LS1 in S14

[DanCouga]

think of the possibilities of mispelling!

Damn you Irony. Is nothing safe from your touch?

[frapjap]

I'll be damned. This thread is STILL going on. lol. Its okay, I'm drinking, but not driving. Makes everyone on the road a lot safer.

BTW I know this adds NOTHING to the integrity and importance of this thread.

[dfw240_EE]

We were referring to "whp" or horsepower measured at the wheels. The numbers you quoted are manufacturer rated horsepower numbers, not the same thing.

A car rated at 305hp from the factory, should roughly put down around 265-ish whp. But many LS1's put down around 280-290whp stock. The highest I've seen a stock LS1 dyno was the Firebird Formula I mentioned earlier that put down 304whp.

An LS1 without C5 internals that's putting down over 340whp completely stock isn't a factory freak motor....it's a factory Act of God motor

Hey, factory HP numbers are just averages of test engines. Real ones will actually perform higher or lower, hovering around the factory spec. It COULD happen that you get the one magic motor

[midnightclubbaa]

We were referring to "whp" or horsepower measured at the wheels. The numbers you quoted are manufacturer rated horsepower numbers, not the same thing.

A car rated at 305hp from the factory, should roughly put down around 265-ish whp. But many LS1's put down around 280-290whp stock. The highest I've seen a stock LS1 dyno was the Firebird Formula I mentioned earlier that put down 304whp.

An LS1 without C5 internals that's putting down over 340whp completely stock isn't a factory freak motor....it's a factory Act of God motor

ok well it's domestic guy stock (lid and exhaust) (basically intake and exhaust)

it was still putting out more than what the average Ls1 with those mods should put out

[dfw240_EE]

I confess that I have reservations that simple modifications such as intake and exhaust could account for a 17% increase in power.

However, I will keep my reservations, and you keep working on the car. We will leave it at that until Dyno results prove one way or the other.

[PantherRacer]

Hmmm, I did read an article abotu the buick grand national T-type...wonder how oen of those engines would do in a 240.all that V power/feel WITH the sounds of a turbo.Though I personally like my inline engines.

[SimpleEnigma]

1987 Buick Regal GNX (Supe'd up factory GN):

3.8L SFI V-6 Intercooler Turbo

Blueprinted block, shotpeened rods, race grade main bearings and special high rpm valvetrain with Special Tuned ECU by ASC/McLaren

Garrett AiResearch Turbo linked to an upgraded intercooler

0-60mph in 4.7s (as tested by C&D) with 1/4 mile at 13.5 seconds with a trap speed of 102mph

only 547 of these monsters were built.

Factory rated at 275hp @ 4400rpm and 355 ft-lbs of torque @ 3000rpm

I wouldnt mind putting one of those in my 240sx.....especially since they are popular for upgrades, would be easy to break the 300hp mark without much modification....and with the amount of torque that thing generates, I dont think anyone would be unhappy with the pedal

info straight outta "The Standard Guide to American Muscle Cars 1960-2000 3rd Ed." by John Gunnell

[Aries]

DIE THREAD DIE?

LOL.

Seems there is still a lot of interest in this.I could be convinced possibly to start producing the kits again.

[midnightclubbaa]

do it

[j-z]

i had to do it... wouldnt an entire front clip be the best way to do this. is it possible to still retain a/c? wouldnt i be able to use the stock cluster that came with the clip and use all of its gauges? also, would someone mind posting the specifics about the lt1 and ls1 series engines. such as what year cars they came from, materials used w/motor, power figures, and anything that would be useful when deciding to choose a motor. i drove my moms lightly modded 96 z28 the other day for the first time and i must say ive been bitten by the v8 bug. what a nasty lil bite that bltch left on me.

[flyboy367]

hi. im very new hear but im already catching some lingo. i still have no idea what the nissan motors numbers are but im a former gm tech, i had camaros and zo6's at my hands everyday. as fas as coolenss factor yea a ls1 gets that. but i have learned some things that bring me here. i was always a bigblock guy, had many camaros (even a v10viper) then money got tight i sold them all and went to building smallblocks. yea the ls1 owns right now but then i found even better. the new pontiac l67 (supercharged 3.8 multiport.) with just a few mods my 3900lb gtp hit 12.6 womping stock ls1's. a little more and some guys re hitting 10's now. but they started turboing them. now lets say your 2800lb sx. put the 3.8 in stays the same weight but a stock ower end is goof to around 450hp. so now you got a monster that if you lighten up your car a bit will be into the 10's. i recently was driving a saturn (gas milage thing) and the things to do on a small displacement engine are starting to cream my beloved gm cars. since my satty got squished by a tractor trailer im looking for a budget driver but rwd. thats why im here. i say go for it, but bear in mind moving weight around the car for best results. id even go as far to say your probably better off getting a ws6 trans am frame, or a lighter vette frame and working off that. good luck

[j-z]

id even go as far to say your probably better off getting a ws6 trans am frame, or a lighter vette frame and working off that. good luck

but then you wouldnt be driving a 240sx now would you... plus the cost would be ridiculous times more if you were to do that.

Modified by j-z at 5:34 PM 5/12/2005
Modified by j-z at 5:36 PM 5/12/2005

[Aries]

trying to meld the front clips would take a master body man and much time and money.

Much easier to use custom mounts, and then bolt it all in.

