View Full Version : Looking for info on LNF
cheesetits 10-23-2007, 09:52 PM So now that we know that the LNF is going in the new cobalt, I started looking around on Solstice\Sky forums to see what available mods there are for it. I can't seem to find anything major. Does anyone know what the potential is for that engine?
DSMissed 10-23-2007, 10:00 PM I was wondering the same thing. I've been doing a little searching and can't seem to come up with anything either.
If you want to get alot more out of it, a turbo swap is in order. The OEM turbo is basically maxxed out from the factory.
CHARGDSS 10-23-2007, 10:18 PM all the parts for sky and solstice are rediculously expensive in my opinion.
www.raceprecision.com
the built this
http://sky24gt.com/index.htm
if you want more pictures search through skyroadster.com
then there is dejon
http://solstice.dejonpowerhouse.com/
SKCobalt 10-23-2007, 10:21 PM I know there was a guy in Ontario, Canada,,, that had a modified Solstice... pretty sure that it was the LNF (GXP) car... i think he was over 300 hp for sure but im not sure what he did... anyone know from Ontario????
cheesetits 10-23-2007, 10:26 PM If you want to get alot more out of it, a turbo swap is in order. The OEM turbo is basically maxxed out from the factory.
Damn, Is it really maxed out.
olivecj 10-23-2007, 10:27 PM I hope they put this engine in the Pontiac G5 Gxp.
thedubsack85 10-23-2007, 10:27 PM there's a STOCK sky RL retuned to 23 psi.. making 275 WHP and 305 WTQ..
http://www. ******************/forums/sky-discussion/26782-23-pounds-boost.html
put in redlineforums.net
cheesetits 10-24-2007, 04:25 AM I'm wondering why GM hasn't advertised at all for this at all. Why is it so hush hush.
HackAbuse 10-24-2007, 04:26 AM It's a secret weapon
cheesetits 10-24-2007, 04:29 AM It's a secret weapon
hahahhahaha.. thats funny.
CobaltDemon 10-24-2007, 04:54 AM Its so Hush Hush because when one of us pull up to a honda in a LNF powered cobalt ss the honda guys will think its supercharged untill we kick thier A$$ and laugh at them for havin a torqueless car
the LNF engine makes 260 Hp at the crank and 260 torque.
Deathcult 10-24-2007, 09:59 AM Its so Hush Hush because when one of us pull up to a honda in a LNF powered cobalt ss the honda guys will think its supercharged untill we kick thier A$$ and laugh at them for havin a torqueless car
the LNF engine makes 260 Hp at the crank and 260 torque.
is there any proof of these numbers tho? like real legitimate proof? or are we basing these numbers from the hhr ss because if so, it will NOT be the same. difference weight transmission and everything is just different pretty much. its a different car.
wombat 10-24-2007, 11:03 AM I know there was a guy in Ontario, Canada,,, that had a modified Solstice... pretty sure that it was the LNF (GXP) car... i think he was over 300 hp for sure but im not sure what he did... anyone know from Ontario????
When we went down to Byron last sunday there was a solstice that ran a 12something 1/4. Then on the second run, he lined up, broke something and bled on the fucking track...:cussing:
BlueSSupercharged 10-24-2007, 11:56 AM Its so Hush Hush because when one of us pull up to a honda in a LNF powered cobalt ss the honda guys will think its supercharged untill we kick thier A$$ and laugh at them for havin a torqueless car
the LNF engine makes 260 Hp at the crank and 260 torque.
So your saying that hondas can beat the ss sc cause the last time i remember my car can smoke a lot of hondas.
SSCobalt~SSZ24 10-24-2007, 11:59 AM Its so Hush Hush because when one of us pull up to a honda in a LNF powered cobalt ss the honda guys will think its supercharged untill we kick thier A$$ and laugh at them for havin a torqueless car
the LNF engine makes 260 Hp at the crank and 260 torque.
yea that was lame pretty sure SS/SC can do the same
RuSSo-29 10-24-2007, 12:05 PM yea that was lame pretty sure SS/SC can do the same
I agree! The SS/SC can be modded to be up there at 260. and it don't take much.
