FINALLY!!! Titanium turbo manifold pics
11-24-2009, 09:37 AM
#126
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Re: FINALLY!!! Titanium turbo manifold pics
Can someone post some info/links on ti properties in regards to heat tolerance in relation to standard stainless/carbon steel used on most manifolds?
My road race turbo car has some handling issues with the extra weight of the turbo setup over the front axle. Removing 15 lbs of weight would be an improvement. But I sustain 1300-1600 deg EGT's for 20-30 minutes at a time. Combined with the vibration of the car and heat cycling, how would ti hold up in the long run?
My road race turbo car has some handling issues with the extra weight of the turbo setup over the front axle. Removing 15 lbs of weight would be an improvement. But I sustain 1300-1600 deg EGT's for 20-30 minutes at a time. Combined with the vibration of the car and heat cycling, how would ti hold up in the long run?
11-24-2009, 09:58 AM
#127
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Re: FINALLY!!! Titanium turbo manifold pics
hrmm .. i think there would be lots of companys interested in paying salary's in " love" haha .. definitely a good way to get the name out by doing a 1 off crazy setup like you guys have done. If the owner of said turbo kit doesn't appreciate and show the car off. Let me know, I'll go REPO it !
11-24-2009, 02:30 PM
#128
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Re: FINALLY!!! Titanium turbo manifold pics
hrmm .. i think there would be lots of companys interested in paying salary's in " love" haha .. definitely a good way to get the name out by doing a 1 off crazy setup like you guys have done. If the owner of said turbo kit doesn't appreciate and show the car off. Let me know, I'll go REPO it !
11-25-2009, 03:33 PM
#133
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Re: FINALLY!!! Titanium turbo manifold pics
I hate to sound pessimistic, but titanium has a big problem with oxidation above about 1000 degress F, and loses strength above about 850 degrees F. It works well for exhausts, but the heat buildup in turbo manifolds can cause failure very quickly. I suppose I should have first asked, what grade of Ti are you using?
And I must say, your fabrication work is awesome. That whole unit you built looks fantastic.
And I must say, your fabrication work is awesome. That whole unit you built looks fantastic.
11-25-2009, 08:48 PM
#136
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Re: FINALLY!!! Titanium turbo manifold pics
"Can someone post some info/links on ti properties in regards to heat tolerance in relation to standard stainless/carbon steel used on most manifolds?
My road race turbo car has some handling issues with the extra weight of the turbo setup over the front axle. Removing 15 lbs of weight would be an improvement. But I sustain 1300-1600 deg EGT's for 20-30 minutes at a time. Combined with the vibration of the car and heat cycling, how would ti hold up in the long run?"
Removing the intercooler set-up and running straight methanol would save more weight, give more power, and cost less than a titanium manifold. If the rules allow it, that is the easiest solution. If not, swiss cheese the car up front, as the metal in front of the suspension is just dead weight in terms of stiffness and handling.
The high temp properties of Titanium are not especially good. This is CP-2, having slightly more oxygen and iron than CP-1. At 1000F, this grade will have only 30-35% the strength of 304L. We have covered that this is not a good choice for a driver or race car in all honesty.
This is a showcar, designed to shock and awe, which it does. It will run, but under continuous load, the titanium will get hotter than is sustainable for this alloy. Once over 1000F, it gets ugly. It should however be noted that the EGT's are not representative of the metal temperature. 1000F would be a reasonable expectation at those EGT's.
900F is a visible blood red in a dim lit room.
If you were firm on using titanium, using 3al/2.5v would be a much wiser choice. It has 4 times the strength of the pure grades at elevated temperatures such as 1000F, but is still a poor choice compared to 321 stainless.
If you wanted the lightest possible manifold, or the strongest, 625 inconel would be the way to go. The cost however is outlandish. You will pay $100/elbow in 1.5" sch.10 pipe, and $150/ft for straight 2.0" tubing x 035" wall.
I hope this helps clear up the concerns. Keep posting kudos as this is truly a work of art.
Purpose built, accept it for what it is.
My road race turbo car has some handling issues with the extra weight of the turbo setup over the front axle. Removing 15 lbs of weight would be an improvement. But I sustain 1300-1600 deg EGT's for 20-30 minutes at a time. Combined with the vibration of the car and heat cycling, how would ti hold up in the long run?"
Removing the intercooler set-up and running straight methanol would save more weight, give more power, and cost less than a titanium manifold. If the rules allow it, that is the easiest solution. If not, swiss cheese the car up front, as the metal in front of the suspension is just dead weight in terms of stiffness and handling.
The high temp properties of Titanium are not especially good. This is CP-2, having slightly more oxygen and iron than CP-1. At 1000F, this grade will have only 30-35% the strength of 304L. We have covered that this is not a good choice for a driver or race car in all honesty.
This is a showcar, designed to shock and awe, which it does. It will run, but under continuous load, the titanium will get hotter than is sustainable for this alloy. Once over 1000F, it gets ugly. It should however be noted that the EGT's are not representative of the metal temperature. 1000F would be a reasonable expectation at those EGT's.
900F is a visible blood red in a dim lit room.
If you were firm on using titanium, using 3al/2.5v would be a much wiser choice. It has 4 times the strength of the pure grades at elevated temperatures such as 1000F, but is still a poor choice compared to 321 stainless.
If you wanted the lightest possible manifold, or the strongest, 625 inconel would be the way to go. The cost however is outlandish. You will pay $100/elbow in 1.5" sch.10 pipe, and $150/ft for straight 2.0" tubing x 035" wall.
I hope this helps clear up the concerns. Keep posting kudos as this is truly a work of art.
Purpose built, accept it for what it is.
11-29-2009, 01:49 AM
#139
Re: FINALLY!!! Titanium turbo manifold pics
Just on pictures alone, all the craftsmanship looks real good. Cutting, welding and machining. Your customer is probably super stoked. As for the design, it looks a little loose. Better wastegate placement and a tighter collector could have made this thing look even better.
11-29-2009, 06:57 AM
#140
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Re: FINALLY!!! Titanium turbo manifold pics
That manifold looks incredible. I won't even try to do the virtual arithmatic to find what it costs....worth it. The welds and spot on construction definately qualify that turbo set up as a piece of art.
12-01-2009, 03:59 PM
#142
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Re: FINALLY!!! Titanium turbo manifold pics
Just looking at the pics it is hard to invision how it all works out. Then I read all the posts and saw that it was for a MINI COOPER with a K in it. Holy sh*t. So sick man. Nicest fab I've ever seen. Although I haven't seen much.
12-10-2009, 04:53 AM
#147
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Re: FINALLY!!! Titanium turbo manifold pics
I hate to be a douche, but even if this is true, you would still have almost 4 months into this project. Two, if the time was split between you and your partner. Thats if you worked 120hr weeks and did nothing but this.
12-11-2009, 06:05 AM
#148
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Re: FINALLY!!! Titanium turbo manifold pics
Yes if you look at planning, getting paid for material, and waiting for everything to come in, we spent 4 months and one day on it, you have to remember, this was fab work done from across the country, not everyone does that kind of thing, btw, customer has received everything and pics of it on the car should be up soon
