aLmk's Turbo FA5

[PetefromtheStreets]

Well I didn't just discover this noise, it's been going on over a year.

I raced on it two weeks ago with the same noise I have a spare bare block if the worst happens.

Oh gotcha it's not a new noise. Well that's how I felt when I last went to the track 2 weeks ago. I have my built Motor back so I was going to really turn it up but the trans started giving me a issue and broke something before I could.


s4 IG-petefromthestreets

[Lilwhit14]

How many psi are you running on new setup?

[aLmk]

How many psi are you running on new setup?

At most on the street like ~16 psi in 4th, which is ironically slightly less than the previous setup, which in the summer was running around 17 psi, but I'm making just about 100whp more with this one.

[Lilwhit14]

So you are making how much on 16 psi on pump? All the graphs confused me. Lol

[aLmk]

So you are making how much on 16 psi on pump? All the graphs confused me. Lol

About 450.

[aLmk]

I just got home from Cecil. Only could make one pass, pretty disappointed about that. So many people there and so many break downs.... Waited like 2 hours in line and then I ran a ducking 12.044 at 119 :cornmad: that was hitting the limiter in second and not power shifting. I definitely would have done 11s if I had even just not hit the limiter. O well learned my lesson, back to going on Wednesdays when serious racers and less people go.

[Si Speed 317]

I just got home from Cecil. Only could make one pass, pretty disappointed about that. So many people there and so many break downs.... Waited like 2 hours in line and then I ran a ducking 12.044 at 119 :cornmad: that was hitting the limiter in second and not power shifting. I definitely would have done 11s if I had even just not hit the limiter. O well learned my lesson, stock to going on Wednesdays when serious racers and less people go.

Ah, it happens. Powershifting may not be as necessary, butbdo you have any vids? How'd you launch, what tires? Burnout in box or out? Details!

[aLmk]

Ah, it happens. Powershifting may not be as necessary, butbdo you have any vids? How'd you launch, what tires? Burnout in box or out? Details!

Vit told me he lost ~.2 sec ET by powershifting. Unfortunately no video of me, I want to get a go-pro. For tires I was using 24.5'' M&H racemaster slicks. I drove through the water box and did my burnout with the front wheels past the water box; this let me pull a 1.72 60'.

[aLmk]

Well compression and leakdown came back OK. But he said he feels the noise is definitely something in the bottom end, like either piston slap, or a wrist pin going bad. He says he doubts it's a bearing as I would likely be experiencing oil pressure issues. He said he thinks the noise is worse than the last time he heard it, which was in August or so. He said the next thing to truly do is to tear down the motor and see what's going on :sadbanana: :think:

[boosted_teg]

power shifting will keep the boost from dropping between shifts. I tried and checked my datalogs before. from 3-4 gear not letting off the gas, i dropped from 18 psi to 17psi. Previous run not power shifting, 18 to 9psi. It does work, however its bad on our transmissions :P