Fastest stock turbo 1/4 times!

[Selz202]

I don't know him, but it's not very nice to accuse someone of lieing without proof...................:3d_frown:

I agree that it's a fast time, but I'm giving him the benefit of the doubt. He is undoubtedly a very skilled driver................lol

Did you see me accuse him of anything in my post?...

I was simply saying its hard to believe, he didnt even know the rear end he had in his car. Many people have upgraded turbos and simply dont know it.

Everyone who knows anything about the stock ct knows that anything over 16psi is out of its efficiency range. A lex afm on without 550s, that kinda tells me he doesnt know much about the cars... maybe he does and those are just fluke things, but we need him to elaborate for us to believe it.

 

[suprahero]

"my dyno sheet reads 10:1 at 20 psi and the a/f guage reads pig rich at full boost

walbro,lexus afm,440s,no afpr 20 psi not a problem"

1. Why would you attempt to boost 20psi on a stock turbo?

2. Why would you put a lex afm on without 550s?

3. Dying clutch?...

Im willing to bet that theres more that meets the eye... probably a upgraded ct...

Tim

You said it's probably an upgraded ct, but he clearly posted his time in the stock ct section. What you typed, may not read like you wanted it too, but you said theres more that meets the eye.......................:dunno:

It would still be a very good run even with an upgraded ct.............lol

 

[Selz202]

"Many people have upgraded turbos and simply dont know it."

 

[tonysupra]

Anyways, how would he raise fuel cut without bigger injectors with the lex afm?

 

[boost PSSH boost]

Guys, he's local to me. I can tell you right now, there's no bottle, there's no upgraded turbo, there's no internal mods. he runs just the lex afm and makes it work well. NOT the first guy I've seen making that setup run like a raped ape. He knows what he's doing, though some of his methods are "not conventional."

I was skeptical at first, I figured he was actually running a GE block or a 4.30 whenever I ran him on the street, but it's a GTE and a 3.91...

 

[lintlars]

12.52@115mph I have the vid but cannot find the time slip 60 trim LEX/550s

 

[Disced]

guys who are posting up times with upgraded CT's.. This isn't the right section.

This is for completely STOCK turbo; non upgraded.

 

[boost PSSH boost]

there's a second list up there for upgraded ones I will try and update the lists later tonight guys.

 

[Doward]

How cold was it out, on that 12.5 run?

 

[lintlars]

maybe 20 deg not to cold average afternoon up here.

 

[americanjebus]

there's a second list up there for upgraded ones I will try and update the lists later tonight guys.

what mods are you running to be doing a 13 sec 1/4 in an auto?

 

[lagged]

13.7 at 10 pounds of boost, street tires.

 

[JustAnotherVictim]

I'll let you guys know what I get when I'm done with my build.
Hoping for low 13's

 

[cadman]

*shakes head* Man, people in the 14s and 13s. I have my work cut out for me. I think there's really something wrong with my Supra then if it's only able to run a 15.6 at 87mph.

 

[lagged]

*shakes head* Man, people in the 14s and 13s. I have my work cut out for me. I think there's really something wrong with my Supra then if it's only able to run a 15.6 at 87mph.

yeah. completely stock i did a 14.9. with only minimal mods and 10 pounds of boost i was able to do 13.7. next time around im shooting for 12s.

do a compression test.

 

[cadman]

yeah. completely stock i did a 14.9. with only minimal mods and 10 pounds of boost i was able to do 13.7. next time around im shooting for 12s.

do a compression test.

Thank you for the stock time and your suggestion. That's what I needed is a time to shoot for. I knew my car wasn't going that good, and I knew it wasn't me.

This just confirms I have work to do. I'll let everyone know what I find this weekend, I plan to spend a little time on it.

 

[drjonez]

*shakes head* Man, people in the 14s and 13s. I have my work cut out for me. I think there's really something wrong with my Supra then if it's only able to run a 15.6 at 87mph.

your MPH is the real indicator. there is something wrong w/the car....

 

[cadman]

your MPH is the real indicator. there is something wrong w/the car....

*nod* For instance, in 2nd gear, the car would start out pulling strong, then fall off quickly as preasure built. I believe part of my problem is the stock pre-cat and down-pipe, with 146,000 miles on it. Add my Code 52, and a possible compression problem, and you get 15.6 at 87mph:3d_frown:

Thank you for the comments.

 

[drjonez]

or possibly a boost leak. sounds like you're on the right track....now get crackin!

 

[Doward]

Cadman, when my 3" elbow arrives, I'll be able to tell you if a clogged cat will cause the problem (it sounds like) you're describing.

For example, I can hold 10 psi of boost all day long @ part throttle, but if I go WOT, I back down to about 6-7 psi. I think my stock cats are maybe not totally clogged up - but backed up enough they are causing obscene amounts of backpressure in my exhaust!

It's really the only explanation I can come up with... I'm going to run another compression test, but the last one I did (about 5k miles ago) came up 155 across the board.

No codes, just a 17.8 @ 75.75 mph. I feel your pain, man :3d_frown: