This guy must be on crack...

[Wings Dirty]

http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&category=33741&item=2439511327

1500 Bucks Starting bid for a 1st gen M90?

USED

:O

edit: It looks like it came off a 93. That a 2nd gen?

[Killer SC]

yeah too much crack for him

[dirtybird91]

LOL! This guy is past being on crack! A Magnum Powers unit can be had for $1,100.00:D :D

This guy fell in a crack!!!:eek:

Dirtybird91

[motocross_masta]

hahhaa!!! Thats great! What do wanna bet sum moron buys it?! Just a curious question by the way... will a supercharger off a 95 give my 90 an extra kick or not? Because the 95's are putting out more hp and tq stock then the 90's... the sc or just overall engine/drivetrain difference?

[Mr1der]

what an idiot, I would have taken the plenum off before selling it that cheap:rolleyes: ...

[Deep6]

Yes, If you bolt a 94-95 supercharger to your 90 SC you will see a 20hp power increase. Ford did other things too from the 89-93 cars to the 94-95 cars too. Just off the top of my head really quick, 30# injectors were upgraded to 36# ones. There is a windage tray in the 94-95 bottom end. And the oil pump was a 7 tooth higher volume design. Of course the other big news was the head gaskets were now OEM supplied from fel-pro and were much less prone to blow.

However, you do have to use the 94-95 inlet plenum since the 94-95 blower inlet was rectangular rather than the oval of the early style 89-93.

[motocross_masta]

20 horses eh? Will it just give me more boost or??? The new hg's... if i put aftermarket hg's after mine blow (anytime now i'm sure) will they last longer then the stock ones had?

[Deep6]

The later style blowers were so efficient at producing boost that they were spun 3% less than the 89-93 blowers, yet were still able to produce the "factory" numbers of 12psi boost. It is due to the increase in efficiency of air flow pumping that allowed the 20hp increase. As far as HG options are concerned? Well go with the Fel-Pro's. That is what the 94-95 cars had stock anyway and most of the time they don't blow. Make sure to open up your exhaust a little bit if you want to overdrive your 94-95 blower. Remember that the 5% and 10% pulley combos were based on the 89-93 blowers. So bolting a 5% on a 94-95 blower is like putting a 8% on it and a 10% is really spining it 13% faster.

I think when your HG blow (and they will) you can hash out your options then, you could try to have the heads milled and the block decked to fit a Copper Head gasket, but sometimes those leak. I think also the 4.2L head gaskets will work and they are stronger. ALso reassemble it with ARP head studs as they are more likely to maintain adequate torque on the cylinder heads rather than the stock head bolts which are known to stretch.

[motocross_masta]

I already have an exhaust... its an aftermarket stainless steel exhaust (already on the car when i bought it and thats all he said) so its prolly a Borla or MN12 Performance... its got big pipes... headers, and a y-pipe, that kinda thing, i'm going to climb under there next weekend (don't see the car til then) and see. Otherwise how much do u think a 95-96 supercharger for my car and a od pulley... it'll be cool.
{edit} and when my hgs go i'm gonna get the heads port and polished and everything i can while its all out of the car :cool:

[Deep6]

...push a 10% unless I knew for sure that I was running 2.5" down tubes into high flow cats. I'd also want to make sure I was running headers or have heavily ported stock manifolds to push all that boost through.

a 94-95 Supercharger in good shape will probably run maybe $800? Maybe I'm guesstimating wrong but since a full magnaport runs like $1100, that would be a reasonable price for a untouched M90.

[007_SuperCoupe]

I've got the '95 blower on my '89. So I've done the conversion and know the ins and outs of it. I'm not 100% sure about the 20 hp increase. I did a number of other things at the same time I did the blower. Seat of the pants feel, there was an improvement. With the new blower, roller rockers, and a bunch of maintenance stuff, I ran a 15.6 (auto) at the track. That is about stock time for the '94-'95 sc's. And that was with the stock '95 blower pulley. I have changed to my '89 pulley and ran a 15.2...very traction limited. And I see in the neighborhood of 14.5lbs of boost. Then again, I'm still running stock exhaust.

I got my supercharger from a local salvage yard. They had to ship it in from Arkansas. It was $500 with no core. You may be able to work something out like that. It came with the inlet plenum, top and pulley. Pretty much a bolt on with the exception of the stock bypass valve vacuum line. It is "self contained" so to speak on the newer superchargers. I simply had to block off the old vacuum line. Everything else was a go. It is definately a mod worth the $$ if you plan on a magnaport in the future. The MPII will run you 1100 plus the inlet plenum. You can get more from the magnaport on a '94-95 supercharger. With a rebuild, plenum and port, you're looking at about the same price, but better efficiency. Otherwise, an MPII will be better if you're not in it for all out performance.

But this is just to keep in mind too. My HG are failing now. With that little bit more boost without opening up the exhaust, I've got to pull everything back off again. I'm kicking myself for not doing it the first time. I had it down to the heads, but decided against it. A year + later and I'm pulling them anyway. You can chew on that for a while...

[Ken Seegers]

Do not think because you have an opern exhaust system that will stop your car from blowing head gaskets.

I blew mine with headers, 2.5" dual exhaust, raised top, 1st gen m90 with stock pulley. I was only producing 10 lbs of boost. I blew mine with 92k on the motor. I had the exhaust on the car since about 55k.

I also knew a guy who blew his only about 1k after he installed a S-model blower on his car. He did not have headers, but his exhaust was the old MN12performance system.


The reason for blowing head gaskets to due to denonation and the poor design of our heads. Our exhaust ports are very poorly designed...just ask around to those who had their heads done.
Later
Ken

[007_SuperCoupe]

I'll agree with Ken on this. Heat is the #1 reason our HG fail. The excessive heat comes from poor exhaust design and poor head design. On a budget, the exhaust is attainable. You have to spend serious $$ to fix the exhaust ports/runners in the heads.

From the sounds of it, Ken, you blew the original HGs at 92k. Just hoping to clarify that. I think that if you are going to go to the effort of changing the sc to a late model style or a ported early style it would be a good idea to go ahead and change the HGs if they are the originals. (Or in my case, original replacements from Ford before they went to the Fel-Pro in '94) Mine have lasted around 70k. But this summer my sc saw very hot under hood temps too. I think that was the cause of my HG failure. Not the exhaust. But exhaust work will bring underhood temps down a little. And every little bit helps.


Is it just me or did we get way off the original post? LOL

[motocross_masta]

Get off topic? Yea we did... sorry, that was my fault. I didn't mean to Hijack the thread so sorry to anybody who was looking for more replies.... :o

[TBone95]

"rather than the stock head bolts which are known to stretch."

Theyre not known to stretch, theyre designed to stretch when installed. In an ideal case, this provides some strain hardening and makes them stronger. However, it also reduces the diameter therefore increasing the true stress on the bolt. And Id never be very confident using a bolt that has already been plastically deformed in a high fatigue use.

And of course once a material begins to plastically deform (permanent stretching), it usually isnt too far from breaking. So when youre stretching it just bolting it down without any cylinder pressure on it...

-Travis

[JAFO]

Imagine that:

Starting bid: US $1,500.00

Ended: Oct-28-03 14:37:38 PST

History: 0 bids


Guess my car won't be turned into an LX after all! :D