[ZephyrZ7]

in the 11s.

Here's a rundown of the setup, lots of stock parts.

http://www.youtube.com/watch?v=bViGxpWUQaY

 

[PSIG]

Nice! On your way with an almost stock 5.0L HO and 11's. Gotta love it. How are you controlling timing? I bet you're just hitting 3rd gear at the traps, and you need much lower - or a bit higher - gears to trap at the top of 3rd or 2nd gear. Which way are you going to go?

David

 

[Hottarod]

Dave buddy, did ya miss the twin turbo part of that set up?

Just yankin your chain, LOL.

 

[ZephyrZ7]

I have an MSD6BTM pulling timing under boost. I don't plan on changing out the 3.08 gears because its a street car and that is part of what keeps it so streetable. That and the stock cam!

 

[dacofaII]

Runnin good, but who was that clown in the blue shirt?
Personally I still like the BBFs, [email protected]

 

[alloval351]

sweet man, looked like she left straight n quick,Sounded like the R's dipped a little after u shifted into second though otherwise awesome man

 

[Greatbison]

really i can do with this car.

 

[ZephyrZ7]

I'd better update this with the newest time....

1154DR10-28-11.wmv - YouTube

These are through the stock E7TE heads the new heads just arrived yesterday so hopefully the car will run much better after I fix that bottleneck.

 

[PSIG]

Nice. Yeah, anybody's crappy aftermarket heads will put a stock block turbo 5.0 fox into the 10s. Have you run a plot on your compressor map to verify you can push the greater volume at the same pressure at reasonable shaft RPMS?

David

 

[ZephyrZ7]

There are tons of twin T3 sbfs out there running 10s and better,this is one of those cases where I just let others prove things for me, if there's a problem I could always upgrade.

New heads are 185 CNC twisted wedges.

 

[PSIG]

OK I just checked on your combo and ran the numbers. Your .60 AR compressors should be fine up to ~15 psig with TW 185s, at which point you'll have had to face other issues from excessive power anyway.

David

 

[ZephyrZ7]

Only running 10 psig right now, wondering if I'll lose some when I uncork the restriction in the airflow path (re:heads,valves)?

 

[PSIG]

Yes, but your wastegates will compensate to run the same manifold pressure. It's the belt-drive superchargers that see the pressure loss without a pulley change, yet better power at the lower boost level. So, I would suggest dropping to 6-7 psig so you can re-tune to the new flow. You'll probably get to push timing up a few degrees as well with those heads, but tuning will tell. Check your plugs religiously on the return road if you have a pullout spot until you get dialed-in. Are you using more octane (fuel blend) at the track and 10 pounds or pump gas?

David

 

[Loco4Fomoco]

That 11.54 is perfect for a street car. If you run faster than 11.50 at the track you'll have to put a cage in it. Sweet car!

 

[Hottarod]

Thought I saw a significant amount of smoke up there?

 

[ZephyrZ7]

PSIG = yes I'm running high octane fuel

FATNFAST= already got a cage in it now

Hottarod= yes it has developed an oil leak at the rear main, I will be taking care of that when I add the new heads.

 

[PSIG]

Don't forget it's easy to get gasket and seal leaks with boost and the higher cylinder pressure if your breather system can't get the excess crankcase pressure out. A remote oil vapor separator (catch can) is the word of the day if you don't already have one, along with a positive-sealing PCV valve to prevent boost pressure from blowing into the crankcase. SuperCoupe PCV valves (Fram FV315) are an inexpensive example.
:tup:
David

 

[ZephyrZ7]

Already got a turbo t-bird PCV valve on it now and am way ahead of you on upgrading the system via catch can etc.

 

[trashline]

Already got a turbo t-bird PCV valve on it now and am way ahead of you on upgrading the system via catch can etc.

we turbo thunderbird guys would install a one way check valve in the pcv line from a chrysler van brake booster when running more than factory boost. the pcv's would just leak almost regardless.

I so want to do this with my 65.

 

[ZephyrZ7]

I actually have done away with the PCV valve and just ran vents on both valve covers after having to switch to tall covers in order to clear the 1.7:1 rockers (no girdles) I have a few friends that have the same setup and this has worked well for them so I adapted it. Still working the bugs out of the new combo.