Aussie_LS2

Hey guys so I'm from Australia and I've just dropped an LS1 into an 1986 Holden. Car weighs 3150 with me in it. I've done a bit of searching and I've narrowed it down to the LT1-S and the RXT clutch. It's 90% street driven and will hit the track a few times on slicks. Power wise I'm at 350rwhp for the first 3000 miles and then I'll be fitting a blower/cam package. I am an aggressive street driver...This car is built for fun and will put on a few smoke shows on the street but I do live in the city and getting out of here can be a pita on the left leg.

Billy M

Thank you for your interest in McLeod Racing.

I think the RXT would be a great choice for your project.

The part number you will need is 6405507M.

This will come complete with a steel flywheel.

If you have any further questions please feel free to contact me at
billym@mcleodracing.com

Kind Regards,

stevieturbo

As your in Oz...Xtreme ?

I'd have thought the RST would be more comparable to the LT1-S in that they're more organic based discs ?

What sort of power are you hoping to get to with the blower ?

SNLPerformance

iTrader: (15)

The LT1-S would be perfect. It's rated for 700WHP/TQ, and it wont kill your leg. Give us a shout if you have any questions.

necrocannibal

iTrader: (5)

My vote is Monster. I have the LT1-R which is rated at 1200 and it drives like a dream.

Mikey 97Z M6

iTrader: (37)

The LT1-S is a great clutch. I've ran many clutches over the years and this is hands down the best street/track friendly clutch I've owned or driven.

SNLPerformance

iTrader: (15)

Thanks for the votes!!

whatsa347

iTrader: (6)

Are ya'll using stock master cylinders with your Monster LT1 setups?

milkey57

iTrader: (7)

I'm with the lt1 guys here best twin I have had or driven. Yes stock MC here too

Aussie_LS2

500rwhp is the number maybe less if it gets too lively.

Xtreme clutches are ok but the clutches available in the U.S are much better value imo. Seems like either are good and they're pretty similarly priced which is why I asked. Thanks Billy M for your help and SNLperformance. I can't find a bad word about either of these.

necrocannibal

iTrader: (5)

Stock master and stock slave. Best high horsepower clutch I've ever driven.

stevieturbo

For that sort of power, plenty of single plate clutches would easily cope.

A twin would be serious overkill.

SNLPerformance

iTrader: (15)

LT1-XX clutches can use a stock, or any of the aftermarket masters.

SNLPerformance

iTrader: (15)

At 500WHP the LT1-S sounds like too much clutch. However the friction material that we use in the LT1-S is not aggressive, so it won't kill drive-ability, and it will last a lot longer then a single disc.

MuhThugga

I have an LT1-S in my 500 RWHP GTO. I picked it over the McLeod because it was cheaper, included a new flywheel with the price, and I liked the idea of having a factory disc and pressure plate. The clutch itself drives -well- like a factory clutch. I don't have any experience with the RXT, but those were my reasons for selecting the Monster over the McLeod.

As a plus, with the way the LT1 clutch is designed, it installs like a single disc.

SLOW SEDAN

iTrader: (13)

If you have any intention of following through with adding a blower I wouldn't be looking at the LT1-S to handle it. While the LT1-S is rated for 700whp/tq it cant handle a 5.3L on wastegate with a little chinese turbo, so it wasn't getting hit nearly as hard as a blower would off the line. I highly doubt it was even making 600wtq and it absolutely destroyed itself as shown below.

I've added LSA blowers to LS3's making more power then what this LT1-S saw and the McLeod handled it without issue. In fact the RXT has held up to multiple 9 sec passes at over 155MPH in a 4k lb car without issue. I know the vender says the RXT and LT1-S should not be compared but most every consumer compares on price not clutch material.

SNLPerformance

iTrader: (15)

Clutch dust and hot spotting is normal on full faced organic clutches, that said, that S does look over-powered. I've got 5th Gen Camaro guys making north of 800 rwhp with S twin discs and no issues, those cars weigh quite a bit as I'm sure you're aware.

That said, any clutch can be over-powered. I wouldn't compare a LT1-S twin disc to a RXT, that is more compared to the SC that we rate at 1000 rwhp. If you want more we have a LT1-R that's rated for 1200 and it's already gone low 8's.

For the newer model guys we have LT1-S triples that have held 1100 rwhp and have already gone numerous 1.3x 60's, the SC triples are rated to 1500 rwhp and the R triples are rated to 1800 rwhp... people should always compare apples to apples - comparing a ceramic friction twin to an organic definitely isn't that as you stated. The pricing isn't close, if you price a RXT with a quality billet steel flywheel it's closer/more than the SC....

Detoxx03

iTrader: (14)

Neither get a Mantic 9000

Rawr256

Put in a RXT in my boosted TA and couldn't be happier. This is after my Monster fused itself to the pressure plate and wouldn't disengage. Think i threw some pics in my turbo build of it when I pulled it apart. Taking it apart found a broken spring on the clutch that was causing a rattling sound that started after about 3k miles with the clutch that when I asked about it was told it was a normal sound.

Price I paid for my RXT I would have had to spend $500 or so last I looked to get an equiv Monster. This was prior to the LT1 setups they offer now and I was already hesitant about with my prior failure. Lot of coin to drop to have something possibly fail.

I have approx 15k miles on my RXT on stock master and have no issues at all when turning up the boost to the 750whp range. Went with it because friends did in the past on their cars and never had complaints up to the 900whp range. Pedal feels just like stock. Wife doesn't complain like she did when driving the Monster with Tick master.

necrocannibal

iTrader: (5)

900 rwhp on my LT1-R now for about a year or so and has performed flawlessly. Replaced a Mcleod that was slipping at 700.