However I love this motor and all the info I had learned about it in the short time I was looking. I am very interested in a possible motor swap!
And I think any1 looking to Twincharge could do so better on this LNF motor.
lewisb13 10-24-2007, 12:08 PM Its so Hush Hush because when one of us pull up to a honda in a LNF powered cobalt ss the honda guys will think its supercharged untill we kick thier A$$ and laugh at them for havin a torqueless car
the LNF engine makes 260 Hp at the crank and 260 torque.
How much does the LSJ make at the crank?
2fastSS 10-24-2007, 12:11 PM the ss/sc makes about 260 at the crank, thats whats funny...I mean the only reason anyone should want this car is if the aftermarket comes out like the dodge did for the srt 4 neon, thats when chevy will start making some money...Till they realize this their still making a mistake
lewisb13 10-24-2007, 12:13 PM I know that may sound dumb but isnt the 205 at the wheels?
Does anyone know if the exhaust manifold off the LNF will fit the LSJ?
RuSSo-29 10-24-2007, 12:17 PM How much does the LSJ make at the crank?
that depends on who/what your asking. GM said it had 205hp. Most ppl are dynoing at 22X.xx at the wheels. so that would be like 240ish to the crank. But if you go by GM's #'s, 205hp would be like 225 at the crank (I think)
tombomb 10-24-2007, 12:21 PM Its so Hush Hush because when one of us pull up to a honda in a LNF powered cobalt ss the honda guys will think its supercharged untill we kick thier A$$ and laugh at them for havin a torqueless car
the LNF engine makes 260 Hp at the crank and 260 torque.
noob!
Scythe_Snake 10-24-2007, 12:26 PM is there any proof of these numbers tho? like real legitimate proof? or are we basing these numbers from the hhr ss because if so, it will NOT be the same. difference weight transmission and everything is just different pretty much. its a different car.
The LNF engine in the sky redline, solstice gxp, and hhr SS all put out 260 on both ends, I don't see why they'd make it any different for the cobalt. The weight to horsepower ratio may be different, but the HP will be made the same.
I agree! The SS/SC can be modded to be up there at 260. and it don't take much.
However I love this motor and all the info I had learned about it in the short time I was looking. I am very interested in a possible motor swap!
And I think any1 looking to Twincharge could do so better on this LNF motor.
You also forget that when GM says 260hp and 260lb-ft, that they mean to the crank, so you'll have your crank loss. But lets hope GM underrated it again. ;)
I know that may sound dumb but isnt the 205 at the wheels?
Does anyone know if the exhaust manifold off the LNF will fit the LSJ?
That is what GM says it is at, but people dyno between 213-222 mostly, so its obviously more. We get 200wtq to I think. So we have more to the wheels since GM rates it at 200crank tq.
GM rates the cobalt at 205hp 200lb-ft (both of those are to the crank, so we should have less wheel horsepower. But we all know this to not be true).
The exhaust manifold probably will, but like said, the stock tc is maxed out like CRAZY. Its running at like 20psi, but its making lots of power.
that depends on who/what your asking. GM said it had 205hp. Most ppl are dynoing at 22X.xx at the wheels. so that would be like 240ish to the crank. But if you go by GM's #'s, 205hp would be like 225 at the crank (I think)
When GM or any car manufacturer makes a car, and says it has X amount of horsepower, they mean to the crank. So when Gm says we make 205bhp, that means we should be making between 18X-19X to the wheels.
Its so Hush Hush because when one of us pull up to a honda in a LNF powered cobalt ss the honda guys will think its supercharged untill we kick thier A$$ and laugh at them for havin a torqueless car
the LNF engine makes 260 Hp at the crank and 260 torque.
Can't Supercharged cobalts destroy hondas? You act as if the LNF cobalt will be a god send. It most likely won't and will only be a little more powerful than the LSJ cobalt.
lewisb13 10-24-2007, 12:26 PM I know that turbo is maxed out, but if i can detune it i can just throw it on the LSJ and leave the m62 on there too....
RuSSo-29 10-24-2007, 12:30 PM When GM or any car manufacturer makes a car, and says it has X amount of horsepower, they mean to the crank. So when Gm says we make 205bhp, that means we should be making between 18X-19X to the wheels.
