Q&A with Trevor!

[Trevor]

Originally Posted by Multiades

I just noticed that your dyno sheet is with ZERO smoothing. Your car purrs like a kitten.

Hehehe...you're observant.

I could have tuned out that hiccup at 5400 but that was my last pull and the only one I made at that boost level.

I'm not BS'ing about my car pulling smoothly without an ignition amp.

[stealthtwin69]

hey trevor maybe you can help me out....my car seems to be making alot of power but at the track i can only manage a 13.3 at 108mph..with all my mods i figured i could have run better...granted my 60ft time is a 2.0 what do you think i could do to make it faster..i have been running 110 leaded on those runs with 20lbs of boost..no knock..except 3 random counts, on the street i seem to be a monster but i just cant seem to pull mid 12's to low 12's like i figured..considering people have runs faster times with stock turbos and mods similiar to mine..just wondering if you could give me some insight..thanks

[mjannusch]

Originally Posted by stealthtwin69

my car seems to be making alot of power but at the track i can only manage a 13.3 at 108mph..

Post a complete timeslip.

[stealthtwin69]

i will later..not at home with the car

[VR4neophyte]

Originally Posted by stealthtwin69

my car seems to be making alot of power but at the track i can only manage a 13.3 at 108mph..with all my mods i figured i could have run better...granted my 60ft time is a 2.0 what do you think i could do to make it faster..i have been running 110 leaded on those runs with 20lbs of boost..no knock..except 3 random counts, on the street i seem to be a monster but i just cant seem to pull mid 12's to low 12's like i figured..considering people have runs faster times with stock turbos and mods similiar to mine..just wondering if you could give me some insight..thanks

Describe your launch technique. Agree that your mods at 20 psi should be able to do better.

[mjannusch]

Originally Posted by VR4neophyte

Describe your launch technique. Agree that your mods at 20 psi should be able to do better.

108 trap with a strong launch and quick shifting should get you in the mid 12's somewhere. Your launch is probably costing you around a half second at the end of the track, maybe more. Fix that to a 1.7 and you'd probably get around 12.6 - 12.7 with the same trap or slightly higher. Might also want to look at your shift points for each gear.

[DJAuggie]

You should be no where near 108 with 20PSI.

[Internexus]

Originally Posted by stealthtwin69

hey trevor maybe you can help me out....my car seems to be making alot of power but at the track i can only manage a 13.3 at 108mph..with all my mods i figured i could have run better...granted my 60ft time is a 2.0 what do you think i could do to make it faster..i have been running 110 leaded on those runs with 20lbs of boost..no knock..except 3 random counts, on the street i seem to be a monster but i just cant seem to pull mid 12's to low 12's like i figured..considering people have runs faster times with stock turbos and mods similiar to mine..just wondering if you could give me some insight..thanks

Wow didn't know my car had a twin Just keep fighting it, it only requires around 23psi a ton of mods, and some nitrous to finally clip an 11 I sure hope this set of guys has a solution to this.

[VR4neophyte]

I'd like to see a WOT log with RPM, TPS, PSI, AFR (WB), NBO2, and EGT.

[Trevor]

Originally Posted by stealthtwin69

hey trevor maybe you can help me out....my car seems to be making alot of power but at the track i can only manage a 13.3 at 108mph..with all my mods i figured i could have run better...granted my 60ft time is a 2.0 what do you think i could do to make it faster..i have been running 110 leaded on those runs with 20lbs of boost..no knock..except 3 random counts, on the street i seem to be a monster but i just cant seem to pull mid 12's to low 12's like i figured..considering people have runs faster times with stock turbos and mods similiar to mine..just wondering if you could give me some insight..thanks

Of course you've already got some help. Everything the guys have replied with is spot on. Answer their questions and they may have guidance for you.

Things that jump out at me:
- 110 leaded : all the stuff in that octane range is designed for for bracket racing V-8's. My car always ran like poo on it. No knock...but it wasn't responsive or even all that powerful. Find some VP C16. It's very high octane but besides it being a hair more heasitant to start you really can't tell its in there while behind the wheel. The car will stay decently peppy and you can run a buttload of boost without knock.
- Is your base timing correct? If you don't know for sure then verify it.
- On the same lines is your cam timing spot on?
- What AFR have you been tuning to? I've had good results at 12.3 (+/- 0.2) on C16.