Lt1/ls1

[MightyRiga]

Well, I have a few questions for you guys, and figured it would go here.

What, exactly, is the difference between an LS1 and an LT1? Obviously, performance numbers, but I mean...redline, displacement, how to tell it apart by looking at it, etc.

Also, how much would a M6 transmission cost? Yes, I know it is much easier to just buy a manual to start, but most of what I find are autos . This is more of a last ditch/curiosity kind of thing.

What are the differences in body styles? What years did they run from? (i.e. high rise spoiler on Firebird). Do they have a particular name?

Most importantly, handling specs? I like the Talon's handling, how would a Fourth Gen compare? Please facts, not "I went around this corner faster because DSMs suck."

What should I look for when buying an Fbody (Fourth Gen, in this case)?

[JoeliusZ28]

Well, I have a few questions for you guys, and figured it would go here.

What, exactly, is the difference between an LS1 and an LT1? Obviously, performance numbers, but I mean...redline, displacement, how to tell it apart by looking at it, etc.

Also, how much would a M6 transmission cost? Yes, I know it is much easier to just buy a manual to start, but most of what I find are autos . This is more of a last ditch/curiosity kind of thing.

What are the differences in body styles? What years did they run from? (i.e. high rise spoiler on Firebird). Do they have a particular name?

Most importantly, handling specs? I like the Talon's handling, how would a Fourth Gen compare? Please facts, not "I went around this corner faster because DSMs suck."

What should I look for when buying an Fbody (Fourth Gen, in this case)?

an LT1 based on a traditional small block 350. An LS1 is the new generation IV small block. They look nothing alike, and share practically none of the same parts.

[GETGONE]

LT1 4th gens were from 1993-1997. LS1 4th gens were from 1998-2002. The Trans Ams have had the high rise wing as standard since 1995. 1993 and 1994 models it was an option. LT1's have more low end torque where as LS1's have more upper RPM HP. Stock for Stock a LS1 will beat an LT1 by close to a second in the 1/4. I can't comment on handling as I hate FWD cars and to me handle like crap.

[SlipStreamZ28]

Theres a world of difference, In fact they are completely different motors and the cars they go in are different in appearence as well. Assume all stats are the same for camaros and firebirds

there are three generations of SBC engines (Small Block Chevy)

Gen I (one) = Standard old school SBC, This is the same SBC chevy had ben using since the begining of time. It was a 5.7 liter 350 cubic inch V8 engine. Most Third generation camaros used a 5.0 liter 305 but in the later years the IROC Z Camaros came with a version of the Gen I known as a L98. It was Fuel injected with a system called TPI or Tuned Port Injection and made 220 h.p and 320 Ft/lbs of tourqe at 3200 RPM with a compression ratio of 9 to 1. Chevy actually keep mucking around with a couple different 5.7 V8 variants for the Third gens throughout the years so its a little hard to say it came with any one type of SBC.

[IMG]http://rds.yahoo.com/_ylt=A9gnMiYBmPhFEGYBigGjzbkF;_ylu=X3oDMTA4NDgyNWN 0BHNlYwNwcm9m/SIG=1209ap51t/EXP=1174006145/**http%3A//www.holidaywest.com/gallery/iroc2.jpg[/IMG]

[IMG]http://rds.yahoo.com/_ylt=A9gnMiZImPhF3mEBGGmjzbkF;_ylu=X3oDMTA4NDgyNWN 0BHNlYwNwcm9m/SIG=12bbsqiel/EXP=1174006216/**http%3A//www.iroc-ss.com/images/iroc/ftr_james_engine.jpg[/IMG]


Gen II = This is my baby, The LT1. LT1's were originaly put in the early 90's vette and then made the shift over to the camaro in 93' when chevy Unveiled the forth generation of camaros and started putting LT4's in the vettes ( basicly LT1's with some better parts). The Gen II made signifigant changes over the basic Gen I's. The water pump was cam driven vs. belt driven, a "Opti-spark" distributor ignition system was installed instead of the standard up top distributor. The Motors Intake had some cues from the third gen IROC motors but the intake tubes where dropped in favor of a more direct flowing system. Water jackets were moved around among other physical changes and thus Gen I and Gen II parts were not compatable. The size remained the same at 5.7 liter but pushed out more H.P. At its peak the motor made 285 h.p ( 305 h.p for the 97' SS) and 340 ft/lbs of tourqe at 4000 RPM with a fairly high compression ratio of 10.5 to 1 ( thus the need for premium fuel)


Forgive me for using pics of my own car

[IMG]http://rds.yahoo.com/_ylt=A9gnMiHUpfhFhwkASFOjzbkF;_ylu=X3oDMTA4NDgyNWN 0BHNlYwNwcm9m/SIG=1226bmn5a/EXP=1174009684/**http%3A//transamws6.com/pics/transam/lt1_top.jpg[/IMG]

Gen III = The almost legendary LS1, Chevy Began putting the LS1 ones into the vettes in 97' and then Camaros in 98'. Both LT1 and LS1 camaros are considered 4th Gens but a LS1 camaro can almost immediately be recognised by the front bumper cover and headlights which are non-encapsilated ( Bulbs are seperate from the housing). The LS1 was pretty much a brand new motor design, the intake system was completely new, It used a distributorless ignition, had 4 bolt mains over the LT1's two bolt and a million other little things that where a improvment over the now aging LT1 design. Horsepower values varied in different years but more or less broke down into

Z28 = 305 h.p

SS = 335 h.p

Vette = 350 h.p

with about 340 ft/lbs of tourqe

Compression was a slightly lower 10.1 to 1

these difference where made with minor parts changes between the models, the main parts of the engine where the same.

