Project Eclipse, Rebuild and Renew Options

[JBone]

Correct me if I'm wrong, but didn't the srt-4 have a 2.4 with a 16g turbo? I never really heard complaints from people who had them. Great throttle response and a good starting point for massive upgrades. I remember driving a stock one and it having great off boost response.

[TotalEclipse97]

Update on parts:

brand new 3" downpipe is in the mail and hopefully this weekend i'll be picking up 950 injectors (thanks natedogg)

[awd4kicks]

I wish I had a 3" DP... I'm still running a 2.5"

[black92_tsi_awd]

I wish I had a 3" DP... I'm still running a 2.5"

hmmmm.....downpipe envy.

It's not the size of you downpipe but how you use it!

[ncgalant]

Update on parts:

brand new 3" downpipe is in the mail and hopefully this weekend i'll be picking up 950 injectors (thanks natedogg)

If you are planning on any street driving at all. Buy an EPROM ECU and either a chip or DSMLink. You WILL NOT get 950s to work with just a piggyback. You can get it to idle with them, and go WOT with them, but street driving won't happen without a better ECU solution.

[natedogg]

I wholeheartedly disagree with that statement. My 950's ran very well on just the MAFT. I expect they would do even better if using an SAFC in conjunction with the MAFT. I agree its not as versatile as a dsmlink or other standalone system, but my experience shows the 950's run fine with the MAFT.

[TotalEclipse97]

I know that i need to get some sort of setup that i can fine tune the car.

ncgalant - didn't you hook up your PDA to the car and tune it that way?....or am i just missing what you guys are talking about.

[black92_tsi_awd]

I've had Ncgalant tune my car....

He uses the PDA to log what your car is doing and then burns a EPROM from a laptop that plug into your ECU (obviously you have to have a EPROM ECU), then he re-logs your car and the fine tunes from there.

My car was a diferent animal after a couple chips. I then fine tuned using my MAFT at the track to suit conditions, boost, race gas, weather etc.

[ncgalant]

I know that i need to get some sort of setup that i can fine tune the car.

ncgalant - didn't you hook up your PDA to the car and tune it that way?....or am i just missing what you guys are talking about.

The PDA just reads what the ECU is seeing and doing. You then use the MAFT/SAFC to change what the ECU sees in order to make it do what you want it to do.

Very large injectors can be made to work with the stock ECU maps. The problem comes when you run low boost numbers with large injectors. To get a proper A/F ratio with 950s you will have to pull more than 50% of the airflow value to compensate. If you are flowing 40-50% more air than a factory car, then the numbers will line up at near stock values. If you run boost near the factory amount then the computer gets a low airflow/rev(load) value. This condition will increase your ignition timing advance and lower the number of degrees the ECU will retard timing upon seeing knock.

[TotalEclipse97]

so what would i need to cover all bases with tuning and still have a few dollars to spend on gas?

[natedogg]

It has less to do with how much boost you are running and more to do with airflow. 15 psi on a 14b is less airflow than 15 psi on an EvoIII 16G. I personally believe that if you run around 20 psi on an EVOIII 16G, the 950's will do fine for you on the MAFT because they did fine for me on my BR500 which surprisingly enough doesn't flow all that much more than an EvoIII 16G.

The MAFT adjusts global airflow input values to make the 950's act like 450's at idle and when driving around town. It also has the ability to tune idle, mid and WOT separately, and at different RPM points. Moving to the 950's you do lose some map resolution, but not enough to really notice plus this is still true to a lesser extent of a chipped Eprom or DSMlink. The only way to really get around all resolution loss is to go completely standalone, like an AEM.

I honestly don't think you will have any trouble running with just a MAFT if you want to keep it easy on the pocketbook.

[TotalEclipse97]

i just made a list of the internal stuff that i'll need for the car.

it's looking like i'll need to replace a few collapsed lifters, and a better clutch (currently a n ACT 2100).

the main problem right is getting it to start in the morning.

if i let the car sit for more than 2hrs (outside), the car will turn over but not fire enough to start up. this is ammended by spraying starter fluid into my intake.

my buddy and i havn't been able to track down the problem.

the fuel pump is good and strong, we replaced the fuel filter, we're getting great spark on the plugs, brand new battery (700CCA), running 93 octane, and we cleaned the injectors.........any thoughts?

[natedogg]

Could be a vacuum/boost leak. You might want to do a boost leak test.

Could be a fuel pressure regulator issue as well. I actually have an after-market adjustable FPR complete with fuel pressure guage if you're interested in that as well. Its a good thing to have if you have an aftermarket fuel pump that runs at a higher pressure.

[TotalEclipse97]

Oh and the timing is dead on.

My starter just died this morning so i'm going to get a replacement.

This weekend my buddy and i are going to replace all vacuum lines and search out the issue.

[black92_tsi_awd]

It won't start at all without starting fluid?

[scrapin_frame]

i was running 950's with my evo3 16g, 2g maf, and chipped eprom. it was pig rich til the boost came on

[TotalEclipse97]

no, it won't start (it will turn over) but it will not start if i let it cool down enough.

starter fluid (and some patience) tends to get her going once again.

[TotalEclipse97]

car is still having problems starting. finally got it tuned alittle better.

found a hole in my water pump....need a new one....dang.

[black92_tsi_awd]

Just picked up a pump from NAPA, under $50. Came with a gasket and oring for the water tube.

[TotalEclipse97]

i'm getting one at autozone this afternoon...thanks though

Autozone rewards cards are pretty nice.

5-6 purchases over $20 in under 6 months and you get $25 giftcard.

i think i'm at 4 in under a month....