25 replies to this topic

[brad850]

BoostedS70, on 29 December 2011 - 09:17 PM, said:

Did i say somthing wrong or give out some false information please tell me.

Pretty sure lucky's tunes are supposed to be used with the tcv/bcs.

[Hippicus Rebuildacus]

There are a few factors that go into interpreting boost. Idk what you have (I assume 98) and this doesnt have an actual boost pressure sensor... it uses MAF, throttle positioning sensor, and a few others to get a cumulative data then interpolates boost. Even if the tune is set for a 18psi CAP... if you have any bad sensors this can still put a damper on things because unless your running a MBC you arent at full boost any time your on throttle. See that your TCV isnt beat, clean your maf, check your throttle body (clean it too) and check any vacuum lines. Check the wastegate pre-tension as you should be right around 3.7. You can rent a vacuum pump from autozone / advanced autoparts and disconnect the pin arm pump the line up to 3.5 psi & tighten / lossen the rod until it falls onto the pin then tighten the lock nut. I wont get into perfect settings because everyone is different and the worse rule of thumb is # of turns... cause no one fuckin knows how much they are actually doing. I for example have a baller preset wastegate of 0psi. its a tough gig but someones gotta do it. I have full boost by 2700rpm & it runs like a boss. I dont know other people who have 0psi pre-tension on theirs and enjoy it as I do... different strokes for different folks

[SeedyRom]

Ash Filler, on 31 December 2011 - 06:47 PM, said:

There are a few factors that go into interpreting boost. Idk what you have (I assume 98) and this doesnt have an actual boost pressure sensor... it uses MAF, throttle positioning sensor, and a few others to get a cumulative data then interpolates boost. Even if the tune is set for a 18psi CAP... if you have any bad sensors this can still put a damper on things because unless your running a MBC you arent at full boost any time your on throttle. See that your TCV isnt beat, clean your maf, check your throttle body (clean it too) and check any vacuum lines. Check the wastegate pre-tension as you should be right around 3.7. You can rent a vacuum pump from autozone / advanced autoparts and disconnect the pin arm pump the line up to 3.5 psi & tighten / lossen the rod until it falls onto the pin then tighten the lock nut. I wont get into perfect settings because everyone is different and the worse rule of thumb is # of turns... cause no one fuckin knows how much they are actually doing. I for example have a baller preset wastegate of 0psi. its a tough gig but someones gotta do it. I have full boost by 2700rpm & it runs like a boss. I dont know other people who have 0psi pre-tension on theirs and enjoy it as I do... different strokes for different folks

For reference, I run 5psi at about 2700 rpms. At 3000 rpms I'm at about 10 psi. When I get to about 3200rpms, I'm at full boost (16psi). My pretension is about 4.2psi measured with an adjustment tool.

[Patric200]

Happy new year guys!!! My car comes on really late IMO.. it doesn't start boosting untill about 35-3600 RPM.. just a whole lot more lag than I expected... but I still don't think that it's right yet... as far as my baseline...

[lookforjoe]

Patric200, on 02 January 2012 - 02:00 AM, said:

Happy new year guys!!! My car comes on really late IMO.. it doesn't start boosting untill about 35-3600 RPM.. just a whole lot more lag than I expected... but I still don't think that it's right yet... as far as my baseline...

You should be seeing MAX boost by 3500



You'll have to check that your wastegate, not just the actuator - to be certain it's not stuck open, which will limit boost onset.

[pcguru000]

Yeah no worries about the glowing turbo, both my 850 and c70 have done that, its really something i think they all do- its just a matter of seeing them in the dark or low light.

As for the lag, Its something you can adjust to- after driving a bit youll know when or where you're power is gonna really kick in and its entirely possible with the 5 speed to change gears quickly and accurately enough that the turbo lag is almost non existent when arriving in that next gear.

Also you could probably squeeze a bit more out of it, granted it really is just a "bit"- I have the RICA 19psi tune in mine, been meaning to get it dyno'd but according to the previous owner it was making something like 302hp.

Def shift before or near 6k though- seems the power boils off about then.