Lots of mods... not that fast

My AHU has the following mods:

>Hybrid K03/04
>PP 520 nozzles
>RC 3+ chip
>Ported/polished head
>Match ported intake manifold
>ARP studs
>3" exhaust
>Front mount intercooler

The issue is - It just doesnt seem that fast. It does go and pulls good but I feel like it should be pulling the wheel away from me like my Corrado does.

Is there a test or measuing blocks I can log so I could get some feedback?

Thanks!

i suppose you might start with boost 011 code on vagcom . dont know what that turbo,s max sustained boost should be but first thing id check is if you arnt losing any pressure anywhere .

sorry, I posted under a old username.

The car shows about 22 psi spike. Settles at about 19

My EGTs pretrubo show about 10-1200 F

i would think 22-25 sustained should be about right boost seems low

It makes whatever the ECU calls for now. i dont have a bosst controller on it

EGTs are too low. Should be able to hit 1500*F with a good 3rd gear pull, 4th too.

What engine is in the corrado?

Bob_Fout said:

EGTs are too low. Should be able to hit 1500*F with a good 3rd gear pull, 4th too.

What engine is in the corrado?

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Judging for the screen name and sig I would say a G60 drivetrain with a turbo conversion which depending on the turbo, headwork and fueling is good for roughly 180-230 whp with 150-210 wtq.


I drive a TDI Corrado and I can tell you that the Mk3 is a heavier car that is nowhere near as much fun to drive as the corrado. I suggest you yank the g60 drivetrain out and swap in your TDI setup. You will then think it rips very nicely. I just finished a mk3 TDI Golf and it has nozzels, larger IP pump, 2.5" exhaust and it was not as fast as my corrado that only has nozzels, intake manifold, IC pipes, 2.25" exhaust and a fuel pump.

I remember that Jeff would tell people to log 2 measuring blocks to get a better idea of what to change in the chip. I need to call him to get his expert opinion.

Dont get me wrong, the car is quick. Its not blazing fast, but it moves. I just can't help but thinking all that smoke is wasted power.

Yeah if your EGTs are that low, sounds like you're underfueling. Guessing you have no visible smoke under WOT?

Wait a sec, you say "all that smoke is wasted power"? So you have lots of smoke and under 1200 EGTs? Doesn't add up.

I totally agree with Shizzler! you need some PP764's and a good tune to bring that sucker / blower alive

Im running PP520s and Im making some good amounts of smoke. Doesnt overfueling cause low EGTs?

yep thats your problem small nozzles i missed that in your list of mods . you have allot more air going through but not enough fuel to burn it . pp 764 or race 520s then you will not need to upgrade again.
i,ll be running a bigger 17 turbo with pp520s which will run well but im under no illusiuons that the pp764s will unleash more of the full potential when i get the cash

onlyn8v said:

Im running PP520s and Im making some good amounts of smoke. Doesnt overfueling cause low EGTs?

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Ok!! how much boost pressure are you running / power torque produced and which tune do you have cheers.

onlyn8v said:

Im running PP520s and Im making some good amounts of smoke. Doesnt overfueling cause low EGTs?

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You should get some pass numbers to judge how "fast" you are going. When I first put in a modded chip in mine, I shaved off a couple seconds...then, after I added larger nozzles and the hybrid turbo and the rc3 chip, I gained some boost (though still trying to get those last couple pounds expected). I haven't timed my 0-60 since, but I think I can get better than the 7.5 second with just the chip. My rolling torque definitely increased, and I did a dyno that showed large torque gains but horsepower not as much, etc. I make a lot of smoke...still need to track down why exactly.

I'd like to get my head redone given how gunked up it was when I looked in it some years ago, not sure how much faster that would make me, but definitely more efficiently burning fuel I'd think.

Get a camera, tape your runs...find a favorite turnpike entrance, pull over and find an empty space, then run her to 70 or wherever...fun fun.

The mods are (Im the OP)
>Hybrid K03/04
>PP 520 nozzles
>RC 3+ chip
>Ported/polished head
>Match ported intake manifold
>ARP studs
>3" exhaust
>Front mount intercooler

I get spikes to 22 psi and settle at 19

It smokes considerably but it seems to me to be more of a sand colored smoke and not thick black. The turbo is BRAND NEW and all the mods listed are all newer than 5k miles.

To me- it would seem that I would get alot of smoke if there is too much fuel. Too much boost would make the smoke disappear wouldnt it?

yes thats correct more smoke is overfueling but if the smoke is fuel its thick black smoke .

I see on another car, hybrid K03/04 spool at 3000-3500rpm, is bad turbo!
A good hybrid K03/04 spool between 1900rpm min and 2400rpm max.
After, is a ajustement of ratio between air/fuel with chip.
I put 100-105 wheel hp on road with out smoke and aprox 120 wheel hp with lot of smoke on my AHU, Hybrid K03/04 at 22psi.


Dieseleux

I get full boost well before 2000 rpm so Im not sure where you get the 300-3500 rpm from.

Im going to video tape it I guess and post it up.

Well it's good you are getting some responses on this Dave. Like I told you before. I'm not "feeling it" either with the similar setup. I know she's a fatty, but till we go bigger than the k03/k04 I think we are gonna stay at a disadvantage (or you need to lose some weight).

-Your setup sounds a bit better than Athreetdi's (with your head/IC allowing cooler air) but he could make it rip. Maybe the PP520's are a big difference. Joe also sounds like a great driver (not saying you aren't, I know I'm not!)

