D5 converter?

[ikle]

How good is the stock D5 converter and how fast can you go with it?The reason why I am asking is because I plan on upgrading my turbo to a te44 but don't know if I should go with a duel bb or journal bearing.I believe if I go with the duel bb set-up I don't need a converter,but if I go with a journal bearing set-up I think I need a 2800 stall converter.So if the stock converter is not that good I would rather spend the extra money on a converter instead of the duel bb set-up.Thanks any info would be great,ikle

 

[charlief1]

The higher stall the converter you can run into efficiency issues. Going with a larger turbo you'll need a higher stall converter to make it spool better. You might as well get a 10" so you can take advantage of the turbo and keep the efficiency.

 

[LOLGN]

Stock d5's have gone atleast mid 11's and I know some freaks have gone quicker than that. Going ballbearing allows you alot more freedom in turbo selection as far as the stock converter is concerned. Any ballbearing turbo 61mm or smaller will spool up well with a stock converter and a stock motor. Keeping the converter tight is going to pay dividends when it comes to the big end, if it's too loose you're going to slip excessively and a stock cam won't allow enough revs to get it to come back around. The 2800rpm converter in my car makes for impressive low end response but it's a little bit too loose up top once you do get traction. I'm sure nearly any aftermarket converter smaller than the d5 is going to be lighter which is a benefit by itself. Something around a 61mm ballbearing turbo with a stock-2400rpm converter is a good match for a stock motor.

 

[bison]

A 12" that spools to 2600 zero boost/vacuum will spool a 44. If you have the garrett ex housing it will spool well with a 2400.