Brice_Brice

Any idea what the turnaround time is to get those ECUs back? Im not too skilled in soldering and desoldering.

also I bought this walbro kit a couple weeks back. I dont see the fuel sock attached and dont know what the technical name for it is. would it be included in here?

http://cgi.ebay.com/ebaymotors/Walbr...ayphotohosting

RotaryRocket88

iTrader: (7)

Right, but you also lose power when not in boost (excessively rich). Off-boost, partial throttle will bog a little, and idle will be rough. No matter what AFR I tuned the idle for w/ the variable resistor, the ECU had to reduce the injector duty cycles so low that it was missing every few seconds.

If he isn't looking to push more than stockish boost (which he shouldn't on stock injectors), then there's no sense suffering through the downsides of using a walbro without an aftermarket FPR. The FD pump is good to about 300 whp, so it still gives you plenty of room to grow later on as well.

The Supra TT pump is an option too I supposed, but they're about $220 new, and draw a hell of a lot of current (~16A). But, they supposedly don't overwhelm stock FPRs at low manifold pressures.

RotaryRocket88

iTrader: (7)

It'll be in the bag with the instructions. I can just barely see it in that pic.

Pocketlogger's turn around is pretty good. I think I read on their site they aim for next day turn around times, or so.

ITSWILL

iTrader: (12)

they got my rtek back to me the same week I sent it to them.


In all honesty, you dont need another fuel pump if you aren't going to boost any higher.

If you are going to boost higher I would get the FD pump and the rtek1.5 ( possibly the 1.7 and a set of 720s). That would be the right way to do it.

For now ( if you can keep the boost down) I would run your stock pump and the rtek 1.5.

Brice_Brice

Since I already got a walbro, Ill try that on, if my idle is rough and i see problems at low rpms ill change in an FD pump. Ill see what boost levels I can get around when I do the port. If its still high ill run the other pump. Thanks for the info.

Did you keep the stock blowoff valve? Ive heard of having to replace it in some cars due to turbo surge.

ITSWILL

iTrader: (12)

as far as I can tell the stock bov is fine.

I have never had any problem with a walbro 255 as far as idle or bog and I have had 3 of them, maybe I just got lucky, both cars with the 255s burn rich until I'm in boost though.

Also like I said before, the fuel pump really isn't going to do you any good without some sort of FCD. If your not boosting any more than stock what do you need another fuel pump for??? If you are boosting more than stock your just gunna hit the fuel cut.

Get the rtek and run that with the walbro and you should be fine.

RotaryRocket88

iTrader: (7)

My BOV is stock, and I haven't had any compressor surge issues running as much as 12 psi.

ITSWILL

iTrader: (12)

And why would you think of even needing another bov if you don't plan on boosting past stock levels. Man you are confusing me.

Brice_Brice

Because the reason for my questions are because my setup currently has higher than stock boost levels

RotaryRocket88

iTrader: (7)

You're thinking of running like 8-9 psi, right? That's really below the range where you'd need a larger pump. A stock TII pump is still ok until you start looking for more power. The thing is a used FD pump is gonna cost you the same as a used TII pump. Mine was $25.

Stock S5 turbo peak boost is ~7.5psi, so you're not going to be far from that.

Brice_Brice

Stock S5 turbo peak boost is ~7.5psi, so you're not going to be far from that.[/QUOTE]

Given that my wastegate port goes well right? lol And yes, 8-9 psi ideally. would that require as large of a port as they have on some of the S5 wastegate writeups?

ITSWILL

iTrader: (12)

0.5 to 1.5 is hardly higher than stock.

I was running 10-12 lbs of boost through a stock BOV with an s5 turbo without a problem. You should be fine.

Where you start needing a larger BOV is when you run a larger turbo.

Good luck with your car, the racing beat exhaust sounds awesome (the best sounding exhaust IMO)

Brice_Brice

So it sounds like my boost will definitely be in a safe range. If my RB exhaust doesnt take me above 10psi stock after I install it, could I actually leave the wastegate alone, or will boost creep really need to be avoided? (I know you all said its a must, wasnt sure if that was in case I was hitting 10psi)

ITSWILL

iTrader: (12)

I run my s5 turbo at 8 to 10 and I haven't had any problems with boost creep and its not ported.

Brice_Brice

ok. Ill leave it alone for now probably, and if its creeping, I know what to do. Thanks