:::RHMT::: Real Home Made Turbo

General Category => Forced Induction => Topic started by: speedjunky01 on February 19, 2010, 04:48:43 PM

Title: CDM t3/t4 Thread Pattern
Post by: speedjunky01 on February 19, 2010, 04:48:43 PM
anyone know what the thread pattern is on the "50 trim" china turbos? i put in some m8x1.25 or something and they seem loose, anyone know for sure whats supposed to go in the downpipe bolts?
Title: Re: CDM t3/t4 Thread Pattern
Post by: 90turboteg on February 19, 2010, 04:54:00 PM
i think there a standard bolt like 3/8 by 16 or 1/2" by 13. all of the turbos i have owned have had standard threads :?:
Title: Re: CDM t3/t4 Thread Pattern
Post by: speedjunky01 on February 19, 2010, 04:56:15 PM
i think there a standard bolt like 3/8 by somthing. all of the turbos i have owned have had standard threads :?:

yeah i thought so but wasnt sure hope the metrick shit didnt ruin the CDM goodness too much hahah
Title: Re: CDM t3/t4 Thread Pattern
Post by: 90turboteg on February 19, 2010, 04:57:42 PM
sorry, i use mostly metric stuff at work, had to remeber the standard sizes.
Title: Re: CDM t3/t4 Thread Pattern
Post by: danz on February 20, 2010, 01:54:35 AM
mine was metric, M8x1.5 if i remember correctly
Title: Re: CDM t3/t4 Thread Pattern
Post by: Corey on February 20, 2010, 03:03:33 AM
its 8x1.25

same as honda exhaust/intake manifold bolts.

Title: Re: CDM t3/t4 Thread Pattern
Post by: 90turboteg on February 20, 2010, 03:13:24 AM
werid, all of the turbos ive had were standard threads. but i havent goten a cdm turbo yet
Title: Re: CDM t3/t4 Thread Pattern
Post by: speedjunky01 on February 20, 2010, 05:55:20 AM
Sweet glad I got a definitive answer :-*

So far it's
m8x1.25
m8x1.5
standard 3/8

Lol
Title: Re: CDM t3/t4 Thread Pattern
Post by: danz on February 20, 2010, 05:48:04 PM
id go with the 1.25 thread over what i said being 1.5... i know for SURE it was M8.
Title: Re: CDM t3/t4 Thread Pattern
Post by: PhilStubbs on February 20, 2010, 06:28:16 PM
i dont know what the actual measurements are, but its the same as honda exhaust studs and any other bolt on a honda with a 12mm head
Title: Re: CDM t3/t4 Thread Pattern
Post by: speedjunky01 on February 20, 2010, 06:30:31 PM
i dont know what the actual measurements are, but its the same as honda exhaust studs and any other bolt on a honda with a 12mm head


good tip ill try that!
Title: Re: CDM t3/t4 Thread Pattern
Post by: theidealone on February 21, 2010, 04:56:54 AM
M8s in mine.
Title: Re: CDM t3/t4 Thread Pattern
Post by: glustic on February 21, 2010, 01:44:27 PM
Take the turbo to Home Depot / Lowes and see which one it is

/thread
Title: Re: CDM t3/t4 Thread Pattern
Post by: Towdogg on February 21, 2010, 08:36:59 PM
i dont know what the actual measurements are, but its the same as honda exhaust studs and any other bolt on a honda with a 12mm head
Title: Re: CDM t3/t4 Thread Pattern
Post by: speedjunky01 on February 22, 2010, 11:55:20 AM
Take the turbo to Home Depot / Lowes and see which one it is

/thread

i would if i didnt have to take apart half my car to get to the snail
Title: Re: CDM t3/t4 Thread Pattern
Post by: glustic on February 22, 2010, 01:40:21 PM
Buy suggested bolts and see which ones fit
Title: Re: CDM t3/t4 Thread Pattern
Post by: HiProfile on February 23, 2010, 05:08:54 AM
If the threads are wrong, they will only thread in 2-3 turns with your finger. If you manage to strip/crossthread the threads with your fingers, the porn industry needs your strong hands...

There will be course, fine, and "Honda" in case of bigger metric bolts (very fine). If a Honda bolt doesn't fit, which will be either m10x1.25 or m8x1.0, try the next thread pitch up. Just remember, CDM = whatever the fuck they had tooling for. No QC & non-decerning customers = no real standard.
Title: Re: CDM t3/t4 Thread Pattern
Post by: bigwig on February 23, 2010, 03:24:00 PM
Why don't you take the turbo to the hardware store and buy the bolts?  Walking around with a turbo housing = bad-ass.
Title: Re: CDM t3/t4 Thread Pattern
Post by: onlyflash944 on February 23, 2010, 03:58:42 PM
Why don't you take the turbo to the hardware store and buy the bolts?  Walking around with a turbo housing = bad-ass.


this
Title: Re: CDM t3/t4 Thread Pattern
Post by: speedjunky01 on February 23, 2010, 05:38:09 PM

i would if i didnt have to take apart half my car to get to the snail

this
Title: Re: CDM t3/t4 Thread Pattern
Post by: bigwig on February 23, 2010, 06:33:47 PM

i would if i didnt have to take apart half my car to get to the snail

this

Quit being a faggot.  Either buy a variety of bolts and return them if you don't need them or take off the turbo.  I can't imagine taking off the housing taking more than an hour or so.
Title: Re: CDM t3/t4 Thread Pattern
Post by: glustic on February 25, 2010, 07:43:25 PM

i would if i didnt have to take apart half my car to get to the snail

this

Quit being a faggot.  Either buy a variety of bolts and return them if you don't need them or take off the turbo.  I can't imagine taking off the housing taking more than an hour or so.

+1 but fuck returning the bolts, there only .50
Title: Re: CDM t3/t4 Thread Pattern
Post by: ApexSilver06MR on March 01, 2010, 03:37:04 AM
Pressure plate bolts work great.