Stealth EGR blockoff and overall heat reduction.

[redty]

Well I try to contribute from time to time, so with the new web page coming up, here is one that you engine builders may want to think about.

The simple modifications can make significant differences.
HEAT, worst enemy of turbo charged vehicles. So what can you do to make an inexpensive modification of the Syclone/Typhoon intake?

Glad you asked that question, this modification is a 3 out of 5 skill level, and is one that you take advantage of when you have the intake off the motor.

Problem 1: EGR heat on the intake.

Problem 2: Oil splash/heat on the bottom of the intake.

Solution 1: Make an EGR blockoff that is at the base of the intake, not at the valve itself which allows the heat to soak the manifold.

Solution 2: Make a plate that stops oil splash from hitting the bottom side of the intake etc.

Materials that you need: Small section of plate metal, steel or aluminum. Header gasket material for the EGR block off at the intake side of the head.

The EGR block off is easy enough, placed the intake gaskets on the manifold, then cut a small piece of header gasket material to fit in the EGR section of the intake gasket opening, secured with hi-temp silicone gasket sealant.

Intake heat plate is 11-1/2 inches by 5-1/4 inches, I rounded the corners, used the embossed areas of the lower intake to secure the plate by drilling some small holes and using #8 x 1/2 inch metal screws to secure it with washers, locknuts and additional hi-temp silicone to seal the plate and screws to reduce possible issues of loosening and associated engine damage.

So here is the finished product ready to install, took a couple of hours and some tin snips. But no major dollars, and one trip to Home Depot for the metal, gasket material can be bought at the local auto store, AutoZone sold me a small sheet of Mr. Gasket header gasket material for $3.00.

So if you have the intake off, this doesn't take long, or a lot of money, and the payoffs are in that hidden performance of lower heat against the intake.

Disclaimer: EGR blockoff is only suggested for those who are doing off road racing only. <wink>


Or the link is here:
http://www.totalaccess.net/~center00/SyTy/Projects/Simplemods/reduce_the_heat.htm

8)

 

[Hu Ryde]

Re: Stealth EGR blockoff and overall heat reduction.

So are you drilling holes into your stock intake to secure the metal plate stays secure? Do these screws protrude into the intake runner or how are you doing this?

 

[supersports10]

Re: Stealth EGR blockoff and overall heat reduction.

holy old post batman!!!

 

[redty]

Re: Stealth EGR blockoff and overall heat reduction.

There are small bosses on the bottom of the intake already, so no, it does NOT go through the intake and is limited to the metal on the intake as long as you don't use a real long screw.

Sincerely,
Steve

 

[RAACCR]

Re: Stealth EGR blockoff and overall heat reduction.

Great idea. I did something similar a few years back. I tapped and studded the bosses under the intake, and red loctited studs into place, then used metal lock nuts to secure an aluminum splash shield in place. I also tapped a hole toward the rear of the manifold (near where the distributor goes) and installed a differential housing vent (~$5 from Jeg's) to let any hot air escape from beneath the runners. Don't know how much it helped, but for a little labor and only a few bucks in hardware, it can't hurt!

Rob

 

[jwaller]

Re: Stealth EGR blockoff and overall heat reduction.

Great idea. I did something similar a few years back. I tapped and studded the bosses under the intake, and red loctited studs into place, then used metal lock nuts to secure an aluminum splash shield in place. I also tapped a hole toward the rear of the manifold (near where the distributor goes) and installed a differential housing vent (~$5 from Jeg's) to let any hot air escape from beneath the runners. Don't know how much it helped, but for a little labor and only a few bucks in hardware, it can't hurt!

Rob

is this yours?

 

[RAACCR]

Re: Stealth EGR blockoff and overall heat reduction.

Yup...that's my old intake. I sold that motor to a guy up in your neck of the woods a few years ago...I think his first name was either Bud or Buck, but I can't remenber his last name. (I do recall that he had some kind of farming business.) What ever happened to the rest of the stuff? Last I heard, he was selling off the DeQuick dual core IC and some other stuff. It was a built stock block/crank with Brodix heads, a TS04 66 trim turbo on KB headers and FAST. I'm currently in the process of buying back my original 9k mile rolling chassis that it came out of, but I'll be dropping in a TT V-8 this time around.

 

[jwaller]

Re: Stealth EGR blockoff and overall heat reduction.

Yup...that's my old intake. I sold that motor to a guy up in your neck of the woods a few years ago...I think his first name was either Bud or Buck, but I can't remenber his last name. (I do recall that he had some kind of farming business.) What ever happened to the rest of the stuff? Last I heard, he was selling off the DeQuick dual core IC and some other stuff. It was a built stock block/crank with Brodix heads, a TS04 66 trim turbo on KB headers and FAST. I'm currently in the process of buying back my original 9k mile rolling chassis that it came out of, but I'll be dropping in a TT V-8 this time around.

well the motor was junk, spun bearings(locked up the turbo too) and the main caps weren't installed right so the block had to be replaced as well. I did the entire build for him and put a rpm unit in there as well as undating the firmware in the fast system and having it kill and WBO2 as it was a pretty old box. check my site for pics. it's still got the brodix heads and we needed to know what cam it had as he decided to reuse it but it just never seemed to be the right cam. he;s bringing it back very soon for a cam swap and more goodies.

 

[Tydriver]

Re: Stealth EGR blockoff and overall heat reduction.

An easier and cleaner (IMO) option to eliminating the EGR issue and maintaining 100% stock appearance for less than $5 is to do what I did here :

I just tapped the hole and threaded in the pipe plug I got from earls.. Worked great.. Also one thing to note.. The VORTEC HEADS 96+ dont have provisions for EGR either if memory serves me correctly...

As far as oil shed, I had the intake shot with some 'OIL SHED' powdercoating that came out when I had the rest of the intake show with the ceramic coating...

Just my