LT1-S for 700 RWHP w/Centri?
07-12-2018, 03:38 PM
#1
Burning Brakes
Thread Starter
LT1-S for 700 RWHP w/Centri?
Is anyone running a Monster LT1-S twin disk behind a centri blower in the 700 rwhp range? If so, how is it holding up?
I know it's right at the limit for the "S" but I feel like a centri blower is a little easier on the torque delivery than PD, turbo, or nitrous, and I don't plan on spending much time at the dragstrip as this is a street car. I also looked at the LT1-SC but the (excellent!) guys at Monster felt there might be too much chatter in a torque tube car with the SC and instead recommended the LT1-S triple disk. A fine clutch but at nearly double the price due to the custom hydraulics etc. needed to make it work.
I'd be interested in hearing any other suggestions as well, hoping to keep in the $1000 - $1400 range including a steel flywheel, I just feel it's a bit safer than the stock cast iron unit.
Thanks!
I know it's right at the limit for the "S" but I feel like a centri blower is a little easier on the torque delivery than PD, turbo, or nitrous, and I don't plan on spending much time at the dragstrip as this is a street car. I also looked at the LT1-SC but the (excellent!) guys at Monster felt there might be too much chatter in a torque tube car with the SC and instead recommended the LT1-S triple disk. A fine clutch but at nearly double the price due to the custom hydraulics etc. needed to make it work.
I'd be interested in hearing any other suggestions as well, hoping to keep in the $1000 - $1400 range including a steel flywheel, I just feel it's a bit safer than the stock cast iron unit.
Thanks!
Last edited by Pete2k_Z28; 07-12-2018 at 03:41 PM.
07-13-2018, 12:52 PM
#2
Instructor
Is anyone running a Monster LT1-S twin disk behind a centri blower in the 700 rwhp range? If so, how is it holding up?
I know it's right at the limit for the "S" but I feel like a centri blower is a little easier on the torque delivery than PD, turbo, or nitrous, and I don't plan on spending much time at the dragstrip as this is a street car. I also looked at the LT1-SC but the (excellent!) guys at Monster felt there might be too much chatter in a torque tube car with the SC and instead recommended the LT1-S triple disk. A fine clutch but at nearly double the price due to the custom hydraulics etc. needed to make it work.
I'd be interested in hearing any other suggestions as well, hoping to keep in the $1000 - $1400 range including a steel flywheel, I just feel it's a bit safer than the stock cast iron unit.
Thanks!
I know it's right at the limit for the "S" but I feel like a centri blower is a little easier on the torque delivery than PD, turbo, or nitrous, and I don't plan on spending much time at the dragstrip as this is a street car. I also looked at the LT1-SC but the (excellent!) guys at Monster felt there might be too much chatter in a torque tube car with the SC and instead recommended the LT1-S triple disk. A fine clutch but at nearly double the price due to the custom hydraulics etc. needed to make it work.
I'd be interested in hearing any other suggestions as well, hoping to keep in the $1000 - $1400 range including a steel flywheel, I just feel it's a bit safer than the stock cast iron unit.
Thanks!
Last edited by Withnasty; 07-13-2018 at 12:53 PM.
07-13-2018, 01:58 PM
#3
Race Director
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St. Jude Donor '15
Haven't had mine dyno'd but that's the clutch I'm running and it's been awesome, no issues at all.
13-14psi or so boost, 3.25" pulley on ECS kit, cam, E85
163mph in 1/2 mile starting totally stopped, so whatever that ballparks out to power wise
Disclaimer: I don't do hard launches because I'm still on the '05 rear end, so I can't really say how it would hold up to that. It's done fine for long pulls though.
I tried a prototype triple and it drove just as well so I can see why they push it.. prototype had some rattling which was supposedly resolved with a small change (I haven't tried it personally)
13-14psi or so boost, 3.25" pulley on ECS kit, cam, E85
163mph in 1/2 mile starting totally stopped, so whatever that ballparks out to power wise
Disclaimer: I don't do hard launches because I'm still on the '05 rear end, so I can't really say how it would hold up to that. It's done fine for long pulls though.
I tried a prototype triple and it drove just as well so I can see why they push it.. prototype had some rattling which was supposedly resolved with a small change (I haven't tried it personally)
Last edited by schpenxel; 07-13-2018 at 01:59 PM.
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Pete2k_Z28 (07-13-2018)
07-13-2018, 05:15 PM
#6
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St. Jude Donor '15
. Should run mid 130's MPH wise in the 1/4 I'd guess. It's usually about 30mph difference between the two for a rough estimate.I'd guess high 600 or low 700 maybe on a cold day? Not really sure. My driving sucks so might could have done a little better with a few more runs but I was afraid I was going to blow something up
I don't even know anymore on the miles, it's in the 10-20K range I'd guess? Car has 200K on it, 50K since supercharger went on, clutch was sometime after that but not sure how far. It's all running together at this point
07-13-2018, 05:40 PM
#7
Burning Brakes
Thread Starter
Thanks, so no chatter? I think Monster may be being a little overly cautious, and I don't blame them. No vendor wants to deal with a knucklehead blabbering on the forum that something is a POS when a product is working normally.
07-13-2018, 05:43 PM
#8
Burning Brakes
Thread Starter
1/2 mile, not 1/4 . Should run mid 130's MPH wise in the 1/4 I'd guess. It's usually about 30mph difference between the two for a rough estimate.
