Drag radials

[Don Pfau]

+1 Thats what I was saying http://www.ebay.com/itm/Mickey-Thom...pt=Motors_Car_Truck_Parts_Accessories&vxp=mtr These are bias ply and are lighter and work better than Radial ply. I run my bias plys on the street regularly. PS I painted the raised white letters black.

 

[MarkVIIIS]

I got a code for my imrc's being stuck closed I'm wondering if I should put my cobra intake on and delete the imrc'S

 

[MarkVIIIS]

I also have codes for bank 1 running rich so I'm wondering if that's being caused by the imrc's being stuck closed

 

[KStromberg]

I got a code for my imrc's being stuck closed I'm wondering if I should put my cobra intake on and delete the imrc'S

Since you're boosted I would say no problem with deleting them. Just get it properly tuned for it. You'll get a good up close and personal look at them when you get the stock intake off. Mine never set a code but were nasty as hell, so more than likely yours are worse.

 

[MarkVIIIS]

Back when I put the s/c on it 2 years ago i took it off and cleaned them up so I guess it would be a good idea

 

[KStromberg]

How is that 3000 stall with the Vortech? Is there any chance you would do better with a higher stall? Just noticed that on your sig. My buddy had a Vortech 2-valve Vic with full bolt-ons and it was downright nasty with a 3800 stall. He ran 13.54 NA I'll bet you could pick up a couple more tenths with an even looser converter. Not that that is what this thread is about, but I ramble every now and then LOL.

 

[98LSC32V]

Hey Geno you still using the Edge Racing torque converters ?

 

[98LSC32V]

I think I will be getting the 255-50-16 ET Streets next just because I want to be able to run the car in street class and not comp rod.

 

[Don Pfau]

You will want a higher stall if you delete them. I have a 3,800 stall with the plates and I want more stall. Well I got more, I have a new 4,200 to install. Yes M/T street radial work great also just not as good by just a little. I don't know about those Toyo's. I've heard good thing also about the new Nitto's though.

 

[NoLimit95]

15's

http://huntsville.craigslist.org/pts/2944341048.html

 

[98LSC32V]

You will want a higher stall if you delete them. I have a 3,800 stall with the plates and I want more stall. Well I got more, I have a new 4,200 to install. Yes M/T street radial work great also just not as good by just a little. I don't know about those Toyo's. I've heard good thing also about the new Nitto's though.

Do you drive the car daily?

 

[MarkVIIIS]

I drive it slot In the summer and like half of spring and fall and yes I do wish I had a higher stall tc mine feels good right now but I've never driven with a higher one so I don't know

 

[MarkVIIIS]

I only got the 3000 stall cause that's wut scp recommended to me at the time my mark was my daily driver

 

[Don Pfau]

My 3,800 is great even on the street. I can't praise it enough for being the best of both worlds. I plan to hang onto it in case I want to go back

 

[MarkVIIIS]

I just ordered the MT street et's 26/10.50/16's which I hope is the equivalent to 255/50/16's cause these are going on my octastars, I also ordered the rear koni shocks which are backordered so I won't get them for a few weeks I ordered them from summit

 

[KStromberg]

I just ordered the MT street et's 26/10.50/16's which I hope is the equivalent to 255/50/16's cause these are going on my octastars, I also ordered the rear koni shocks which are backordered so I won't get them for a few weeks I ordered them from summit

Yup, the tire size is right, and the Konis from what I've heard are full of win. Mine are still in a pile of random suspension parts here but I got em.

On a side note, SCP is clueless. I run a 3800 stall daily driven in the non-wintery months without issue and I wouldn't go back to anything less. Remember, the centrifugal has boost lag and a high stall will diminish that greatly along with the fact that I am sure your torque curve has moved up quite a bit with the blower. Just a thought for the future. 3800+ In terms of performance, a 3800 stall will make a noticeable difference in your et's at the track over the mild converter you have now.

 

[mossbergman]

How does a big stall feel/drive different? I've never been around or rode in a car with one

 

[KStromberg]

How does a big stall feel/drive different? I've never been around or rode in a car with one

Pay attention to the tachometer in this video especially when getting on the throttle. Like 2:30 seconds in for example. This video also shows pretty good how well behaved a high stall is contrary to what some will tell you:
2002 Camaro Z28 with a Yank PT4000 torque converter - YouTube

You're operating at a higher rpm even under light throttle due to the slippage of a high stall. Imagine the spring on your tachometer being wore out.

A high stall will keep the car in its powerband. At WOT, my car shifts into second gear and "falls back" to about 5000 rpms. Compare that to a stock Mark VIII that falls back to about 4000rpms and has almost 1000 rpms more to pick up before it is in the best part of the powerband.

 

[KStromberg]

You'll appreciate this.



Stock Converter:

High Stall Converter:

 

[mossbergman]

What an awesome set of posts and drawings. That does clear things up quite a bit. Thanks kirk

 

[98LSC32V]

I'm looking into getting a 3800-4000 stall from Edge Racing.

 

[KStromberg]

I'm looking into getting a 3800-4000 stall from Edge Racing.

That would be kickass. I basically went with driller's recommendation of a 3600-3800 stall converter, and him being the NA king I figured I would listen. Especially for a track car, an aggressive stall is always a good choice with these cars especially. There has to be something in the equation to build better torque down low where the Mark8s lack a bit. In driller's case with the 5.3 swap and people like Don Pfau running blowers with meth injection, an even more aggressive stall would be beneficial. I think Driller is running a 4200 stall with his new setup and Don is considering upping his stall from the 3800 stall that he has now. For an NA Mark with bolt-ons, DEFINITELY a 3600+ stall is suitable and is my recommendation. That's one of the many reasons why I have got as far as I have with my setup. Every single ingredient is important.

Just for reference, my buddy had a Vic that ran 13.54 NA. Full bolt-ons, cammed, etc. After he was having some issues with the car, he was running a stock 11.25" for awhile. We went to the track and he was running low 14s with a car that typically ran 13.5s and 13.6s consistently with the 9.5" 3700 stall Edge converter.

 

[Right on the Mark]

You know how to turn a 3600 stall converter into a 4200 stall, just hit engine with 150 shot.

 

[KStromberg]

You know how to turn a 3600 stall converter into a 4200 stall, just hit engine with 150 shot.

Yup Spray or big boost will increase the stall.

 

[98LSC32V]

That's the one part I never truly understood about torque converters. How does the engine's torque output effect the stall speed?