[j-z]

no no no. i was talking about when i get the motor... as in order a complete front clip. that way i would have everything i would need all in one place and not have to search for misc ****. i would never ever think of doing that even though i am a master body technician. you all will be seeing either an ls1 or a lt1 in my car at the end of summer. i want the ls1 if i can get a clip for a good deal. i cant wait

[Aries]

no no no. i was talking about when i get the motor... as in order a complete front clip. that way i would have everything i would need all in one place and not have to search for misc ****. i would never ever think of doing that even though i am a master body technician. you all will be seeing either an ls1 or a lt1 in my car at the end of summer. i want the ls1 if i can get a clip for a good deal. i cant wait

in that case, a full front clip would be very helpful. BTW, if you want to keep your poer steering you will be needing a GTO oil pan and pil pump pickup

[JTinJacksonvilleNC]

Ok, durn it! You've kept this thread going, until I have to put another 2 cents in. Want to impress people? I, myself and others I've talked to about this, think the most impressive small block Chevy to see when opening a hood is that bad-*** ***** known as the ZR-1. The horsepwer potential would seem to be a step above also. Just think about hanging a pair of hairdryers on that, in a car as light and nimble as a 240, and I get a stiffie. I better quit before I find myself doing something like this. Just so happens, with the motor work I need to do, I'm at a crossroads and have to make some kind of decision soon.

[j-z]

thanks for the tip. any other helpful pointers like that i should know of? is it possible to still keep the a/c? im pretty sure you can. i just want to make sure...

[Zetec]

DIE THREAD DIE?

LOL.

Seems there is still a lot of interest in this.I could be convinced possibly to start producing the kits again.

Do it and you will have a definite customer outta me!

[Chingon]

Aries, one question. I've seen the ls1 in an s14, and to tell you the truth, it seemed really far forward. I don't know if it was a perspective thing or what not, but I thought you'd have better off-hand experience on the placement of the thing. In the rx7 I posted earlier, the ls1 sits really far back, almost in line with the strut towers.

[Aries]

Aries, one question. I've seen the ls1 in an s14, and to tell you the truth, it seemed really far forward. I don't know if it was a perspective thing or what not, but I thought you'd have better off-hand experience on the placement of the thing. In the rx7 I posted earlier, the ls1 sits really far back, almost in line with the strut towers.

Correct, to clear the opwer steeing plugs in the rack, and allow proper submersion of the oil pump, the LS1 has to be set about 5 inches forward. This makes for a very tight squeese between the bell (waterpump) and the radiator. The other option is setting the motor higher up in the engine bay and putting a 2-3" cowl hood on. But then its not a sleeper.

[Aries]

thanks for the tip. any other helpful pointers like that i should know of? is it possible to still keep the a/c? im pretty sure you can. i just want to make sure...

a/c can be kept with some creative plumbing to keep the lines out of the way

[flyboy367]

meh, id be cooler with a viper v10 my 98 had 514 rwhp when i dyno'd it. if i didnt loose my job from gm paying us to much the next month would have had 831rwhp with a twin t kit.

[Meantime]

no no no. i was talking about when i get the motor... as in order a complete front clip. that way i would have everything i would need all in one place and not have to search for misc ****. i would never ever think of doing that even though i am a master body technician. you all will be seeing either an ls1 or a lt1 in my car at the end of summer. i want the ls1 if i can get a clip for a good deal. i cant wait

My other car has an LS1 with LS6 intake. Good motor, very powerful, tends to drink oil, has some cold start knocking issues (piston slap). transmission is a T-56, same as Viper but with different synchros. The weak link in the driveline is the 10 bolt Zexel-Torsen rear end, definitely think about a 12 bolt Moser or Ford 9" if you're going to do the swap.

Also, the 310 bhp rating for the late F-bodies is conservative. It's closer to the C5's bhp, so whp is likely around 290-300.

[JTinJacksonvilleNC]

Also, you may want to consider using the rear-end from one of the FOX4 chassis Cobra Mustangs. Bulletproof and fully-independant. What more could you ask for?

[Chingon]

a z32 tt r230 vlsd, which is probably easier to work with, and is almost 9". Not many gear options though.

[Aries]

a z32 tt r230 vlsd, which is probably easier to work with, and is almost 9". Not many gear options though.

yep.RS210 in mine. 8.93" and when properly assembled, nearly indestructable. The last one I broke broke only the ring gear.

[dfw240_EE]

Thought you guys might be interested. I googled "LS1 Engine Weight" and got this:

http://corvetteactioncenter.co....html

of note is "Total Dressed Engine Weight: Manual 497.2lbs"

zerothread?id=63464

This recent post (somewhere in the 2nd page) said that the KA weighs about 500lbs, so the LS1 is indeed about the same weight as the KA.

http://www.drifting.com/forums....htmlThis site puts the SR20DET at about 490lbs. Though these figures seem like estimates to me.

[JTinJacksonvilleNC]

Curse each and every single one of you that has posted in this thread! You've kept on and kept on until I finally lost my sanity! I blame all of you for my recent actions. Actions like the purchase of a 5.8HO with OD transmission. You've pushed me to the brink and left me with no choice but to drop this in that black '89 coupe sitting outside. If I wind up in the local mental institution, twiddling my thumbs while rocking back and forth, mumbling some hopelessly lost crap about lifters or something, I'll one day return to haunt each and every one of you for converting me!

[j-z]

does anyone know of a place that has specs of both the ls1 and lt1? ive searched numerous times and have found nothing. i want to know the weight of both motors and the exact differences between the two. another thing im wondering about is the placement of the motor in the engine bay. seems that the lt1 fits farther back in the bay than the ls1? i saw a really nice lt1 vette motor on ebay for a good price. ive started saving already and working my *** off to make money for this. lt1 i could get in a month or so. the ls1 would take about 3 months to save for. aries, hook a brotha up with some info!

[dfw240_EE]

http://www.grandsportregistry.com/lt1vslt4.htm

This gives the specs and comparison for the LT1 and LT4. Little time, effort, and a little skill in excel, you could make your own comparison chart.