IN addition a version of the LS1 called the LS6 was made for the Z06 vettes that made 400 h.p.



[IMG]http://rds.yahoo.com/_ylt=A9gnMiSopfhFcyMBiBmjzbkF;_ylu=X3oDMTA4NDgyNWN 0BHNlYwNwcm9m/SIG=1245qebgu/EXP=1174009640/**http%3A//www.konoctimotorco.com/images/ls1_big.jpg[/IMG]

an LT1 based on a traditional small block 350. An LS1 is the new generation IV small block. They look nothing alike, and share practically none of the same parts.

LS1's are gen III Joel, LT1's are Gen II


Sorry I had pics of each gen and engine but they wont post for some reason.

[Phantom409]

LT-1's are getting cheaper now
And the after market is catching up finaly!

LS1's respond well to mild modifications like CIA, LT and a mild tune + the aftermarket has jumped on board with this motor and that makes it all good.

It all depends on what you want to do with it.
I love my LT-1 but if some one offered me an LS1 with the same mods I would take it in a heart beat!!!!

[GETGONE]

FYI the LT4 was ONLY in the 1996 Grand Sport Vettes and the 6 speed Collector Edition Vettes. It was also used in 100 Camaro SS and 100 Firebird Firehawks in 1997. SLP did the swap from a standard LT1 to the LT4. LT4's put out 330HP.

[96mikez28]

Z28 = 305 h.p

SS = 335 h.p

Vette = 350 h.p

with about 340 ft/lbs of tourqe

Nope...

98-00 Z28's had 305, 01-02 had 310

90-00 SS' had 320, 01-02 had 325

[GETGONE]

Well early 01's could have 335HP from the optional SLP dual/dual exhaust and late 01/early 02's had 345HP from the optional SLP dual/dual with the Blackwing airlid(which my car has). But yeah, base 01 and 02's had 325hp.

[MightyRiga]

Could you guys help me out by linking me or showing me handling specs? (i.e. skidpad, slalom, etc.)

Also, Joel, about how much did that exhaust set up cost you? That compilation got me sold, just so you know.

Thank you for the replies so far. Tons of information, so I will have to read a few times over.

^ It's because I'm a DSMer, isn't it?

[JoeliusZ28]

Could you guys help me out by linking me or showing me handling specs? (i.e. skidpad, slalom, etc.)

Also, Joel, about how much did that exhaust set up cost you? That compilation got me sold, just so you know.

Thank you for the replies so far. Tons of information, so I will have to read a few times over.

^ It's because I'm a DSMer, isn't it?

haha. I got the headers on sale brand new for about 385. I paid about 300 for the custom catted y-pipe, but 160 of that was for the cats that were junk. My electric cutout was 250, plus 30 for the pipe, 20 for the welding. The SLP exhaust came on the car, i think the receipt for it was $400. i never had the cutout closed in that video, but its def a good sounding catback. Theres more $ involved in a header install though... gaskets, new 02 sensors, extensions, and header bolts.

[SlipStreamZ28]

Nope...

98-00 Z28's had 305, 01-02 had 310

90-00 SS' had 320, 01-02 had 325

In all fairness I did say that it changed from year to year

[MightyRiga]

So nobody has any reliable places for fourth gen slalom, skidpad, etc.? I found a good page on a third gen (camparing it to the same year Mustang GT), and it didn't seem that bad.

How is the stock suspension? On the GMs I have driven so far, the suspension can handle it ok, but it doesn't seem confident in itself.

[JoeliusZ28]

everyone here likes a good handling car, but youll find that most of this crowd is more interested in straight-line handling. fourth gens handle good with basic modification. Sub-frame braces, shock tower braces, stiffer sway bars, good shocks, 1" drop for some(i think LT1s are OK factory), and good tires will make a 4th gen handle like its on rails. i dont know any skid pad numbers i honestly have never even looked for anything like that.

3rd gens however, marginally out handle a 4th gen stock for stock.

[81DaytonaPaceCar]

So nobody has any reliable places for fourth gen slalom, skidpad, etc.? I found a good page on a third gen (camparing it to the same year Mustang GT), and it didn't seem that bad.

How is the stock suspension? On the GMs I have driven so far, the suspension can handle it ok, but it doesn't seem confident in itself.

This has got some pretty comprehensive info...

http://www.edmunds.com/insideline/do...01/pageId=5854

Includes Camaro Z28, Mustang Bullitt, Celica GT-S, Acura RSX, Mitsu Eclipse GT and others.

Personally, I think they should have used a base Mustang instead of a Bullitt for a more apples-to-apples comparison, but that's just me...

[Phantom409]

1" Drop don't work too well with Long Tubes

Those dumb speed bumps get me now and my car still has stock suspension!