i can't describe how badly i want to get a t76 ballbearing turbo for the car...it will be a while though the money i had for the t76 is now on the fiance's finger as of last wednesday

 

Speaking of HPS, what is the usual wait time after you order one of their intakes?

 

A higher stall torque converter really only has an effect below the stall speed, they have a lockup clutch that engages at mid rpm unless you've changed the programming or installed a non-lockup converter. Until lockup they will typically show greater torque as they are built with higher torque multiplication. I always locked the clutch at low rpm in 3rd on mine for dyno testing.

 

definitely... the outlets are sized well for stock heads but there's a little lip there you can whittle off if you have ported heads and gain a little flow for it. I've been really gentle with the grinder and sanding rolls so far. Just doing the most basic port match and some general smoothing of casting lines and such.

Figure on 6-8 weeks from order for the first full production run unless he's already ordered the first batch in which case the lead time will shorten. He has to have orders to fill though. Once the orders start rolling in I'm sure he'll shorten the hell out of that.

 

Thanks r3d.

 

man i got some bad luck...at long last i got my 5.4 in and my car mobile.....its been almost 2 years.

well just about 8 hours afterwards i was goin to my friends house to let him know i was gonna keep my 4 cyl. there for the night and take the stang home. well the road he lives on is not the best and what happend was that he has a pothole and manhole that goes upwards right by his house. well i must of hit it at the worst possible spot cause well lets just say i need a new oil pan.

oil went all over the road but i was able to kill the engine before anything bad happened. so now the car is down again....after only 8 hours.

i know its not info to help anyone out but id figure someone may get a laugh out of this. could of been a lot worse i guess.

 

snicker. sorry dude... that's luck like I have. had to giggle about that. At least oil pans are cheap.

 

Great to finally see some dyno #'s coming about on the HPS intakes.

Loved the video on the GTO get'en spanked!

Lets talk about bore notching! We all know the 5.4l has the extra .110+/- (assuming the use of stock piston highth) and the valves could sure use the notched area for un-shrouding.

Do you guys think it would be worth it? The material is there for the notching and I believe some serious N/A extra pony's could be had form a simple mod.

EXTRA! Update on my car.................HAHAHAHAHAHa! If I can get my head above water with my machinig buisness, I may see the light of day, but for now the car sits.

 

I get a mental picture of some guy that has had ******** sugery and getting kick there.

Sorry to here about the luck!!! Maybe you can look at it in a good way. Now the things you wated to do before, you can do now.

 

you mean like the old 396 bow tie blocks? Hmmmm... that would require cutting the chamber in the heads to match right? The same 1.7 and 1.8 valves would see less shrouding off the cylinder wall but will it actually improve flow or is it limited upstream still. Might just be worth a try. Gotta watch that the top ring doesn't walk into the notch. Don't know if that would end up requiring a custom piston with a lowered top ring. Neat idea... anyone got some expertise?

 

well the top ring from piston top is still a rough .100". So consider almost a .200" notch in the cylinder wall.

I believe the idea to work. Also the ? could be "how many of the great engine builders already employ the idea"? DSS does an eliptical champfer on the bores of Windsor SBF to match combustion chambers on some major brand heads. Roughly the same idea.

Bore shrouding is the problem for the Modulars, I beieve anything helps

 

Try it out.... if it works well enough we might just have a recipe that adds meat to the bone.

 

so if i understand correctly there is a 4v intake in the works similar to the hps from someone named bob? any guess on how long until it is out and how much it might cost? also r3d i found an intake of a 96 cobra llike mine that has been cut and widened to fit the 5.4 with b heads i wonder how it performs. if it did good i would just buy a built shortblock and transfer all my parts onto it. will my timing chains fit or will i need the ones off of a navi i know i will need the timing cover though. thanks for the help

 

i've heard trickflow is making an aftermarket 2v head that flows more than than even the best stageIII cnc'd PI heads and maintains better velocity at that flow rate than standard unported PI heads...and they are doing that outa the box

 

You can go to karkraft.com. They have some good options. Option one is adaptor plates to use the Cobra intake. Option two is to use the Navigator lower intake w/ one of their uppers. However, you would need a 90° elbow for the TB. This may prove to be too tall but one could also save space by bolting a universal 4-bore TB onto the intake and using a hat on top to plum it w/ the rest of the intake system. Also, it mentions that the lower intake needs to be modified but I'd imagine it's nothing serious or complicated. So, using this intake w/ stock parts and a carb, the Kar Kraft 5.4 4V made 375 hp and 375 ft-lb tq at the crank.

