LS V6 Questions

[00Manual00]

Hey guys
1. I would like to know how ford gained 10hp and 10tq for the year 2002 over the past 2 years???
2. My v6 LS comes with 3.07:1 rear axle ratio since it is a manual, I was wondering if I could swap in the 3.58:1 from the automatic v6? if not what are my other options? My LS has very long gears and it is killing it..
3. I am planning on doing a custom 2.5" exhaust for my LS will that help it gain some hp? I heard the 2000-2002 v6 LS exhaust is very restrictive...

btw I already have a KKM air intake..

 

[Mechanicboy]

Bump! I'm buying an 01' Manual and have the same questions plus would you need to change to speedo for the gear change? or does it use the ABS sensors for speed?

 

[XxbmxlsxX]

u can swap the gears and you need an sct xcal to tune the car and fix the speedo. make a good air intake(kkm keeps the filter in the engine compartment, not good) and exhaust and get the car tuned. the 2000s hp i think was underrated stock. newer v6s have more aggressive cam timing form the variable valve timing. anything you do will need to be pretty much custom setup but if you know the basics about makin cars faster its not expensive and these cars are easy to work on. trust me ive pulled my motor 5 times now. if youve ever made a car faster just apply the same concepts to this one and get it re-tuned, there is nothing worth buying aftermarket(except sct and nitrous) so youll just have to get crafty. and take some risks.

 

[Mechanicboy]

u can swap the gears and you need an sct xcal to tune the car and fix the speedo. make a good air intake(kkm keeps the filter in the engine compartment, not good) and exhaust and get the car tuned. the 2000s hp i think was underrated stock. newer v6s have more aggressive cam timing form the variable valve timing. anything you do will need to be pretty much custom setup but if you know the basics about makin cars faster its not expensive and these cars are easy to work on. trust me ive pulled my motor 5 times now. if youve ever made a car faster just apply the same concepts to this one and get it re-tuned, there is nothing worth buying aftermarket(except sct and nitrous) so youll just have to get crafty. and take some risks.

Oh now you say something!!

j/k, I'm not sure I'll ever gear mine unless my rear end goes out on me. I will, however, get it (dyno?)tuned eventually.

... make a good air intake(kkm keeps the filter in the engine compartment, not good)... ...there is nothing worth buying aftermarket(except sct and nitrous) so youll just have to get crafty. and take some risks.

I'm going to do build a custom shield for the intake someday, but I disagree about nothing being worth buying aftermarket as the magnaflow exhaust really woke my car up.

 

[Quik LS]

the speed is calculated from the rear abs sensor - so the gearing will not affect it - so no re-tune needed.

now - if you go to a drastic gear ratio change - you may what to alert shift points since the rpm-to-speed will be different.

 

[XxbmxlsxX]

Oh now you say something!!

j/k, I'm not sure I'll ever gear mine unless my rear end goes out on me. I will, however, get it (dyno?)tuned eventually.



I'm going to do build a custom shield for the intake someday, but I disagree about nothing being worth buying aftermarket as the magnaflow exhaust really woke my car up.

not that its not worth anything just really high priced for me, so for me things can be cheaper and just as good or better for less cash if you get crafty. magnaflow system is really nice. i almost got it but couldnt bring myself to spend that much so had one welded up for like 150 so i could buy other stuff, doesnt look as professional but does the job, i had won an ebay auction on a magnaflow system for $200 like 5 years ago but then they contacted me and told me the person that approved it was wrong and i couldnt have it. im cheap really

 

[XxbmxlsxX]

the speed is calculated from the rear abs sensor - so the gearing will not affect it - so no re-tune needed.

now - if you go to a drastic gear ratio change - you may what to alert shift points since the rpm-to-speed will be different.

i shouldve known that. corrected

 

[Mechanicboy]

not that its not worth anything just really high priced for me, so for me things can be cheaper and just as good or better for less cash if you get crafty. magnaflow system is really nice. i almost got it but couldnt bring myself to spend that much so had one welded up for like 150 so i could buy other stuff, doesnt look as professional but does the job, i had won an ebay auction on a magnaflow system for $200 like 5 years ago but then they contacted me and told me the person that approved it was wrong and i couldnt have it. im cheap really

The magnaflow had everything I wanted, full cat-back, 2.25"id pipe, mandrel bends, resonators, x-pipe. The only thing missing is tips through the bumper that aren't that important to me so I'll do that when I get bored with other mods.