I'd guess high 600 or low 700 maybe on a cold day? Not really sure. My driving sucks so might could have done a little better with a few more runs but I was afraid I was going to blow something up
I don't even know anymore on the miles, it's in the 10-20K range I'd guess? Car has 200K on it, 50K since supercharger went on, clutch was sometime after that but not sure how far. It's all running together at this point
. Should run mid 130's MPH wise in the 1/4 I'd guess. It's usually about 30mph difference between the two for a rough estimate.I'd guess high 600 or low 700 maybe on a cold day? Not really sure. My driving sucks so might could have done a little better with a few more runs but I was afraid I was going to blow something up
I don't even know anymore on the miles, it's in the 10-20K range I'd guess? Car has 200K on it, 50K since supercharger went on, clutch was sometime after that but not sure how far. It's all running together at this point
1/2 mile, yes, that makes much more sense 
Either way, it sounds like it's holding up well, thanks! Wow, 200k and holding up to a blower, I love these motors!I'd love to hear more feedback on the LT1-SC.... that's really where my heart is set but I don't want to deal with a lot of chatter or an on/off switch type clutch for a street car (I remember driving a friends IV Gen F-body years ago with the Cartek clutch... horrible street manners!). The price is right though, especially with the Vengeance $100 off sale and free shipping.
Last edited by Pete2k_Z28; 07-13-2018 at 05:46 PM.
07-14-2018, 08:12 PM
#9
My lt1-sc doesnt have much chatter at all. In netural with the clutch out it makes a little bit of noise from the tunnel. It does grab quickly when you let it out but its not as horrible as the rps clutches ive tried. Im making a bit over 600 rwhp now but ill have the car at 850+ within a year. I plan on keepig the clutch and seeing how it holds nearing 1000rwhp.
i also made sure to get the iron fly wheel for better street manners.
i also made sure to get the iron fly wheel for better street manners.
Last edited by ysb02; 07-14-2018 at 08:13 PM.
07-17-2018, 09:41 AM
#11
Le Mans Master
I run the LT1-S twin disc. I make 650whp, NA and over 700wtq on nitrous. I bought my clutch used and it's been holding up great. Have a few trips at the 1/4mi on it and lots of highway pulls. Haven't launched it on nitrous yet, though. It did have some chatter for a while after I installed it. Haven't noticed very much lately, which is a good thing, I hope. LOL.
07-25-2018, 10:28 PM
#12
Burning Brakes
Thread Starter
Upon further review (and a few calls to Monster) I went with the S triple, it will arrive Friday but will probably be at least a month before it’s in. I’ll make sure to update the thread with the results! Considering the amount of work involved to replace a clutch on one of these cars it just didn’t make sense to try and save a few bucks, especially since the triple comes with a slave cylinder, making the price difference between the two fairly negligible if you add a slave to the SC twin.
01-05-2019, 12:38 AM
#13
Upon further review (and a few calls to Monster) I went with the S triple, it will arrive Friday but will probably be at least a month before it’s in. I’ll make sure to update the thread with the results! Considering the amount of work involved to replace a clutch on one of these cars it just didn’t make sense to try and save a few bucks, especially since the triple comes with a slave cylinder, making the price difference between the two fairly negligible if you add a slave to the SC twin.
01-05-2019, 12:42 AM
#14
Burning Brakes
Thread Starter
I had some delays on the build but the car is at the tuner as we speak! I hope to have it back Monday. From the 30 seconds or so of driving I have on it pulling it out of the garage and loading it onto the flatbed, it drives as good or better than stock and is about as light, maybe a little lighter actually.
01-06-2019, 09:03 PM
#17
01-06-2019, 09:04 PM
#18
Burning Brakes
Thread Starter
01-06-2019, 09:24 PM
#19
Dangit! LOL. I am impatient and am trying to make a decision this week... I'll obsess over this decision until I pull the trigger lol. I'm torn between going with mantic again or trying the LT1 S triple. My mantic 9000+ Twin has served me well for 25K miles and at least 20 to 30 track days. I was about to just buy another one, but it seems the LT1 S triple may have a lighter pedal and zero chatter/judder in first. The mantic was almost the same feel as stock except the pedal is a good deal stiffer and first can judder a bit if you don't slip it just right in 1st. Not a huge deal, rarely happens.
I was wondering if the organic material on the LT1 S triple would not last as long as the mantic did, or if the fact that there are 3 discs will distribute the heat enough that they will take the abuse of 20 minute track sessions.
I know the Mantic users will yell at me for not just going with Mantic again, but I'm always up for trying something new
I was wondering if the organic material on the LT1 S triple would not last as long as the mantic did, or if the fact that there are 3 discs will distribute the heat enough that they will take the abuse of 20 minute track sessions.
I know the Mantic users will yell at me for not just going with Mantic again, but I'm always up for trying something new
01-07-2019, 12:29 PM
#20
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St. Jude Donor '15
LT1-S triple felt like stock, never had any issues with it stuttering when you were starting from a stop.
I can't comment on which would last longer, etc. More discs on the triple but organic vs cerametallic, so I'm not sure. I have a feeling you'll be happy with either.
I can't comment on which would last longer, etc. More discs on the triple but organic vs cerametallic, so I'm not sure. I have a feeling you'll be happy with either.