Keeping weight off of header

[gstowner]

Hey guys
Putting my car back together and had a question. I need to figure out how to keep all the weight from the turbo, downpipe, ect. from being only held up by the header. I don't want all that heat and weight to cause it to crack. I still have the strap from my old 2'' downpipe. Anyway I could get something worked up to use it on my 2.5'' now. Would that hold some of the weight.

Thanks guys

 

[turbo addict]

On my race car I am going to make a bracket that bolts to the oil outlet (replaces the oil outlet flange) and to the block to hold the turbo up, I have a dnp manifold and a gt42 so I want to keep the 40-50lb turbo up with out killing the dnp. I don't know why more people do this.

 

[dsm-onster]

This sounds like a good idea. But I just can't picture what your saying. . . Pics? The flange is integrated on the turbo. How do you replace it? Are you saying that you are going to add a bracket that uses the oil drain bolts as a connection? I'm tempted to buy a more performance oriented exhaust mani. I'd like to know what you mean. 'Tis all.

 

[turbo addict]

The oil return fitting is part of the bracket. Think of an oil return fitting like this (http://store.forcedperformance.net/...roduct_Code=FLT3T4OD&Category_Code=Acc-Gasket) or this(http://store.forcedperformance.net/...roduct_Code=FP2GK16G&Category_Code=Acc-Gasket) but made of stainless steel and thicker with one of the sides (closest to the block) longer so you can bolt another piece of SS to the block, or have one piece bracket all SS bent and welded to fit . I was going to try to use the stock mounting holes where the stock downpipe strap bolted up. I want the turbo to be able to stay in place with the manifold not in the car, to support the entire weight of the turbo so there is little to no stress on the manifold.

 

[gstowner]

Do you think I even need any support? Its only an evo 3. It's not a great deal of weight. Whats everone's oppinion?

 

[DSMSpyder99]

well what kind of "header" do you have? If you have a cheap ebay XSpower, i have seen them crack around the collector numerous times. If your "header" you are referring to is stock 2G cast manifold ( or EVO, SBR, FP) it will hold. Upgrade the studs those break more often.

 

[gstowner]

I don't know what brand it is. I got it used off of ebay. It was used for about a 1000 miles then he parted the car out. It does have extra support where the tubes meet the flange. (pieces welded on at an angle) To help support weight. But yes it's a tubular not a cast manifold

 

[Maglin]

I'm just going to build a bracket that goes to the turbo bolts. Probably make it a 2 piece unit. My turbo weights 44 lbs. It will crack a tubular manifold over time. I plan to use one of the mount bolts to attach it to. It was something I thought about the instant I picked up my new turbo and realized how f'ing heavy it is. Using the oil return is a decent idea. Never really thought about using it. I just plan on building mine on the motor. Fab the brackets and then weld some tubular steel onto them.

 

[toojung2die]

I still have the strap from my old 2'' downpipe. Anyway I could get something worked up to use it on my 2.5'' now. Would that hold some of the weight.

I welded a bracket to my RRE downpipe where the stock strap used to be so I could bolt the downpipe to the original support on the block. It takes the weight of the downpipe off of the exhaust manifold and helps support the turbo. If I removed the exhaust manifold the turbo would still be supported by the downpipe.

 

[CPHunter]

well what kind of "header" do you have? If you have a cheap ebay XSpower, i have seen them crack around the collector numerous times. If your "header" you are referring to is stock 2G cast manifold ( or EVO, SBR, FP) it will hold. Upgrade the studs those break more often.

Dan, why you gotta bring up my story at California Speedway, when my manifold was cracking at half way around. best bet is to talk to Punishment racing. send it to him. he does extra bracing on these cheap ebay manifold makes them strong.

 

[tkelly27]

If it's tubular and not made of thick tubes, you'll want to run a brace. If it's an ebay header, I can't reccomend that you run it without making a brace of your own. The ones I've seen on ebay are not done properly. You need the brace to support the weight of the turbo, not brace the #2 or 3 runner to the flange!

Make sure to brace it to the engine, not the body. Also, make sure you use a flex pipe on your DP, that removes the stress from the rest of the exhaust from the turbo.

I'm going to be running my brackets on the turbine inlet bolts. Oil drain is a good idea, it could just kinda... sit on them

 

[turbo addict]

If it's tubular and not made of thick tubes, you'll want to run a brace. If it's an ebay header, I can't reccomend that you run it without making a brace of your own. The ones I've seen on ebay are not done properly. You need the brace to support the weight of the turbo, not brace the #2 or 3 runner to the flange!

Make sure to brace it to the engine, not the body. Also, make sure you use a flex pipe on your DP, that removes the stress from the rest of the exhaust from the turbo.

I'm going to be running my brackets on the turbine inlet bolts. Oil drain is a good idea, it could just kinda... sit on them

That was what I thought, with the gt42 I have a vband on the downpipe outlet so the oil outlet looked like the best route.

 

[AVC-R]

Just a question. But what about bracing the manifold to the front valve cover bolts. Yea they are small but if you made 3 strap like brackets then i would think that would be plenty of support. something kind of like a gusset. but on top, as hanging support. That along with the stock dnp bracket should be more then enough to hold one of those cheap ebay manifolds wouldn't it?

 

[VanIsleDSM]

I like the idea of just using the stock location to bolt an aftermarket DP To.. that's why it's there is the first place, to take weight off the manifold... if you turbo can just sit on the DP in place you're gravy.. and I think that'd be the easiest route aswell.

 

[Gs Dewd]

Thats exactly what I did. I used the stock bracket that mounts to the down pipe from the base of the engine block and haven't had any probs with my header. It will hold the wieght of the turbo just fine.