 

[Mechanicboy]

trust me ive pulled my motor 5 times now

You pull it from the top or take it out the bottom? I've been contemplating freshening up the bottom end if the weather gets nice. Figured it might be almost as easy to take the tranny and engine out if I have to change the clutch anyway.

 

[XxbmxlsxX]

You pull it from the top or take it out the bottom? I've been contemplating freshening up the bottom end if the weather gets nice. Figured it might be almost as easy to take the tranny and engine out if I have to change the clutch anyway.

the tranny is easy to pull without pulling the motor to do the clutch, probably take you about 3 hours in your garage. i take the motor out the top, just the way ive always done it. some guys say take it out the bottom but i think you need a lift for that and i dont have one

 

[LS6_5SPD]

I've been contemplating freshening up the bottom end if the weather gets nice.
I have to change the clutch anyway.

U mean rebuilding ur block?? If so.. I dont know what ur expectations are.. but try to go forged !!

About the clutch.. which one r u buying? oem? or spec??

 

[Mechanicboy]

U mean rebuilding ur block?? If so.. I dont know what ur expectations are.. but try to go forged !!

About the clutch.. which one r u buying? oem? or spec??

I was looking at a re-ring. I haven't decided yet. I current live w/o a garage so I'm limited on what I can do. I have places I can work on it but I can't be leaving it there and working on it for days. I'm probably moving to a townhouse that has a one car garage that would be big enough for me.

I haven't decided on the clutch yet, I've found OEM, Sachs, Exedy, and Spec. If I go spec I'm thinking of going to the stage two. Stage 3 sounds like it would be too much and I'm worried about how strong the transmission is. I REALLY wished I could find tech specs on these clutches...

 

[LS6_5SPD]

I was looking at a re-ring. I haven't decided yet.

I haven't decided on the clutch yet, I've found OEM, Sachs, Exedy, and Spec. If I go spec I'm thinking of going to the stage two. Stage 3 sounds like it would be too much and I'm worried about how strong the transmission is. I REALLY wished I could find tech specs on these clutches...

Im the same living at a condo, at least my dad n my brother r mechanics and I usually do the stuff in either shop, but I cant leave the car anywhere, I have to do whatever I gotta do in 1 day and get the car out. I know, sucks big time.

If u go forged, u will have a world of possibilities ! if u go nuts a couple of months from now or w/e and u wanna have a TT LS ur engine will be ready, u will only replace pistons if u wanna boost big numbers.

I think going over stage 2 is a waste of money as our V6 wont even hurt the oem clutch. Plus, we dont know about the tranny's limits.

About tech specs, maybe emailing manufacturers will solve that. What about fly wheel ?? I couldnt find a single aluminum fly wheel for us. pisses me off.

 

[LS6_5SPD]

My LS has very long gears and it is killing it..

.

They r not long ! its just not enough power for the car's weight. Honda S2000s have I think the same power than our V6 lol (they wont last as our V6 tho n loose efficiency way quicker)

I whish my 5th gear was a bit longer, I do like 3300 rpms to cruise at 80... too much strees for the engine on long trips. I think our gears r rather too short ! 1st and 2nd should b longer. 3rd n 4rd r ok and 5th too short.
Provably different types of driving. Good look tho !

 

[Mechanicboy]

I whish my 5th gear was a bit longer, I do like 3300 rpms to cruise at 80... too much strees for the engine on long trips. I think our gears r rather too short ! 1st and 2nd should b longer. 3rd n 4rd r ok and 5th too short.
Provably different types of driving. Good look tho !

