48ar exhaust w/ 60ar 50 trim comp on b18c

[eggie75]

has anyone had any experience with this setup? is the 48 ex too small - will it run out of breathe? motor has pistons / rods / hondata. can run 15lbs. input pls.

 

[ryan89crx]

honestly i would jump up to the .63 exhaust housing. at 8k, that .48 is going to be HOT and nowhere near as efficient

 

[stealthy]

too small.




and how do you know how much psi you can run if you dont even know what turbo you are running? that makes no sense.

 

[qwikxr]

Well, the .48/.60AR isn't "too small".. It will just spin too fast at the RPMs the motor will spin.

Using that turbo, I made 345hp @ 24psi on my 2.3L 8v Merkur, but it redlined at 6500... And it wasn't efficient at those pressures, I know that. It's "sweet spot" is around 15-18psi..

On a torqueless honda, that turbo will spool quick, due to the .48AR, much earlier than the .63 will.. but on the top end, it'll suffer. (trying not to get technical.. )

edit
If you are staying on 15psi, it'll be fine, actually, since the wastegate will keep it from overspooling..

Personally, with my .63AR T3/T04E Turbonetics on my B18C, I don't get boost until about 4500-5000, which in my opinion, is waste.. I'd prefer it hit positive pressure around 35-3800rpm..

 

[eggie75]

well, runnin a 63/60 57 now. get boost around 5k. had a 48/42 b4 and it was pretty fun to drive, but it was just too small. hopefully the bigger comp will flow enough to keep some top end. someone needs to make a turbo between 48 and 63.

just used 15 as a number cuz thats how much im runnin now. of course i'll get it retuned if i decide to go w/ the smaller turbo.

 

[qwikxr]

where'd your boost come in with the .48?

Yes, the .42AR compressor is friggin tiny..

 

[eggie75]

3kish

 

[deftone]

im running a .48 exhaust with a .50 intake and i love... it spools up so fast. zero turbo lag

 

[eggie75]

great! i think im gonna slap this turbo on. not looking for max hp - something fun to drive.