TD_D mod journey. From stock to the 'bastardmobile'

[HolyCrapItsFast]

The old Boost Leak tester is my greatest friend......beside E85 of course!

Amen Brotha!

 

[Td_d]

^ that. It's always the bloody worm clamps that loosen up with vibration. I'll organise t-clamps, looks much sturdier.

 

[Td_d]

Good to know. The smaller pipes (BOV, stepper motor) - do just zip tie those puppies?

 

[Td_d]

Great, found a place in Johannesburg that specialises in FI automotive parts - they have good t-bolt clamps. That'll take care of the larger pipes, wondering what the best solution for the smaller (4 - 6mm) piping would be. I want to tie everything down now.

 

[Td_d]

Yeah, that's what I thought, will procure a whole bunch tomorrow, and get zipping.

 

[Td_d]

So, whilst at it, I thought, lets do the basics - bought some MAF sensor cleaner, and when I took it out - it was filthy! The previous leak in the A/O seperator resulted in it being covered by a black coat of oil. Gave it a good clean, I think that's likely to make a major difference.

 

[HolyCrapItsFast]

You might find that you have to rescale the maf after all is said and done.

 

[Td_d]

Undoubtably. In a feat of hex and decimal headaches, and using a tool called scoobyrom, I just found the per gear ignition timing tables for the 08' sti, as yet undefined for the EUDM models. I'm pretty proud of myself

 

[Td_d]

Fuji - could you go me a favour - could you post me a picture of the deceleration fueling tables (fuel overrun) on your ROM (well stock rom at least)? I wouldn't mind finding these, and not yet defined, will help me greatly if I see what the table values and axis are.

Thanks

 

[Td_d]

Chuckle... just found the requested torque per gear for the 08 EDM STI. Weird - whilst the WRX's have a 6 gear table, the STI's only have 1st gear and 6th gear, which are set to arbitrarily high numbers (i.e. effectively disabled).

 

[Td_d]

Yeah, MAF scale is total out, predictably richer across the closed loop section, as it's now reading more air coming in, so throwing more fuel at it.

It's made a huge difference to driveability, much smoother. Note to self, always check obvious mechanical issues first before plowing into the tune :tard:

 

[HolyCrapItsFast]

Yeah, MAF scale is total out, predictably richer across the closed loop section, as it's now reading more air coming in, so throwing more fuel at it.

It's made a huge difference to driveability, much smoother. Note to self, always check obvious mechanical issues first before plowing into the tune :tard:

+1 :tup:

 

[Td_d]

Guess what's in town... going to pick up the injectors tomorrow, they have arrived! Yeeha!

 

[Td_d]

Absolutely! Thanks, Jordan, once again, impeccable service.

Now I've got to decide whether I've got the balls to try and install these myself this weekend :?

 

[Td_d]

Yeah, I was quite impressed with that too! Can't wait to put these on.

 

[HolyCrapItsFast]

Five0's are no joke... Mine were dead nuts on as well

 

[Td_d]

So - the culprit in the end was indeed a leak - the BOV flange was leaking - once removed and re-gasketed, massive improvement in closed loop. Time to buy a compressor.

Whilst the intercooler and various components were off, I had a look at the ease / difficulty of accesing the injectors - since I've had so many mods in there, they are actually vary easy to reach - mostly just loosening the fuel rails, and popping the new ones in. Definitely going to do it myself.

What's the easiest way of removing pressure in the fuel system?

 

[HolyCrapItsFast]

Disconnect the fuel pump relay (underneath the dash on the passenger side, it's green) or pull the fuse and crank the motor. That's what I do.

 

[Td_d]

Did a couple of pulls tonight, just to double check the cleaned up scaling after sorting out the boost leak, to make sure everything's healthy - and, no, have not yet had the chance to put on the injectors. Car's running like a beast, nice and chilly here, zero knock, pulling strong. However, I got an odd series of miniature 'hesitations' only in 4th gear - I got them before when I was running higher boost and really maxing out the injectors, so I thought shit - knock? leaning out?

Checked out the logs with great concern - looking super clean, tracking to AFRs, etc. So I'm perplexed, can't figure it out, and then it struck me.... Hehehe... occam's razor. I'm hitting loads (if I scale it back up for my MAF hack) of roughly 3.9 g/s - heavy duty stuff. And the sensation is like this - pull, release, pull, release, in very short bursts, at the heaviest load (and hence Torque) areas. I'm pretty certain that my stock clutch is beginning to struggle with the vicious amount of torque.

Funny, I should be irritated, but I knew the clutch would crap out at some point at these power levels, I'm almost proud of what I've managed to pull out of the car!

 

[IGOTASTi]

I'm really surprised your stock clutch is still working. :rofl: It will blow when you least except it, but good job on keeping it up to this point.