1st and 2nd are plenty long, do close to 45 in first and almost 70 in second, I think it should be shorter like 40 1st 60 2nd. That reminds me, the soft engine red-line is 6500rpm, but what is the hard red-line when the computer cuts fuel?

3300rpms really doesn't really stress the engine that much as long as the load is low. Keep clean oil in it and she'll be fine. If you really wanted to lower the engine speed some thing that you could do to help just a little bit would be to put a taller tire on. Won't make much difference but what the heck, it's something.

My last car was a v6 eclipse and it ran almost identical 5th gear rpms. That engine didn't care if you were sitting at 2k or 5k it just went. I had that up to about 145, but I haven't even had the LS over 100 yet.

 

[LS6_5SPD]

what is the hard red-line when the computer cuts fuel?

I haven't even had the LS over 100 yet.

Dude, dont even try to hit the rev limiter. Im 100% sure mine does not have fuel cut off nor ignition limiter. Make sure u dont ever miss a gear n step on the gas pedal or u will :q:q:q:q up ur cams, shims, some valves n who knows what else.

I did pushed my LS to 140, it takes so long that becomes scary dude, u'll be doing over 130 miles for a while till u hit 140.

Now this is something that I remember, when the needle went just over 140, the car did some weird sh|t that scare the crap out of me. I was doing 140 and the engine turned off for a second or something, it scared me so bad I cant even remember, I was just about to pass a big a$$ truck when it happend.. I dont remember whether I sh|t in my boxers or not. Anyways.. WTF was that ??? Some crazy a$$ speed limiter or something ???
Im not doing that again to see what the heck that was... till I get my sprintechs in euros and the new brakes

 

[Mechanicboy]

Dude, dont even try to hit the rev limiter. Im 100% sure mine does not have fuel cut off nor ignition limiter. Make sure u dont ever miss a gear n step on the gas pedal or u will :q:q:q:q up ur cams, shims, some valves n who knows what else.

I did pushed my LS to 140, it takes so long that becomes scary dude, u'll be doing over 130 miles for a while till u hit 140.

Now this is something that I remember, when the needle went just over 140, the car did some weird sh|t that scare the crap out of me. I was doing 140 and the engine turned off for a second or something, it scared me so bad I cant even remember, I was just about to pass a big a$$ truck when it happend.. I dont remember whether I sh|t in my boxers or not. Anyways.. WTF was that ??? Some crazy a$$ speed limiter or something ???
Im not doing that again to see what the heck that was... till I get my sprintechs in euros and the new brakes

I've never heard of a computer controlled engine that didn't have a rev limiter.

It does sound like you hit a speed limiter. That's what throttle by cable engines usually do with they hit a speed limiter. After the car slows down 1-2 mph the engine will come back on. Throttle by wire is usually a smooth transition that just levels out.

 

[Quik LS]

The base model Gen1 LSes have a electronic speed limiter at 133mph. The sport / premium with sport were not limited and top out at 147mph

All Gen2 are electronically speed limited to 133mph

The SCT tune can remove this.

 

[Mechanicboy]

The base model Gen1 LSes have a electronic speed limiter at 133mph. The sport / premium with sport were not limited and top out at 147mph

Mine(and him too) have gen1 LS with the getrag trans so it has the sport package. So he shouldn't have hit a speed limiter right? How would he be limited to 147mph if there wasn't a limiter? Should he be limited by mods, drag, wind speed, etc. which would vary from person to person.

 

[LS6_5SPD]

I've never heard of a computer controlled engine that didn't have a rev limiter.

http://www.lincolnvscadillac.com/showthread.php?t=37056




OK if I was limited by something it was not wind. I did so that night cause there was no wind at all, road was totally dry, and I dont remember the temp, but it wasnt cold nor hot.
Something that did held me back a little r my cats, 130k+ miles engine, a full tank of fuel. Btw it took me like half a tank to do that sh|t in 3 attemps.

Quick 147 for LS6s ?

