recommended boost for tdo6 20g and ross 9.0:1 pistons and pump gas

NJdsmguru · 10-18-2004, 10:15 PM

I just installed my new built motor consisting of eagle h beam rods, ross 9.0:1 forged pistons, b-shafts removed,arp's, mildly ported head, web cams 546/547, td06 20g, spearco top-bottom flow fmic, Fic 650cc's ,2g mas, afc, walbro 255, ngk br7es plugs, HRC 3" 02 housing,tial 38mm external, Full 3' turboback,MSD DIS 2, ported 2g manifold,magnecore wires........I have all my fuel trims dialed in and i need to know whats a safe boost level to run a td06 20g on 93 octane?

GunnerTSi · 10-19-2004, 10:14 AM

You've got enough fuel where you could feasably run 20-22 psi on pump gas safely. You might have to play around with timing to ensure that it doesn't knock. No matter what you run it'll take some fine tuning.

Eagle_Summit · 10-19-2004, 11:53 AM

You should be able to run a bit more than 20psi on pump id say. You have plenty of supporting mods on that setup to probably run about 25 id say. Im not very fond with the 20g's though more of the 50trims. But you should be able to stay in the 20's on pump, and if you fine tune, im sure you can run 25 no problem.

xxconvict · 10-19-2004, 01:27 PM

that 20g is one sexy turbo isnt it? LoL, anyway, i run a very similar set up and my street low street boost is 16psi and i can take it up to about 25psi like that other dude said on pump gas, actually i do it on 91 and sometimes 92 (damn california emissions!) aaahhhh *drool* 25 psi aahhh lol, yea dude take itup. you shit should be fine and go fast as hell. later

LandoAWD · 10-19-2004, 02:18 PM

Start at a lower boost than you want to run, log a few pulls and get the knock sum as close to 0 as possible...or better yet AT 0. Then, crank it up a couple of PSI and log some more.

slowAWDTSi · 10-19-2004, 09:30 PM

Ive got a very similar setup and Ive ran 22psi all day long with it. Oh man FWD busting loose in 3rd gear while rolling into it is sweet. Not to mention dangerous when it first starts doing it while passing someone. :eek: Just make sure you gots some decent tires.

jasonlee · 10-25-2004, 11:16 PM

now im a bit nervous...lol.. i have a 20g with fuel upgrades but stock internals... pushin 21 or so psi on a 6 bolt with stock internals...

so far so good.... but it runs so hot the mani glows most of the time, gotta idle it down everytime i shut it off

slowAWDTSi · 10-26-2004, 04:59 PM

Quote:

Originally Posted by jasonlee

now im a bit nervous...lol.. i have a 20g with fuel upgrades but stock internals... pushin 21 or so psi on a 6 bolt with stock internals...

so far so good.... but it runs so hot the mani glows most of the time, gotta idle it down everytime i shut it off

Hmm Glowing mani you say? Ive herd of a couple things that can cause that. Either unburnt fuel is igniting in the manifold and burning or you have some sort of restriction in the exaust flow. (like cat cloged up or poor flow out of the turbine housing) What kind of exaust mani and system are you running?

sweet97 · 11-26-2004, 04:28 AM

My manifold is often glowing after running hard, normal as I have had it with other turbo cars though I do run on the rich side. 2.5" mandrel, no cat 50 trim. Mark

1fast97gsx · 11-26-2004, 12:49 PM

Quote:

Originally Posted by xxconvict

that 20g is one sexy turbo isnt it? LoL, anyway, i run a very similar set up and my street low street boost is 16psi and i can take it up to about 25psi like that other dude said on pump gas, actually i do it on 91 and sometimes 92 (damn california emissions!) aaahhhh *drool* 25 psi aahhh lol, yea dude take itup. you shit should be fine and go fast as hell. later

keep in mind he's running a 9:1 compression. My new motor is at 9:1 as well and if I had a 20g I'd be looking at around 23 psi safely on 93 ... maybe 24. Look into alcohol injection and turn it up to 30!

bad71camaro · 11-29-2004, 06:47 PM

Quote:

Originally Posted by NJdsmguru

I just installed my new built motor consisting of eagle h beam rods, ross 9.0:1 forged pistons, b-shafts removed,arp's, mildly ported head, web cams 546/547, td06 20g, spearco top-bottom flow fmic, Fic 650cc's ,2g mas, afc, walbro 255, ngk br7es plugs, HRC 3" 02 housing,tial 38mm external, Full 3' turboback,MSD DIS 2, ported 2g manifold,magnecore wires........I have all my fuel trims dialed in and i need to know whats a safe boost level to run a td06 20g on 93 octane?

I have the same set up but have 550s but plan on going to 650cc before I get It tuned. What im wondering is what kind of boost can I run on race gas. Oh but I dont have a built motor. Well it got 1g rods 2g pistons arp harwardware and a adjusa head gasket

sweet97 · 11-29-2004, 07:15 PM

Look into the scanmaster by www.fullthrottlespeed.com.
It allows you to monitor engine data in real time while you are driving. 02's, knock, timig etc. Of course there are no guarantees on the engine internals but knowing the data will help. i ran 22 PSI on my EVO. Have not gotten the 50 trim tuned yet but probably won't push it much more due to the 109K mile motor. mark