 

r3d, didn't u say that most stangs can use the 11" clutch? or just 99- up can use the 11"

 

Most can use an 11" clutch, you just need the correct flywheel to accept it. If you are trying to go that route, I have a couple spare 8-bolt flywheels for 11" clutches... send me a PM if you are interested.

 

All Modulars can do 11" since they all use 164 tooth flywheels. Just you need a flywheel w/ the 11" clutch pattern on it. The cars that can't are the old 302 which had 157 tooth flywheels, in which one would need a 164 tooth flywheel to run a 11" clutch.

 

i have a spec aluminum flywheel 8 bolt(fluidanza sp?) makes it. i just found a slamming deal on a spec stage iv and i can sell my brand new stage 1+ for cheap.

 

Alrighty.. Say I decide to pull a 180 and twin-turbo my 5.4 (I'm crazy like that .) What would be the proper size turbos to use for a low-boost app? (around 6psi.)

 

In a related question, what comp ratio will I end up with after installing a set of '04 Interceptor heads onto a stock 5.4?

 

Sweet . Found a clip of a Vic running an intercooled 9.5psi setup on a stock 4.6 engine.
http://videos.streetfire.net/video/t...psi_124046.htm
He says he was able to get 389rwhp/412rwtq (before he blew the engine.) Based on that, I think it would be fairly easy to duplicate his results with a low boost 5.4 app. And yeah, I know I'm turning into a PW. But that's not always a bad thing..Keeps the forum moving .

 

that's a remarkably expensive and difficult setup to pull off. the guys that are doing stuff like that are mostly fabbing their own pipes. A single or a blower would be probably a better plan. For the twins... IIRC the standard T03/04 hybrid is the standard for engines in this displacement range. Get turbo cams if you go turbo.

stock. IIRC 9:1 - 9.5:1 depending on the year of the bottom end.

 

On the subject of clutches, I swapped from the stock 11" clutch to a 10.5: unit. The options in 10.5's are plentiful and seem to be a bit cheaper than equivalent 11" setups. It's a simple swap. Just pick the right flywheel, pressure plate and friction disc for your application/budget and install (or more likely have installed). I'd replace the assorted bearings while you're in there.

 

The 4v intake from HPS last if at all on their list. The 3v market seems like a better option. Actually I'd like some discussion from you guys on this. My thought process is that 3v heads are being ported now to flow in (mild) 4v territory and they're returning absurd numbers sorta routinely. I figure with a 3v intake HPS can offer ~4v performance in the space of a 2v. What I'd be looking for would be a 3v intake oriented for 96-04 cars. 05+ cars could still use it but it would take a little modification and some extra kitting to make it an easy install.

The widened cobra intake is interesting. For a B-headed motor that would probably be the best option. Any 4v intake from HPS would almost certainly be for c heads and there are so damned many models of those that it makes it even less likely that they'll ever cast one. A 3v is financially a better option for them and would end up fitting more cars with tall decks in theory.


Thoughts?

 

3V would be best to go w/ first since 3V heads are amazing and are much more compact, compared to 4V heads. Plus, 4V heads have at least some intake choices whether it's Sulivan or Kar Kraft while there's nothing for a 3V, as of yet.

 

If anyone is looking for a 4V engine, Kar Kraft is selling the Australian Boss 290, complete (which includes the Aussie intake manifold).

 

Given the option I'd put a 3v 4.6 in my '98 GT before putting a 5.4 in it. Lock the cams run it on the OE computer. I wonder where the throttle body is on a 3V vs. the hood line of a SN95?

 

Thanks r3d. I agree that it will probably be more expensive in the long run. What really got the juices flowing was the availability of pre-made reverse headers for use with turbos (which happen to be relativley cheap.) I don't think I would do it unless I could find a good deal on a set of turbos though.

 

all the different C head models can use the same intake

the 4v heads requiring different intakes are as follows
B heads--all version of B heads can share intakes
C heads--all versions of C heads can share intakes(original C's, 03/04 cobras, FR500 heads etc)
R heads-- came on the 00 cobra R, and a later version is used on the GT500 and Ford GT which i'm 99% can also use the same intakes but i know for sure the GT500 and Ford GT intakes are interchangeable(well in this case by intake i mean the blower)

the only major difference in the C heads that would prevent a direct swap is the 03/04 cobra heads (and i think the fr500's too) have a more rectangular exhaust port but the same headers will bolt up between them just not as efficient, however intakes between them is a null subject--turbo 03/04 cobras very often use either a 99/01 cobra intake or machI intake