Honda D Series Forum banner

1 - 10 of 10 Posts

·
Registered
Honda
Joined
·
2,692 Posts
Discussion Starter #1
Well, i got my downpipe and i realized that i may just have a little problem.

the downpipe is 3" in diameter, and the blockoff flange (downpipe flange) that bolts to the turbo is ALOT smaller. i didnt measure but it only looks to be about 2.25"-2.5".

anyway here is a pic of the downpipe flange:


and here is a pic of the downpipe:

as you can see, the downpipe has a little flange around the end, which makes the fit that much worse. but anyways, when you line the downpipe to the downpipe flange, it covers the bolt holes that connects the flange to the turbo, so i need to find away to make the end of the pipe smaller so i can weld it to the flange without covering the bolt hole

any ideas on what the best way to do this would be?


thanks
 

·
Registered
Joined
·
3,586 Posts
2.5" to 3" coupler welded in between would be the best bet
 

·
Registered
Joined
·
22 Posts
Is that a V-band flange on your DP? If so, you should sell it and just get another one made, perhaps one that fits your turbo a little better. Or, as has been suggested, you should weld in a reducer.
 

·
Lifetime Awesome Member
'89 CRX HF
Joined
·
25,544 Posts
looks like your DP is v-band flanged...

get a 2.5" - 3" reducer and weld it to the turbo flange, cut the vband off the DP, and weld the pipe to your reducer
 

·
Registered
Honda
Joined
·
2,692 Posts
Discussion Starter #9
looks like your DP is v-band flanged...

get a 2.5" - 3" reducer and weld it to the turbo flange, cut the vband off the DP, and weld the pipe to your reducer
thanks for the help ryan......... i appreciate it

thats prolly what i will end up doing when it is all said and done, seems like the most logical and easy thing to do

-kendall
 

·
Registered
Honda
Joined
·
2,692 Posts
Discussion Starter #10
buy a different flange?
its not worth it when i can get around it like ryan reccomended. besides, its a 7 bolt which i dont believe are very common.

-kendall
 
1 - 10 of 10 Posts
Top