Ah! the pics are back...Very nice. Doesn't a turbo car need a BOV to function properly, otherwise the compressed air has no place to go under deceleration causing big problems......

 

No, plenty of cars out there without BOV's.

 

count the pedals

 

hey what kind of rims are those i been looking for some like that but in black for my r100

 

Not using a BOV makes it harder on the turbo durring shifting. It starts to spin the turbo backwards because of the built up pressure after the compressor, and puts stress on the shaft. It makes it so the turbo must spool all the way back up after you shift. It is still fine to run without one though, the turbo will put up with the abuse, and last probably 1/2-3/4 as long as normal.

 

the rims are autobahn type 15x 7 with 205-50-15 tires on them

 

right on!!!!

 

lucky bastard, Ill have a screamer one day...

 

Hey 680, I ran into you on anothyer site where you posted pics of the 12a you just finished. Nice job. I've got a question for you guys. I have an S5 T2 front clip that I'm swapping the motor out of. It came with ECU, harness, etc. I already have a Dellortro 48 DHLA from a different project. Now I'm really torn between using the carb or buying injectors and a feul contreoller and swapping the EFI. I'd love to run a mild street port and upgrade the compressor on the turbo. What do you guys think?

 

well if your going for simplicity, ease of installation and good performance then you gotta go with the blowthrough system... if you are looking for maximum hp then you need to go with efi, but you better have a good tuner or your dead in the water!!

 

i have a simular set up, what turbo manifold did you use? custom or modify a s4/5?
thanks
Mark

 

this thread is 4 yrs old

 

Thats ok, 680 is still around.

 

lol, thats what i was thinking

 

it might take me 4 yrs to get to it though, lol...
its a s5 stock turbo/ manifold sir

 

Thanks for the quick reply! so i persume you spin the exhaust manifold 180degrees what other modification does it need to fit as i though the ports wouldn't line up? i know the studs won't

thanks
Mark

 

I disagree with the "1/2-3/4 as long as normal" statement....

Actually, there have been studies showing that BOV's do not actually lengthen the turbos life at all. Before you give me grief on this just hear me out. Because I always thought having a turbo spinning at 100k+ RPMs and then slamming your throttles closed and surging the hell out of the compressor would be hard on it as well....it's just common sense right? But apparently turbos are alot tougher than I thought.

The Grandnational guys have been arguing over this for years. And they have tested 2 identical grand nationals one with a BOV and one w/o and ran them 100k. Then removed the turbos and mic'd out all the parts. The turbos were almost identical. Neither showing a negligible difference in wear.

Take it for what U will.... The tests have been done by several other manufacturers with similar results.


But if you drive a manual, it does help with relieving manifold pressure between shifts and if it is vented back into the inlet helps to keep the turbo spooled up between shifting as well.

If U drive an auto turbo car I'd spend the money elsewhere IMO. But since none of you do.... I'm probably ****'n in the wind here.

:cheers:

AND NICE CAR 680RWHP12A!

 

i hate bov's

 

not to be an *** but 680RWHP12A u still have pix for this se turbo?

 

^ Max, this thread is approaching 5 years old! :o

 

lol i noe didnt want to make a new thread cuz i was thinking of doing a sim setup.

 

back from the dead so i figured i would dig up some pics

 

thx mang ull hear from me soon to come. im just getting some idea's on wat i want to do with my se. i noe im going turbo and carb. but iono if i should stay 6 port with a 12a center irons or go all out for a 4 port. im going to use se internals. this car isnt a daily so thinking for a half bridge or something. i jsut miss driving my fb...i just doesnt feel the same lol

 

^^ really hard to read what you are trying to say.^^

Spell the words out a little better... Make it easier on us old timers...


L8R

 

Wow, that is a beautiful seven man. The only thing I'm not crazy about is the whale tail, but thats just a peference. How much power does that setup make