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View Full Version : 98' M3 twin screw issues.


countrybimm
12-14-2006, 11:49 AM
i am currently considering having a twin screw supercharger installed my my 98 m3..its a southern car with approx. 95,000km and im wondering how this is going to affect my reliability...i would be putting in a aftermarket clutch in with the car at the same time as the supercharger...not driven in winter, not a millionaire so cant afford to have it in the shop every week..if anyone is running a m3 with a twin screw plz email Neil_buehner@hotmail.com i would like to talk about the downsides of one.

thinair
12-14-2006, 12:00 PM
I do not have a twin screw installed. Although I've been following the development of the Eurosport kit since it was pre-production. I too am (hopefully) planning on picking up a non-intercooled kit. The kit itself if installed properly is reliable, there are guys in the states who have put over 40,000 miles on them already, plus auto-xing and tracking them.

Before installing them just have your motor looked over my a comptent mechanic, have a compression test performed. And don't forget safety first, don't cheap out on brakes and tires, you'll need a good set with +400hp under your right foot.

There is a member on the board who has a Eurosport twin screw installed, although I'm not his spokesperson so I'll let him reply himself.

paul christians
12-14-2006, 02:14 PM
If you do this you must tune it right,it is a sweet kit to good with and it looks almost stock whan you pop the hood open so not too many people will know,one thing get the head gasket too....if I had an s52 in my car that is what I would have too.....T.S.S.C....

thinair
12-14-2006, 03:00 PM
You don't need a headgasket for the current Twin Screw kits, and manufacturer's offer software/tuning included with the kit.

A headgasket will probably be needed to run a smaller pulley or a larger compressor though.

countrybimm
12-15-2006, 03:22 AM
im thinking about having the guys from kristenson racing developments install it, joe and praeben(sp) really seem to know there cars....im 23 and know a fair bit about cars, but not enough to do the install myself, i do know that a clutch is definately needed, any thoughts on which make to go with AA seems to be a good way to go from what i have read...as for brakes, im running stock brakes i dont think i will need a upgrade provided i dont drive like a idiot..is there going to be driveline issues at all?..i really dont want to put a upgraded rear end and driveshaft into it...if anyone knows the guy with twin screw right now can u give me his email or anything?...i make decent money, but constant tuning would kill me.......

notjoe
12-15-2006, 04:32 AM
im thinking about having the guys from kristenson racing developments install it, joe and praeben(sp) really seem to know there cars....im 23 and know a fair bit about cars, but not enough to do the install myself, i do know that a clutch is definately needed, any thoughts on which make to go with AA seems to be a good way to go from what i have read...as for brakes, im running stock brakes i dont think i will need a upgrade provided i dont drive like a idiot..is there going to be driveline issues at all?..i really dont want to put a upgraded rear end and driveshaft into it...if anyone knows the guy with twin screw right now can u give me his email or anything?...i make decent money, but constant tuning would kill me.......


I would bring the car to RMP. It wouldnt be the first time Rocco from RMP Motors has installed a twinscrew kit but i cant say who has it. What i can say is that the person who did have it popped their engine and threw a connecting rod through the side of the block leaving a fist sized whole and is now spending another 12k give or take to build a racing quality engine, which, Rocco from RMP will be building. From what i know the engine should be able to run 1000hp all day long but that is a different story.

notjoe
12-15-2006, 05:26 AM
Oh yes, the upgrading of things. forgot about that.

I would defintely do the suspension and go stiffer than stock. I would go with Ground Control. I have em and love em to death. Not only will you have to deal with the squatting of the rear but you'll also want to take corners a lot faster and there will be hardly any body roll.

M3 Brakes will be fine. No need to change those up with BBK, its a waste of money. I would take the 2-3k you're spending on the BBK set and put it into a rebuild of the engine. Get better connecting rods. The connecting rod bolts are what failed on that other guys TS M3 and ruined his engine. Might as well put a new MLS HG on the car while its apart.

How much PSI are you planning on running? The guy with the 99 m3 TS SC has 216k on the clock when it was boosted with 9PSI although he did expect a rebuild but he didnt expect replacing the block /engine.

He also drove it like he stole it. Redlining 5th gear for a minute or two. I believe that is when the rod bolt failed and gave way. Lots of smoke shows. Doing 150-160 everywhere he drove. and always looking for an off the line run against anyone. Had he driven it normally and pulled back at 240 or held 6k rpm in 5th instead of hitting the revlimiter i doubt he would have had the blown engine.

As for the kind of boost, i wouldnt say it feels boosty. It;s closer to driving around with a v8 engine in your m3. Power is instantly there when you touch the throttle. Lots of low end tq and it keeps pushing all the way from 500 rpm to 7k. That being said if you drive it like a normal car you'll stay out of the boost. It really only comes on when you give it to her otherwise it drives and handles like stock.

After reading your post again. I'll assume you'll be running the 6PSI kit in which case the clutch might hold the power if you've been kind to it during its life. Leave it in and see how long it lasts. IF/when it does go then you can always get a new clutch disk and/or flywheel.

A friend of mine recommended the Eurosport kit to the guy with the 99 m3 and he was happy with. While it didnt produce the 350-360@ the wheels HP he had expected he chalked it up to a worn engine. The kit also looks stock, like it belongs in there. Many of the parts are infact BMW parts with a few exceptions. If you do want it order the kit NOW and you might have it for spring/summer. expect a 4-6 month wait for it and lots of broken promises on delivery.

