Nailing down the details for using a car intake on my 408

[1TUFFBRONCO]

Ok, I did alot of searching and reading last night to get the details of whats involved to use a car style intake on the trucks and I just want to confirm the things I found out aswell as hopefully get some questions answered that I did not see info on. Here's my thinking as it currently stands. I'm still about 90+ % committed to going forward with the 408 stroker build for my engine. The choice will have to come this week as I'm expecting the machine shop to be done with the block and be at the point of needing to order the pistons, etc. and do the finish honing of the cylinders accordingly. My Pro Topline heads are expected tomorrow. I have done alot of reading about the intake options for us Bronco owners. I am concerned abit with the info and confirming pictures I've seen of the Edelbrock EFI Truck intake not addressing the issue of the front two cylinders getting less airflow. As a result I spent hours literally reading everything I could find from previous discussions about switching to the mustang style intakes. What I saw was that people are generally either running a GT40 intake or the Performer peice. I have quite abit of info about the GT40's having a restrictive base especially for a bigger cube motor and also the fact that the passages are round which is not the best match for a rectangle port. Which explains why every aftermarket peice has rectangle runners. Its just a better match to the heads. Ok, so this leaves me with the Performer. In an interest of nocking dollars out of this engine build up in areas where I have fealt it would be acceptable, ie. not with regards to the bottom end. I have come across this new entry onto the intake market. The intake is made by a company called Professional Products and its called a Typhoon. This intake is a copy of the Edelbrock Performer RPM. Being a copy of the E'brock peice it appears to have addressed the front two cylinders getting less of a direct airflow path. From what I've read the difference between the Performer and the Perf. RPM efi peices is just in the upper having the runners taper up to a bigger cross section in the runner size and ofcourse the runners being 1 1/4" s shorter. So much like my head selection being one of diving into a bit of uncharted territory for Ford guys. I think I may try out this Typhoon E'brock Perf. RPM knock off as I could probably save another couple of hundred bucks and the Mass Air conversion is gonna be a killer it sounds like. So I need to save where I can. My understanding is that this Typhoon peice needs abit more gasket match type of cleam up with a dremel than others, but thats no biggie. It is also apparently the best selling intake from many sources. As a result I came across several dyno comparison tests using this new cheaper knock off peice and the results looked good. I'm thinking I would just run a 1" spacer or two to bring the runner length back up an call it good. Ok, on to my real questions (finally, sorry). From what I read to run the car intake I can or can not run the cables that I have for my factory truck peice???? I read that they are the same and they just curve back to the new throttle body location, but then in another post someone was giving the part number for the Accelerator cable, not sure why if they are the same from truck to car/Lightning. So that needs clarification for me. Are my current cables the same???? So I read that you need Accelerator Cable PN 9A758, Cable Brkt #9278, EGR Brkt #9H472, and finally Shield #9E766. Thats it well if thats it, I'm in. No more fuel distribution concerns for me. That still leaves several questions though. Like on the truck setup the EGR runs off the Passenger side exhaust manifold/header. How does it hook up with the Lightning/car intake and how many additional part numbers/parts do I need there???? I assume at this point when I'd order my headers I'd now need to get ones for the first gen. Lightnings. Is this right???? PCV valve still going to the pass. side valve cover???? What about the bracket that the coil and the parts that all these vacume lines plug into???? Does my existing truck TPS just transfer over and bolt right up???? What about the lines that normally run from the radiator to the Throttle Body, where do they now come from/attach to???? Any and all help is greatly appreaciated and needed, thanks much.

[Kemicalburns]

this is what you need to do. buy the edelbrock truck lower and just get the typhoon upper. they will match up pretty good. and give you the runner length you want. i just say them comparing the performer & typhoon and the gaskets match perfect to the performer intake while the typhoon was way off. Personally skimping on something like that wouldnt make much sense. Get the right part for the job the first time and it will save you time and money down the road.

late

[1TUFFBRONCO]

Could you elaborate on that. I am having a little bit of trouble understanding exactly what your saying.

When you say the Typhoon was way off when refering to gaskets what do you mean.

I'm not sure but I'm assuming for now that you must be refering to something I read last night with regards to one of the tests that has been done on this peice. In one of the stories on this peice they comented on how the reason it was being sold for so much less than other EFI intakes was because of less quality control in the manufacturing processes being used. They said in this story that what in meant was that just like its always a good idea to do gasket matching between the upper and lower intake peices and between the port dimensions from the intake to the heads. That when they held up for example the #1250 intake gaskets to this peice that it required more cleanup than others, but they pointed out that you generally always have to do some cleanup. In addition they fealt like it was no biggie due to the fact that cleaning up the ports on an aluminum peice just takes a matter of minutes. The pictures they showed didn't really have me to concerned as I've got a dremel and have done porting and cleanup work to aluminum intakes before. Its really fast. Aluminum is like butter with a dremel. They went on to comment that the distributors they spoke to that sell this peice as well as others told them this was their best seller do to the much lower cost (I think thats what they said, it was late).

Don't missunderstand I'm just trying to be clear on my end and understand what you mean.

Just to put it out there, now I haven't spent alot of time pricing the Edelbrock upper and lower, but this Typhoon peice can be had for like $280. and thats complete. The article I read seemed to say that for just a few minutes of extra cleanup work you could save a couple of hundred bucks and in their opinion especially after its performance, that was a good deal.

I'm not set on anything yet, just excited at another possibility to save some money and not lose any performance.

Regardless of the intake, what about the other details needed to put the car/Lightning intake on in place of the truck setup????

Thanks for the input, I do want all I can get.

[bbf150]

i'm wondering the same thing with my '95 f250 351w-what all do i need to convert the truck efi to a typhoon or gt40 intake?

[Conanski]

Originally Posted by 1TUFFBRONCO

I'm not set on anything yet, just excited at another possibility to save some money and not lose any performance.

Well in my opinion the Performer/Typhoon is WAY too small for a 408 stroker so you would be giving up a lot of potential, you should be looking at the Trickflow R series with the 90mm TB.
As for the Typhoon, I have one for my 5.8 and the machine work on it was much better than what was shown in the FordMuscle article, the TB opening was round and a full 70mm in diameter, and the flashing was removed form all runners openings. The exterior finish on the upper portion did have some defects but nothing structural, so I cleaned these up and had it powdercoated crinkle black.

I have not installed my 5.8 yes so the intake isn't in use either. I think it's possible to use the truck throtle cable but it will require a custom retainer plate, I plan on building something that combines the car and truck plates as I have the AOD TV cable to deal with as well.

EGR is internal on the Typhoon/Performer so as long as the heads in use have EGR passages the system will be functional with a mustang style EGR valve. The Dart heads I have are not EGR heads so I will be running an external tube if I install it at all. But this isn't a big deal IMO it just involves welding a fitting on the exhaust header and attaching an EGR tube, the one off the 300I6 or 2.3L is a good candidate for this since the TB is located off to the side and the tube runs across the back of the motor.