I just bought a new manifold that has a tial 44mm flange on it. My current manifold uses a tial 38mm. So I will have to replace my WG to a 44mm and was just curious if a re-tune is needed since im going with a 44mm now. Would it need a re-tune even if its running the same spring? I hope I can just swap everything out and not need a re-tune.

If not, can someone give me some pointers on dialing my boost back to 30 psi? Im doing as much reading as I can before I swap manifolds and WG but there is just so much info lol.

What do you guys think?

 

afr might need alittle tweaking but nothing evoscan + ecuflash + wideband cant fix in 5minutes

 

Ok, so you think boost will not change much if any?

Who want to make a few paypal bucks to help me do any changes if needed after I do the swap?

 

maybe, but i doubt timing will need fiddled with. ill pm you.

 

can I get confirmation on this? I would really hate to go WOT after the swap and hit higher boost and blow my engine. im running e85 and its cold as **** outside...
I was tuned over the summer

 

it will be determined by the spring used in the wastegate.

https://www.evolutionm.net/forums/ev...wastegate.html

according to this no difference. reason i say AFR will need adjusted is because you said you are getting a different exhaust manifold, which will require afr tuning most likely.

just make sure its the same spring rate.

 

ok thanks. ill send you a pm after i do the swap and some logging.

 

You can also get the tial 38mm v-band

 

but is the flange the same size as the 44mm? the manifold I got has a flange for 44mm. I think the flange on the 38 is a little smaller. im not 100% sure though. any one know? that would save a ton of money and I wouldnt have to worry about dialing back my boost.