Here are the cliff notes
1) If you dont drive it like you stole it you'll be fine except for normal ware and tear.
2) Suspension shoudl be done. It will make a huge difference.
If you're going with the 9PSI then do #3
3) Pull the block and replace the connecting rods. You'll get new ARP rod bolts with them.
4) Order the Eurosport TS kit TODAY if y want it by spring time otherwise AA has a TS SC kit but its produces less power, by about 20-50hp to the wheels and is the same price but can be delivered sooner rather than later.


PS: The guy with the 99 TS M3 would have rather done an LS1 swap + Boost for under what it cost him for a TS + used engne + rebuild. Something to think about.

thinair
12-15-2006, 08:20 AM
I didn't say anything about a big brake kit :P
What I meant by upgrading the brakes was to run aggressive pads, high temp fluid. The stock M3 brakes with stock pads and fluid aren't all that great.

I honestly don't think you'll need to crack open your motor, you don't even have 100k on it yet. There are many people out there running twin screws who haven't even touched their motors internally.

As far as which brand. The AA kit and Eurosport kit are pretty similar, the Eurosport just has the OEM look to is when it's installed. Which kit are you planning on getting, the intercooled or non-intercooled version?

notjoe
12-15-2006, 11:34 AM
I didn't say anything about a big brake kit :P
What I meant by upgrading the brakes was to run aggressive pads, high temp fluid. The stock M3 brakes with stock pads and fluid aren't all that great.


My Bad, i dont know where the hell i got the BBK from


I honestly don't think you'll need to crack open your motor, you don't even have 100k on it yet. There are many people out there running twin screws who haven't even touched their motors internally.


Some have some have not. Granted my friend, lets call him, umm, pete, was redlining 5th but who wont do that every now and then? It's part of the fun!. If he is going with the 9psi kit and even remotely beats on the car like pete did then it is a worth while investment! ****ing connecting rod bolts and ARP doesnt make bolts for the stock BMW rods either :(

As far as which brand. The AA kit and Eurosport kit are pretty similar, the Eurosport just has the OEM look to is when it's installed. Which kit are you planning on getting, the intercooled or non-intercooled version?

^^^+1 For OEM LOOK!! If you do order from ES tell them Joe from Toronto sent you and they might be a little quicket in getting the product out to you! :)

propr'one
12-15-2006, 11:43 AM
^^hey joe. you forgot to tell everyone that the guy with the kit's car = fun as shit:D

notjoe
12-15-2006, 11:50 AM
^^hey joe. you forgot to tell everyone that the guy with the kit's car = fun as shit:D


You'll have to refresh my memory, i'm lost bra ;)

propr'one
12-15-2006, 11:53 AM
the guy. who has the kit. on his car? (the person whose name we're not mentioning)

...his car is fun.

notjoe
12-15-2006, 12:06 PM
Who, pete? What kit you taking about jigga man? I believe he got the track/school kit from GC

paul christians
12-15-2006, 02:34 PM
You'll have to refresh my memory, i'm lost bra ;)
:confused: get a map then............hehehehe....NOTJOE you are a joker man..........*santa* *rockout*

notjoe
12-15-2006, 02:40 PM
:confused: get a map then............hehehehe....NOTJOE you are a joker man..........*santa* *rockout*


I'm glad my sense of humor works on something with a heartbeat, can i interest you a romantic dinner paul? :eek:

paul christians
12-15-2006, 03:26 PM
^^^^OK,but not romantic part,I know some you porn people go both ways but that is not me all...........heheheheheheeeheeee....

countrybimm
12-15-2006, 09:39 PM
thx everyone for there imput...but after hearing all you guys debate about boost pressure, braking, suspension...im not sure that its the right thing for me to do....i make 60,000 a year and live cheap, but i cant afford to be putting rods and head gaskets into my car every time i drop the hammer.....i think im just gunna be happy with the power that im making, a twin screw sounds to me like more hassle then fun.....i think for now, im gunna have to go the show instead of go route and go for the widebody kit and rims....again thx everyone for your input you helped me make the right choice!!!!!!!!

Axxe
12-15-2006, 09:49 PM
Well, I don't have any issues screwing twins.

countrybimm
12-15-2006, 11:28 PM
i dont mind either as long as their not fat or ugly....

thinair
12-16-2006, 01:47 AM
but i cant afford to be putting rods and head gaskets into my car every time i drop the
It's not that bad at all. They're totally reliable, just make sure your compression is in check before you get any forced induction system installed.

RMPMOTORS
12-18-2006, 10:45 PM
Compression was not the issue on Petes car, a rod bolt let go and the rod went though the block.

Most people don't drive like Pete!

Rocco

mellobudd
12-18-2006, 11:18 PM
i like pete, if i had the moolas i'd be like pete..

jeffrie
12-21-2006, 02:38 AM
Most people don't drive like Pete!



Find it hard to beleive that anyone with FI would not drive like a retard on cocaine on every & any occasion (as I assume Pete does).

Hamann330ci
12-22-2006, 02:01 PM
Well its hard not to hit it when you have a system.