160 hp or less: Stock pump, PP502s/764s, hybrid turbo, nice tune, downpipe--that's pretty much what Joe did and was getting mid 14s in the quarter mile

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Get a 3bar map so you can ask for the 22-23 sustained. (i think 23psi is at the 3bar range) Also get us a log of your boost(block 11, 3rd gear from 1500rpm to redline), lets see what it's doing.

I also wonder if it's the turbo's actuator. More and more, I find people saying check that actuator. I've gotta go do that, I just assumed it was set. I've been getting a some limp modes lately, and a bit of lag. Anyone have an idea of how many hg's for us at sea level? 10hg?

Here's my similar thread

k03/k04
pp764
b4 downpipe
magnaflow cat
alligator chip with 21 sustained max boost.
stock IC, intake, still got mufflers at the moment. (getting a custom intake from whitbread soon and gonna do a mufflerectomy)

Obviously I'm heavier but who cares bout that!

onlyn8v said:

The mods are (Im the OP)
>Hybrid K03/04
>PP 520 nozzles
>RC 3+ chip
>Ported/polished head
>Match ported intake manifold
>ARP studs
>3" exhaust
>Front mount intercooler

I get spikes to 22 psi and settle at 19

It smokes considerably but it seems to me to be more of a sand colored smoke and not thick black. The turbo is BRAND NEW and all the mods listed are all newer than 5k miles.

To me- it would seem that I would get alot of smoke if there is too much fuel. Too much boost would make the smoke disappear wouldnt it?

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It sounds that your PP520's are max'd out and why they are smoking is because the injection window has been lengthed too much with these nozzles............best to use some larger holes with shorter window = less than standard if necessary..........who has mapped your car....................yes a 3bar map sensor is a good idea!!

Yeah good question, who is doing the mapping on this beast? Mojo's theory of too long an injection window is quite plausible. But I would still expect higher EGTs if they are maxed out.

Yes, overfueling can cause low EGTs, but you have to get pretty extreme before this happens (note the incrediblely dark plumes eminating from truck/tractor pullers, etc, who are still not overly rich for max power).

First.....you may not be moving enough air mass. The k series turbos are not large enough to move very large amount of air, so you fueling seems too much. Perhaps it is, but I suspect that if you had the correct turbo in place...the smoke would be a non issue. So....either reduce fueling so tat the car doesnt choke up, or open the breathing so the car doesn choke up.

the sad thing is, Dave and I are under the impression, a better intercooler (him), high flow cat (me), a ported head intake (him) a downpipe (me) 3"straight pie (him) would mean opening up the breathing... Still choking!

It's the turbo. If you want fast, I'm convinced gotta go way past just the k03/k04. I say GT18V since I'd like to stay WG, or have Whitbread make the GT2062 work!!. Or you can go with the 17/22 like Chris.

ALl the other breathing mods are the right thing to do. I suspect that the turbo you have isnt enough....though I dont see why you couldnt run a properly sized wastegate turbo. The issue has always been that no one was willing to test them till they find one that works well. Its expensive and time consuming, but worth it if the turbo is a winner.

log voltage of pump at WOT 1500 to 4500rpm....


Dieseleux

Hi Dave,
Your setup should be delivering about 140hp. If its smoking, it needs more air, bigger intake, thru exhaust, and fmic.

If you want more power, get bigger vnt turbo, and RC4 or 5. I would be glad to set up an appointment to visit and test some big power in your car.

I am testing RC6 in my boys car and will dyno soon as I heal up and can work again.

Jeff

here is my boys A3 with stock IC, and muffler (1749vb/pp520) all else stock, 98deg day. http://rocketchip.com/coppermine/albums/userpics/10001/Jeffs_A3_1749_pp520_RC4_10mm.gif

mojogoes said:

It sounds that your PP520's are max'd out and why they are smoking is because the injection window has been lengthed too much with these nozzles............best to use some larger holes with shorter window = less than standard if necessary..........who has mapped your car....................yes a 3bar map sensor is a good idea!!

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Or his nozzles are spraying at random pressures causing 8 incorrect injection events hence the smoke.

jsrmonster said:

Hi Dave,
Your setup should be delivering about 140hp. If its smoking, it needs more air, bigger intake, thru exhaust, and fmic.

If you want more power, get bigger vnt turbo, and RC4 or 5. I would be glad to set up an appointment to visit and test some big power in your car.

Click to expand...

Hey Jeff- I would love for you to look at this thing. Im also running an open element air filter (there was no room for piping)

When I wanted to run my .48 T3/t4 from the Corrado I was willing to do the work but I couldnt get any info as to if it would even spool. I kinda wish I saved my $800 now and just ran that. I even had an external wastegate on it This is my second hybrid and if this goes is good old Garrett time I think.

I updated the mods list above so everyone can get a better idea.

The mods are (Im the OP)
>Hybrid K03/04
>PP 520 nozzles- Installed and pop tested by lubrication specialist
>Rocket Chip 3+ chip
>Ported/polished head
>Match ported intake manifold
>ARP studs
>3" exhaust- all mandrel bent, straight through, no cat, bullet muffler
>Front mount intercooler
>Open element intake

No one is addressing the fact that your EGTs are under 1200 degrees. This leads me to either questions your gauge/probe, or agree with drivbiwire.

You have lots of breathing mods. If its smoking due to being at the limit of your current fueling, it shouldn't feel slow. Unless your tolrance is really skewed...

Do you have a scan gauge or anyway to monitor IATs?

Are you injectors and nozzles functioning correctly? I had mine done and it was a night and day differance. I will never just install nozzles again.
They need to be balanced and calibrated so they spray at same rate
and spray properly. Some could be faulty from the start
how can you tell without getting this done. Your car could still run but be weaker, more niosey, smoked.etc