9krpmrx8's Boost Build Thread
11-10-2011, 01:35 PM
#1459
SARX Legend
Thread Starter
iTrader: (46)
When I took my engine to the engine shop the old guy at the shop told me to never use hardware store junk bolts (as he called them). So I actually did a bit of research as to what the numbers meant on the bolt heads and the differences between metric bolts and SAE bolts and I found the steel bolts I bought from Lowes were really low grade and not heat treated. The same goes for the bolts that Autozone, Oreilly's and Advance carry.
The guy at Advance told me only NAPA or fastenal would carry bolts like that. I did get some nuts from Fastenal and Advance special ordered the studs I needed but neither had what I wanted otherwise so I went to NAPA and got the allen head shoulder bolts I wanted because they are heat treated and Grade 12.9. They had the best assortment of high strength heat treated bolts so that is my go to place. They also have 10.9 (grade 8) hex bolts that are heat treated so I will go with those I guess since it is too tight of a fit to go with shoulder bolts.
I highly recommend studs on the manifold to turbo connection but only three, the fourth hole at the rear is a bitch to get too so I used a grade 8 heat treated hex bolt there with a lock washer since it was easy to get too using a rachet end wrench. using a stud and a nut there could be a pain but still doable.
The allen head shoulder bolts worked fine on the air pump port (using my RB block off plate) on the downpipe and the oil drain fitting so since I have them, You should use them at those areas. I also used allen head shoulder bolts and lock washers on the inlet pipe and outlet pipe of the turbine. The inlet requires two bolts of the same size but the turbine outlet pipe requires one shirt bolt and one long bolt. Shoulder bolts hold the inter-cooler to the brackets as well.
The guy at Advance told me only NAPA or fastenal would carry bolts like that. I did get some nuts from Fastenal and Advance special ordered the studs I needed but neither had what I wanted otherwise so I went to NAPA and got the allen head shoulder bolts I wanted because they are heat treated and Grade 12.9. They had the best assortment of high strength heat treated bolts so that is my go to place. They also have 10.9 (grade 8) hex bolts that are heat treated so I will go with those I guess since it is too tight of a fit to go with shoulder bolts.
The allen head shoulder bolts worked fine on the air pump port (using my RB block off plate) on the downpipe and the oil drain fitting so since I have them, You should use them at those areas. I also used allen head shoulder bolts and lock washers on the inlet pipe and outlet pipe of the turbine. The inlet requires two bolts of the same size but the turbine outlet pipe requires one shirt bolt and one long bolt. Shoulder bolts hold the inter-cooler to the brackets as well.
11-10-2011, 04:44 PM
#1472
SARX Legend
Thread Starter
iTrader: (46)
^ 
Okay who thinks this would be a good filter for the oil feed line?
http://www.jpcycles.com/product/740-...1&zmap=740-823
or do you think an inline transmission filter would be a better option?
http://www.race-mart.com/Hastings_Fi...HAF-TF109.html
I keep reading about how even a little bit of debri can ruin a journal bearing turbo, I'd rather play it safe.
Okay who thinks this would be a good filter for the oil feed line?
http://www.jpcycles.com/product/740-...1&zmap=740-823
or do you think an inline transmission filter would be a better option?
http://www.race-mart.com/Hastings_Fi...HAF-TF109.html
I keep reading about how even a little bit of debri can ruin a journal bearing turbo, I'd rather play it safe.
Last edited by 9krpmrx8; 11-10-2011 at 04:47 PM.