 

[Mechanicboy]

http://www.lincolnvscadillac.com/showthread.php?t=37056




OK if I was limited by something it was not wind. I did so that night cause there was no wind at all, road was totally dry, and I dont remember the temp, but it wasnt cold nor hot.
Something that did held me back a little r my cats, 130k+ miles engine, a full tank of fuel. Btw it took me like half a tank to do that sh|t in 3 attemps.

Quick 147 for LS6s ?

Were you in 5th gear when this happened? if you were in 4th then you hit a rev limiter.

For sh1ts I decided to see how high I could take it in 2nd gear and it seems that it's rev limiter is just passed 6900rpm. It's probably 6910rpm or something. My eclipse was like this but it's rev limiter was 6510rpm exactly. My speed according to the speedo was 68mph. I wish I had tuning software(I'm going to get it someday, just can't justify it yet) then I could read the programming and tell you exactly what the answers are.

I think your problem in the post that you linked is a fluke to you and that exact situation and is not normal. If I was in that situation that you had I would have used Jag heads and cams as they are better then the ford ones. The jag engine is rated at 240hp stock and I hope to change my heads someday to those and mildly port them.

 

[Mechanicboy]

oh and none of the pictures worked on the second page of your linked post.

 

[LS6_5SPD]

Were you in 5th gear when this happened? if you were in 4th then you hit a rev limiter.

For sh1ts I decided to see how high I could take it in 2nd gear and it seems that it's rev limiter is just passed 6900rpm. It's probably 6910rpm or something. My eclipse was like this but it's rev limiter was 6510rpm exactly. My speed according to the speedo was 68mph. I wish I had tuning software(I'm going to get it someday, just can't justify it yet) then I could read the programming and tell you exactly what the answers are.

I think your problem in the post that you linked is a fluke to you and that exact situation and is not normal. If I was in that situation that you had I would have used Jag heads and cams as they are better then the ford ones. The jag engine is rated at 240hp stock and I hope to change my heads someday to those and mildly port them.

oh and none of the pictures worked on the second page of your linked post.

Yeah I was in 5th, 4th wont make 140 due to the rpm speed ratio. Ive gone up to 7k rpms. No limiter. I usually shift at 6k, the engine wont push over 6k rpms so makes no sense.
I want an sct unit so bad !
Jag heads would fit??? really ?? Do u know of anyone who have done that ??? Sounds interesting, If they fit I would buy n build some Jag heads someday ! To just swap them when ready.
The non working images r cause there where in my t-mobile pictures album of an old t mobile acct.

 

[Mechanicboy]

Yeah I was in 5th, 4th wont make 140 due to the rpm speed ratio. Ive gone up to 7k rpms. No limiter. I usually shift at 6k, the engine wont push over 6k rpms so makes no sense.
I want an sct unit so bad !
Jag heads would fit??? really ?? Do u know of anyone who have done that ??? Sounds interesting, If they fit I would buy n build some Jag heads someday ! To just swap them when ready.
The non working images r cause there where in my t-mobile pictures album of an old t mobile acct.

That's weird, mine definitely hit a rev limiter, no doubt about it. Mine pulled good to 6.5k before the magnaflow. After then magnaflow it pulled much stronger above 3k RPM and just as strong from 6k till it hit the rev limiter.

The jag heads will fit but after doing some serious research they will require modding to work right. Mainly removing the VVT. I wasn't sure that the ECU controlled the VVT on the 00-02 jags because you can't see the actuator but it's hidden under the beauty cover that's on top of the valve cover. On the 03+ you can see the connector more advisably. By modding the VVT though you could use it as a way to manual adjust the cam timing. Note that it's only on the intake side.

 

[LS6_5SPD]

That's weird, mine definitely hit a rev limiter, no doubt about it. Mine pulled good to 6.5k before the magnaflow. After then magnaflow it pulled much stronger above 3k RPM and just as strong from 6k till it hit the rev limiter.

By modding the VVT though you could use it as a way to manual adjust the cam timing. Note that it's only on the intake side.

6.5k?? do we have different cams or something ? I can tell mine pushes from around 3k to almost 6k. If urs pushes all the way to 6.5k theres gotta b some sort of difference.