Getting Dynoed, Lexus Question

[staticpat]

I'm hitting fuel cut at my wastegate's lowest setting, so off to the dyno to get tuned. I'm not running 550s, just an upgraded fuel pump and AFPR to bump up my pressure. I just don't want to run lean on the way to the dyno. I read somewhere that if I don't WOT then the ECU will steal read off the O2 sensor and I won't detonate. Just want to confirm. Otherwise I'll just install the Lexus in the dyno parking lot.

Also just to double check, I re-use my stock electronics not the Lexus electronics, correct?

 

[boost fiend]

iirc, yes. use the stock electronics, not the lexus. but then again, ive heard of people using the lexus electronics with no issues.

time for more research.

 

[Jeff Lange]

Lexus and stock electronics = same.

 

[staticpat]

Thanks Jeff, then I'll probably just swap out AFMs at the dyno.

 

[boost fiend]

wow, look at jeff, the one with all the answers.

hew jeff, dont you have any other hobbies becides the supra? lol j/k

 

[Jeff Lange]

Yeah, my AE86.

 

[staticpat]

Well back from the dyno, still hitting fuel cut at about 16psi. It doesn't matter though because my clutch slips that high anyway. Put down 347hp at 15 psi.

For anyone wondering I didn't run out of fuel with the 440s. Just bumped up the fuel pressure to about 40psi and it was fine. At first my A/F ratio was lean off the scale. So if your properly tuned with the Lexus AFM, no need for 550s as long as your fuel system is adequate.

 

[westonboege]

nice numbers... im getting ready to go to the dyno soon... almost same setup as you... good job..

 

[isnms]

Congrats, That is nice numbers :bigthumb:

Q: What is your turbo?
all your posts and your vBPicGallery just say upgraded ct-26

 

[staticpat]

I just got it rebuilt/upgraded by a local shop called BNR Supercars. It's a hybrid with a stage 3 garrett impeller, and he clipped the exhaust 12 degrees. He works on the CT-26s pretty often so he worked out a good combination for my power goals. Don't know the exact trim size but I think its close to the 60 trim. Needless to say I'm pretty happy with it as I made over 300rwhp at 10psi (lowest wastegate setting).

 

[bigal0043]

what are ur other mods?

 

[staticpat]

Supporting fuel mods of course. Got 3" turbo elbow, downpipe, exhaust, 3" IC pipes, bigaaron IC. Thats major ones, rest listed in my little vbpic gallery.

 

[chevyeater]

Good dyno results and glad you had it properly tuned. You could still use the 550s though. That would take care of your fuel cut at 16 psi.

 

[91T breezen']

Well back from the dyno, still hitting fuel cut at about 16psi. It doesn't matter though because my clutch slips that high anyway. Put down 347hp at 15 psi.

For anyone wondering I didn't run out of fuel with the 440s. Just bumped up the fuel pressure to about 40psi and it was fine. At first my A/F ratio was lean off the scale. So if your properly tuned with the Lexus AFM, no need for 550s as long as your fuel system is adequate.

Very good numbers! :icon_surp I can't wait to get mine on the rollers soon!:icon_bigg Were you running the Lex or not? I'm also .57 Trim, stock inj./Aeromotive Vfpr, Lex maf.

 

[suprahero]

Great job Staticpat!!!!!Did you go to Trussville to get dynod? Brian at BNR is the one who made my Garret to4e. He seems to be pretty knowledgeable about turbos. He builds rx7's pretty strong. Now maybe you can come out to Bama and do some mustang killing with me. See you soon.

 

[staticpat]

Yeah I went down to BNR on your reccomendation. And got dynoed at Walker in Trussville. Its something I've been meaning to do forever. The car runs great now (save some leaky valve cover gaskets) so I'll start driving it now. Blake actually told me to go try and race some Z06s

 

[suprahero]

If you need some valve cover gaskets, I have a set that isn't even a month old. I put new ones on when I did my head gasket rebuild, but had just put the other ones on to stop an oil leak a month earlier. You can have them if you want them. Free, no charge, nada, zero, no finance charge, no interest.
I hope everyone has a great easter. Hope everyone makes it to their families and back safely...........lol