 M6 K&N CAI, Flowmaster Cat-back Exhaust American Racing Torque Thrust IIs Richmond 4.10s
I outrun 2 LS1 Z28's the other day in my Si y0, but this new kid with an SS says he'll outrun me. What do you guys think? Do I have a chance against the SS?
Posts: 3985
Joined: 7/26/2004 From: St. Louis, MO Status: offline
quote:
ORIGINAL: 98LS1
I outrun 2 LS1 Z28's the other day in my Si y0, but this new kid with an SS says he'll outrun me. What do you guys think? Do I have a chance against the SS?
That's pretty much exactly the kind of posts we see. "You might be able to take a regular Z28, but whoa, look out for those Super Sports and Firehawks. You'll get schooooled!"
Oh, and I think 370 at the crank is pretty generous, 345 or so would probably be more accurate.
Well, if they're pulling (mind you, I'm talking about the '01-'02s here) 315rwhp minimum with a %15 drive train loss, that is 370bhp. With a 12% drive train loss it 325rwhp, which is just a wee bit higher than the average.
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Pearlescent Teal 1995 Z28 M6 K&N CAI, Flowmaster Cat-back Exhaust American Racing Torque Thrust IIs Richmond 4.10s
Posts: 3985
Joined: 7/26/2004 From: St. Louis, MO Status: offline
quote:
ORIGINAL: SSteele
Well, if they're pulling (mind you, I'm talking about the '01-'02s here) 315rwhp minimum with a %15 drive train loss, that is 370bhp.
315 minimum? Very very few put down 315 on the rollers in stock form, it would have to be a generous dyno. Im appreciate your opinion of my engine, though.
Team MF Member #069 Posts: 8242
Joined: 5/21/2004 Status: offline
quote:
ORIGINAL: TommyV8
quote:
ORIGINAL: SSteele
Well, if they're pulling (mind you, I'm talking about the '01-'02s here) 315rwhp minimum with a %15 drive train loss, that is 370bhp.
315 minimum? Very very few put down 315 on the rollers in stock form, it would have to be a generous dyno. Im appreciate your opinion of my engine, though.
Not the 01-02 cars, average for these is 300-315 rwhp.
Posts: 148
Joined: 3/17/2006 From: livonia mi /rollin in az Status: offline
Very true.its been said too many times, and some readers still dont see through the misconception..ALL ls1s will dyno within 10 -15 hp of eachother in stock form.As far as the SS,WS6 and Firehawks go,these cars are just badge and small body details that give these cars a higher resale value.My point, for those who dont want to admit it.....Take a stock Z28[manual] and run it heads up with a SS[manual] with equal drivers.I firmly stand by the fact that since the guy in the SS payed thousands more, they will cross the line within tenths of eachother..its the badges and the spoiler and hood that makes these cars stand out ,not the fact that the guy who could afford the base model can go heads up all day long....
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who needs gas mileage when u can own the road!!!! Have a Rice day>i know i will
There where i few details missed that i have said on some other posts.
2001: The LS1's got a lightly smaller cam, and they got a slightly different head core. Heads changed from casting #853 to #241. Also the LS6 block came on 15% on the F-bodies.
2002: 25% of the F-bodies got the LS6 block.
There is essentially no power difference between models. Like said its just looks and handling changes. Some of the SLP cars did get some select extras worth more hp's though. Also it is not uncommon for a LS1 to put down 315rwhp in its stock form. It happens sometimes. The norm though for 01-02 is around 305-310. The 97(vette)-00 is around 300+/-. But there are the few that put down 315, probably LS6 blocks on most, because of the better oiling, im not sure. That point still hasnt been tested.
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2001 Pewter T/A WS6 6-Speed 329HP/342TQ 13.1@109 on Nittos w/321hp/337tq Lid and Filter/Magnaflow Cat-back/160 Thermostat/TB Bypass/Pro 5.0 Shifter Nitto DR's/RAM Clutch/200 MPH Gauges/Ported-Polished TB/Raptor Shift Light Electric Cut-out
Posts: 3985
Joined: 7/26/2004 From: St. Louis, MO Status: offline
quote:
ORIGINAL: JD1969
Not the 01-02 cars, average for these is 300-315 rwhp.
I guess you probably know more about it than I do; I never dynoed mine. My gal and I went to dyno our Camaros and I was gonna do one run stock, one with the lid, and one with the cutout open but it was broken when we got there. Now that I have longtubes and a catless Y-pipe I'll really never be able to do it stock, so I'll never know what it would have put down.
quote:
ORIGINAL: blown32v
Not to leave the corvettes out,they are just lighter,with a better aero package and GM gets a little more hp out of the cam.
True about weight being the straight-line performance difference, but I believe the cam specs are identical.
Posts: 148
Joined: 3/17/2006 From: livonia mi /rollin in az Status: offline
What do u think the reason for the hp power difference is???[corvettes vs other ls1s]Not the cost,or the wieght,or the looks.....GM,as i said. tunes the engines for more power.This might include the internals of the engine and how it performs.Do u know what gives the ls1 gtos 350 hp???Just some questions to your reply tommyv8..Do u also know cams can be tuned for more or less power??
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who needs gas mileage when u can own the road!!!! Have a Rice day>i know i will
So as you can see there has been basically very small differences in cams. The 01-02 is basically the same.
To answer some of your question 32valve. The vettes dont make more hp. There are equal to the F-bodies and sometimes actually make less power, because the independant rear suspension robs some hps. The differences are actually just weight. F-bodies are only about .2 behind the vettes on the 1/4 with everything being equal(not including ZO6's). The GTOs rated at 350hp where jsut actually given the proper rating. The F-bodies where underrated by about 30hp. They should have been rated at 350 also. The speculation is that the vette owners would get pissed and GM would lose some long time vette guys. Dont know what made them change there minds with rating the GTO correctly. Maybe they discovered it wouldnt matter.
Also i just wanted to let you guys know that LS1tech just opened up a new Forum site for the mustang. Here is a link to it, you should go and check it out.
What do u think the reason for the hp power difference is???[corvettes vs other ls1s]Not the cost,or the wieght,or the looks.....GM,as i said. tunes the engines for more power.This might include the internals of the engine and how it performs.Do u know what gives the ls1 gtos 350 hp???Just some questions to your reply tommyv8..Do u also know cams can be tuned for more or less power??
The reason is very simple. Spend $50k on a 350hp Vette, or $25k on a new f-body with 350hp. That doesn't look very good. Hence the reason they're rated lower than the Vette. Mine put down 325rwhp with exhaust/drop-in k&n. It's the slowest year made and was dyno'd with the LS1 intake and heat soaked like a SOB.
Goes back and see this was already answered....DOH!
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Now that I have longtubes and a catless Y-pipe I'll really never be able to do it stock, so I'll never know what it would have put down. 