Yea, but most ppl pn here (like me) were dynoing on a dyno jet at like 227 to the wheels. Alot of ppl on Mustang dynos were at like 210-215 to the wheels. Which would mean GM under rated it.
I know that turbo is maxed out, but if i can detune it i can just throw it on the LSJ and leave the m62 on there too....
Or sum 1 with the LNF could maybe throw the M62 on it and get to where your going the other way. Either way, I wanna see a good/reliable twin charge. :guns:
lewisb13 10-24-2007, 12:31 PM Someone is selling the turbo and exhaust manifold for 500 bucks!!!
Scythe_Snake 10-24-2007, 12:34 PM I know that turbo is maxed out, but if i can detune it i can just throw it on the LSJ and leave the m62 on there too....
Twincharging would create a lot of heat, just leaving the turbo on there would be the most efficient. And the process won't be as easy as slapping on a SC and a turbo and going about your way. The idea is good, but lets see what happens first. Of course there will be road blocks somewhere. Tuning will also be a bitch.
Yea, but most ppl pn here (like me) were dynoing on a dyno jet at like 227 to the wheels. Alot of ppl on Mustang dynos were at like 210-215 to the wheels. Which would mean GM under rated it.
Or sum 1 with the LNF could maybe throw the M62 on it and get to where your going the other way. Either way, I wanna see a good/reliable twin charge. :guns:
I know, that is what I just said. :lol:
I'd love to see a good twincharge, but even Hahn Racecraft had a problem with it, so I doubt we won't either.
What I'd actually like to see are switched heads. I'd love to see the VVT LNF head on the LSJ. That, would be awesome.
lewisb13 10-24-2007, 12:42 PM Damn if only i could get a vendor to sponsor this, i would so give them my expertise and my car....
rukkee 10-24-2007, 12:43 PM If the horsepower numbers stay at 260/260 for the LNF , i would think a stage 2 LSJ VS stock LNF would be a drivers race correct? Maybe a little advantage towards the lnf due to torque? The other good thing about this is GM should be making better front end part's for the cobalt. Hopefully we will be able to install these on a lsj car.
Scythe_Snake 10-24-2007, 12:44 PM If the horsepower numbers stay at 260/260 for the LNF , i would think a stage 2 LSJ VS stock LNF would be a drivers race correct?
If the crank numbers are at that, then sir I would say you were correct, with a SLIGHT (maybe) biased in the turbo's favor.
You changed it! :lol: Stage 2...I don't know...thats a good question. If the balt makes 245WHP with stage 2, then yes, it will be a drivers race, but still with a turbo balt's biased.
RuSSo-29 10-24-2007, 12:47 PM Twincharging would create a lot of heat, just leaving the turbo on there would be the most efficient. And the process won't be as easy as slapping on a SC and a turbo and going about your way. The idea is good, but lets see what happens first. Of course there will be road blocks somewhere. Tuning will also be a bitch.
I know, that is what I just said. :lol:
I'd love to see a good twincharge, but even Hahn Racecraft had a problem with it, so I doubt we won't either.
What I'd actually like to see are switched heads. I'd love to see the VVT LNF head on the LSJ. That, would be awesome.
oh, lol :lol:
Well Hahn tried the twincharge with the LSJ, but not with the LNF.... maybe they could have more luck???
And i'm not to up on the blocks of both the LSJ and LNF?? what would be some of the advantages?? I thought the LNF's block was a lil better?
rukkee 10-24-2007, 12:47 PM haha yep i was thinking as i was typing lol
RuSSo-29 10-24-2007, 12:49 PM If the horsepower numbers stay at 260/260 for the LNF , i would think a stage 2 LSJ VS stock LNF would be a drivers race correct? Maybe a little advantage towards the lnf due to torque? The other good thing about this is GM should be making better front end part's for the cobalt. Hopefully we will be able to install these on a lsj car.
Well, most of the car will be unchainged. It would just be a powertrain upgrade/suspension upgrade. So the core parts to the current 05-07 cobalt's would be able to swap anything that does change.
