dyno dissapointment help - 3000GT/Stealth International Message Center

krazi · 03-20-2008, 10:46 AM

hey guys i know you all will figure this out. had car dynoed yesterday by a shop in columbus (not ips) part of package deal so couldnt say where to take it. anyways i only put 455 awhp 475tq @ 18psi. on 94 octane thats very disapointing. I have a fully built 3.1L, fully worked dale forrester racing heads, 272 cams, aem ems, true dual feed system using -8 lines everywhere, no cats full 3" exhaust. everything is brand new all lines everything nothing is used. Shop says my evoiii are droping off the charts at 5700 rpms and thats why i dynoed so low. there are no leaks anywhere. so my question is why are these turbos only holding 18psi to 5700 then dropping off? Thanks guys i hope you can figure it out for me.
ryan

pics can be seen here of the parts

http://s252.photobucket.com/albums/h...=nav_tab_album

link to dyno pulls
http://videos.streetfire.net/video/R...rts_154725.htm

tuned at slow motion motorsports in columbus ohio.

MustGoFaster · 03-20-2008, 10:55 AM

Are the turbo's in the pics the turbo's that are on the car? If so at least one of them is a 14B from a DSM.

krazi · 03-20-2008, 11:03 AM

oh no disregard that pic thats old turbos

lawdogg · 03-20-2008, 11:07 AM

So what turbos are you running? Fuel? Ignition?

DCIV · 03-20-2008, 11:26 AM

well looks like he has dual fuel pumps and true evo's with headers.

Coop

lawdogg · 03-20-2008, 11:30 AM

Oh. Well, if the tune was good - ~11.3 AFRs, timing around 30 degrees advanced, with no knock, I'd say it's the adapter plates.

I guess the adapter plates might be why the turbos run out of breath so soon?

krazi · 03-20-2008, 12:21 PM

i dont have adapter plates i have aam tdo5 headers the adapter plates in my photobucket are old stuff for sale disregard them pics. i have true evoiii turbos. , aam headers, ips downpipe,

DCIV · 03-20-2008, 12:29 PM

make sure your plugs are gaped correctly and take it to a diff tuner. I knew it wasnt adaptor plates as your selling those.

Coop

lawdogg · 03-20-2008, 12:31 PM

Oh, my bad on the adapter plates. I hardly qualify as an experienced tuner, just trying to brainstorm.

krazi · 03-20-2008, 12:31 PM

yeah im gonna try to take it to ips but i am soooooo broke right now..lol this project took me to the hole. ill check the gap on them. But would that cause the turbos to start falling off at 5700rpm??