Boost Creep. Enlighten me

Indy · Post by **Indy** » Sat Feb 12, 2005 6:44 pm

That's the other one I was thinking of. I don't think Inconel welds that nicely. Okay, I'm done.

Jinxmutt · Post by **Jinxmutt** » Fri Feb 25, 2005 8:30 pm

Hey guys, I found a turbo for the 3800 that I want to use. It has the wastegate port on the exh side of the turbo, rather than to be mounted on the manifold. I'm lookin for input from perhaps howard or someone as to this design, vs putting it on the crossover..

thanks

Post by **eHoward** » Fri Feb 25, 2005 9:09 pm

You mean it has an integral wastegate? or welded it onto the housing. . .

if its integrated its fine. if it is welded it depends. New turbos really arent that expensive man.

You know what I did see a little while back that was neat, it was a T4 sized flange spacer that had a flange on the side to place a deltagate style wastegate.

Jinxmutt wrote:Hey guys, I found a turbo for the 3800 that I want to use. It has the wastegate port on the exh side of the turbo, rather than to be mounted on the manifold. I'm lookin for input from perhaps howard or someone as to this design, vs putting it on the crossover..

thanks

Jinxmutt · Post by **Jinxmutt** » Fri Feb 25, 2005 11:19 pm

Howard, it wasn't an internal wastegate. The turbine had the wastegate flange 'cast' with the part. I'll have to look through my history to find the pages. I think it was about $260 for just the turbine housing with a .82 A/R...

This would make creating the crossover much easier as well....

Edit, found one on ebay...
ebay link

Post by **eHoward** » Sat Feb 26, 2005 4:05 pm

Id have to see cross sectional drawings to tell you for sure what my opinion is regarding flow.

I will say this, cost and ease of install are the two reasons I would go with an integral style wastegate(and that is similar in style) and it looks to me like you arent getting either with that housing. You are going to have to weld a pipe for the dump tube (ease) and you are going to have to buy a wastegate (cost).

Having said that, if you are going to weld a dump tube for the external wastegate anyway which you will with that housing, how much more work is it really to also had a flange for the wastegate once you have the welder out? Maybe 10 minutes.

Post by **eHoward** » Mon Jul 18, 2005 10:18 pm

I saw this manifold and thought immediately of this thread:

it's from a champ car and as close to perfect as I've seen. As a side-note, notice the a-arms arent' carbon due to the global carbon fiber shortage.

Kohburn · Post by **Kohburn** » Tue Jul 19, 2005 7:24 am

eHoward wrote:Id have to see cross sectional drawings to tell you for sure what my opinion is regarding flow.

I will say this, cost and ease of install are the two reasons I would go with an integral style wastegate(and that is similar in style) and it looks to me like you arent getting either with that housing. You are going to have to weld a pipe for the dump tube (ease) and you are going to have to buy a wastegate (cost).

I went integral for easy of setup and space savings.. new turbo with the 5bolt flang to accept an internal wastegate - then had to buy the wastegate housing - everywhere i could find it was almost 200$ for a new one - then i managed to snatch one off ebay that was listed incorrectly for 50$

and then i just won a decent sized intercooler http://cgi.ebay.com/ebaymotors/ws/eBayI ... 7987434460

Doug Chase · Post by **Doug Chase** » Tue Jul 19, 2005 2:28 pm

eHoward wrote:due to the global carbon fiber shortage.

Huh?

Post by **eHoward** » Tue Jul 19, 2005 4:59 pm

So uh, who wants a stock tip?

Doug Chase wrote:
eHoward wrote:due to the global carbon fiber shortage.
Huh?

Doug Chase · Post by **Doug Chase** » Tue Jul 19, 2005 5:04 pm

I can't tell if you're jesting or if you're serious.

Either way, that's a gorgeous header on that Champ car.

Post by **eHoward** » Tue Jul 19, 2005 6:30 pm

PM sent.

Doug Chase wrote:I can't tell if you're jesting or if you're serious.

Either way, that's a gorgeous header on that Champ car.

Post by **eHoward** » Sun Sep 18, 2005 9:32 am

Shaun41178(2) · Post by **Shaun41178(2)** » Sun Sep 18, 2005 9:59 am

Good god that is beautifull.

Fwap fwap fwap.

Kohburn · Post by **Kohburn** » Mon Sep 19, 2005 9:46 am

that intake box is fascinating - trying to figure out what the other gadget are

teamlseep13 · Post by **teamlseep13** » Mon Sep 19, 2005 3:00 pm

The have the ECU mounted on it, as well as a BOV type thing that is mandated rules if I remember correctly.

Sweet setup.

Indy · Post by **Indy** » Mon Sep 19, 2005 5:55 pm

teamlseep13 wrote:The have the ECU mounted on it, as well as a BOV type thing that is mandated rules if I remember correctly.

Sweet setup.

The big ass black BOV thing in the middle controls boost to keep teams from overboosting beyond a pressure set by the rules committee. Hell, they aren't even installed until race day, where it's overseen by officials, to keep teams from tampering with it. Heh, reminds me of an episode of CSI...

The Dark Side of Will · Mon Sep 19, 2005 7:50 pm

Check out the equal length headers.

Post by **eHoward** » Mon Sep 19, 2005 8:42 pm

You know, I didn't realize those were the same engines until today. Sometimes I'm slow. . :blah5:

teamlseep13 · Post by **teamlseep13** » Mon Sep 19, 2005 9:20 pm

Indy wrote:
teamlseep13 wrote:The have the ECU mounted on it, as well as a BOV type thing that is mandated rules if I remember correctly.

Sweet setup.
The big ass black BOV thing in the middle controls boost to keep teams from overboosting beyond a pressure set by the rules committee. Hell, they aren't even installed until race day, where it's overseen by officials, to keep teams from tampering with it. Heh, reminds me of an episode of CSI...

Ya, thats what it was. To make sure no ones running more boost than the other. I do know that rules have their places, but I would love to see some more turbo v8 installed in full ground effects cars like back in the the eighties. Just imagine how much faster those cars would go with new tech and research. Oh well

teamlseep13 · Post by **teamlseep13** » Mon Sep 19, 2005 9:26 pm

The Dark Side of Will wrote:Check out the equal length headers.

Headers on race cars are probably the coolest, sexiest looking things. And its a great place to start if your gonna try and make some of your own headers, cause they have tuned the hell out of them to get the most power outta them possible.
I love the expansion bellows leading into the turbine. Very well designed exhaust setup.