Turbo tuning solutions?

[qsiguy]

I haven't found anyone that's installed a turbo on their Q but I am concidering it. STS Turbo ( http://www.ststurbo.com ) has a rear mounted setup that would take the place of the rear muffler on the Q. Although they don't have a package specifically for the Q they can supply a universal package that will take care of most of the needs. My question is what's the best or recommended method of tuning to readjust the fuel mixture to compensate for the additional air. I've seen the Jim Wolf ECU mentioned. Will this allow me to make the necessary adjustments? If so, where can you get this and how much should I expect to pay? The STS basic setup will give me 5-8psi of boost. Also need to know if larger injectors may be needed. Anyone have any info on this subject? I have seen the Q motor used in other vehicles where turbos were installed, just not on the Q.

What do you all think?

qsiguy'94 Q45
Modified by qsiguy at 2:55 PM 11/15/2005

[Rex]

450zxtt has a twin turbo VH45DE, but it's in a Z32 (300ZX). So, it's been done. Some one has the maps somewhere.

IIRC, the injectors are good to ~450hp, based on there max flow values, so I think you cna run the stock (in good operating condition) injectors.

[elwesso]

JWT boost map is ready to go.....

[qsiguy]

What does that mean "JWT boost map is ready to go..." I'm new to ECU tuning. Can someone explain it to me briefly? I've played with OBD2 stuff a little as a friend has software on his laptop for it but not sure what I'd need to do on the older stuff.

qsiguy

[elwesso]

JWT= Jim wolfe technology

They make a boost ECU for the Q.

[Jeff Williams]

I would install it with the stock ECU. It should be able to handle 5# of boost with the stock injectors and MAF (just my opinion - no experience YET).

[GRADEST]

Kenne Bell makes superchargers and other components. He makes a product called a boost- a- pump. This controller adjusts the voltage to the fuel pump based on a booost or vacuum reference. Increase fuel press., increase fuel volume------ its simple and it works. I like the remote turbo too. This would take care of the fuel enrichment . Any one have an idea for the spark mapping. Is there some kind of piggy back controller that would work. Also, does anyone know how well the q45 mass air meter works in a blow-thru application? I wouldnt want to relocate my air meter to the rear also!

[elwesso]

Yep as long as you put the MAF on the pressure side......

[PoorManQ45]

God damnit, this is at least the 4th time this same EXACT discussion has been had.

[elwesso]

I cant believe you actually said that.

[PoorManQ45]

I know right.

[RobertsnewQ]

Email me I can do it.

Easy change to the ECU.

[elwesso]

Email me I can do it.

Easy change to the ECU.

[heywier427]

im interested in this setup how did you get the info from the website

[qsiguy]

what info are you referring to?

[elwesso]

Good luck at getting the tubing up into the engine bay.

[qsiguy]

Ya, haven't worked all that out yet, still debating spending $3K for the kit. Did just speak with a tech at Jim Wolf about the ECU. Sounds like a no brainer, just fork over the $595. MAF and injectors he agreed, should be fine as long as I don't go over 6-8 PSI. Over that he wasn't sure. He only knew of one person who put a supercharger on a Q but no turbo's. I think I need to be the Pioneer and get-er-done!

[Q45CALIBER]

Good luck at getting the tubing up into the engine bay.

Remote Turbo may be better in that case

[WDRacing]

There's always a simple FMU or RRFPR. Perhaps a tad retard of the base timing by 2 degree's and you should be more then fine for fuel. Aslong as you never go more then 8-9 psi, so the fuel line/rail pressures don't get to high while you're on boost. FMU is WAY cheaper then the JWT ECU rom tune.

WD

[elwesso]

unless you have the extra super special NICO ecu hook up for the Q.....

Stay tuned!

[qsiguy]

HEY! No holdin out on us, hook us up!

[elwesso]

HEY! No holdin out on us, hook us up!

Im testing the ECU right now... will post more information on its effectiveness later this week.

[Rex]

Im testing the ECU right now... will post more information on its effectiveness later this week.

Weather permitting , and would the excessively cold air possibly impact the results of your butt dyno?

[elwesso]

We'll find out, next week its supposed to be around 45ish, where it has been as of recent.

[Q45CALIBER]

There's always a simple FMU or RRFPR. Perhaps a tad retard of the base timing by 2 degree's and you should be more then fine for fuel. Aslong as you never go more then 8-9 psi, so the fuel line/rail pressures don't get to high while you're on boost. FMU is WAY cheaper then the JWT ECU rom tune.

WD

Please excuse but I am trying to keep up here what is FMU and RRFPR?

[Q45CALIBER]

Please excuse but I am trying to keep up here what is FMU and RRFPR?

I Got It....FMU is generally referring to a Rising Rate Fuel Pressure Regulator(RRFPR).

[WDRacing]

Exactly, you can change how much the fuel pressure goes up by swapping out the internal rubber chingus. If you have a 12:1 chingus and you're running pig rich, just swap in a 10:1 chingus. Easy and works well for guys running a low amount of boost.

WD

[GRADEST]

That wasnt very nice. That is the easy part, besides a co. called Dr. Gas in sandy utah that makes all kinds of oval nascar tubing and crazy bends and like oval to round adapters etc. Healso makes these killer x-pipes and they work good. I had one on my 5.0 they create avery unique almost high pitched note and very smooth. I congradulate turbo man . You can do it . You are turbo man. DO it Do it. DO it I wouldnt count on jim wolfs tune . You could have it tuned on a local dyno by a local tuner and come up from the safe side of power and probably be much happier. Plus then you could get a tune for 91 octane and a tune for race gas and you have recorded settings for both. Any one who puts boost in theyre car needs accurate real time o2 monitoring during tuning.

[fjirousek]

I thought there was a thread somewhere about a twin turbo kit from Japan. Does anyone have any detailed info on that?

[jamesmost]

I thought there was a thread somewhere about a twin turbo kit from Japan. Does anyone have any detailed info on that?

my friend is friends w/ the owner of HKS or one of those companies he had a TTQ back in the late 90's in Japan