BlueSSupercharged 10-24-2007, 03:58 PM I think if i remember didnt the gxp with the lnf dyno at 218hp and 248tq to the wheels? To me the lnf in the gxp stock was not very inpressive. It had great mid range power but i wasnt impressed by the low and high range power. I have raced a gxp(i think it was stock) and blew the doors off it. Dont get me wrong I think the LNF is going to be one hell of a motor with vvt and DI but the LSJ is a pretty dam good motor too.
CobaltDemon 10-24-2007, 04:07 PM nO I WAS JUST REFERING TO THE lnf ENGINE. i kNOW THAT THE lsj ENGINE CAN KICK HONDA ASS AS WELL BUT THIS IS THE lnf ENGINE SO I WAS REFERING TO THE LNF ENGINE IN THIS CASE.
Sorry at the time i posted my hush hush comment i was tired and didnt think to phrase that in a different way. I know that the LSJ kicks honda ass already and so will the LNF. It was an honest mistake but i know that the LSJ kicks honda ass.
Scythe_Snake 10-24-2007, 05:22 PM oh, lol :lol:
Well Hahn tried the twincharge with the LSJ, but not with the LNF.... maybe they could have more luck???
And i'm not to up on the blocks of both the LSJ and LNF?? what would be some of the advantages?? I thought the LNF's block was a lil better?
The LNF block is stronger. Hell, stock teh turbo is putting out 20psi. And icnreasing it from 20- to 23 can do wonders. But still.
Well, most of the car will be unchainged. It would just be a powertrain upgrade/suspension upgrade. So the core parts to the current 05-07 cobalt's would be able to swap anything that does change.
If the VVT head can be swaped as well as the DI setup, I'd be interested. That would require major PCM tuning though, :lol: As well as major parts. Secondly, if the suspension is better, I will probably like to trade out parts. But yeah, the engine looks promising, its block is stronger, but I'd still take an LSJ.
And I would rather have this engine on a RWD car like the SKy Redline. ;)
I'm still trying to understand teh direct injection stuff totally.
Archie 10-25-2007, 03:55 AM You would need to swap the pistons in order to have DI, not to mention drilling holes in the block. :lol: Not feasible.
The LNF also has better cooling passages. All around, it is a much much better block, capable of approximately 400hp stock.
BlueSSupercharged- did you race from a dig?:lol: I would expect the GXP/RL to spank a stage 2 balt w/ boltons due to the 200lb weight difference. Maybe you simply out drove him.
distillion 10-25-2007, 08:35 AM I think if i remember didnt the gxp with the lnf dyno at 218hp and 248tq to the wheels? To me the lnf in the gxp stock was not very inpressive. It had great mid range power but i wasnt impressed by the low and high range power. I have raced a gxp(i think it was stock) and blew the doors off it. Dont get me wrong I think the LNF is going to be one hell of a motor with vvt and DI but the LSJ is a pretty dam good motor too.
i destroyed a sky redline on the highway in the spring.
and i do mean it was a total rape fest.
this was also on a sketcy tune with some knock and a leaking flexpipe....
give the LSJ come credit here people.
its not as weak as most of you think....
Lnf May Not Be Going On The Balt!!!!!!!!!!!!!!!!!!!!!!!!!!
REIGN SS 10-25-2007, 08:37 AM Lnf May Not Be Going On The Balt!!!!!!!!!!!!!!!!!!!!!!!!!!
So, your just going to spam all the threads about the LNF Cobalt?
BlueSSupercharged 10-25-2007, 10:57 AM You would need to swap the pistons in order to have DI, not to mention drilling holes in the block. :lol: Not feasible.
The LNF also has better cooling passages. All around, it is a much much better block, capable of approximately 400hp stock.
BlueSSupercharged- did you race from a dig?:lol: I would expect the GXP/RL to spank a stage 2 balt w/ boltons due to the 200lb weight difference. Maybe you simply out drove him.
It was from a 40mph roll. But even if it was from a dig he may have beat me out of the hole but it wouldnt have been long before I pulled past him. The thing you have to remember is gm claims 260hp and 260tq but in the gxp at least all the stock dyno numbers i have seen are about 220hp and 245tq. But it was a stock gxp.
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