rtking

We think the injector is maxed out. I had Jose and Jesse try to increase injector duty cycle but the dyno still showed that we were running lean and the HP graph shows that I'm pulling back on timing. Even on my G-Tech runs, the HP graph really gets ragged at peak HP on my 0-60 run. That is telling me that the computer is pulling back timing at peak boost.

I think the only solution at this point is a physical one - the injectors that Jose & Jesse have. With the new injectors, I think that will drop A/F ratios and will allow playing around with the timing curves to extract more power.

Bob

drexappeal

Carlos, mig888 apologizes - He has some stuff to take care of and he can't make it on Saturday.

polarbexar

Nice looking S/C. Doing that with hedders ought to be awesome.

wizkid

That makes sense to me. How many injectors per cylinder in those cars? Just one? Is it an easy swap?

SeaCoupe

So simple it would make you cry. I just don't what the flow rate of the injectors that we have now are. Bob, did you get yours done up at RC engineering by chance?

E

mig888

300CC good sir. I thought I told you :p.

mig888

4 of them - both engines. The M271 fuel rail is quite a bit more difficult to get to than an M111, but once there, you'll realize what you need to do.

mig888

Lol, it's a tossup between you and Ed... uh oh!

SeaCoupe

What a tossup of who grenades their engine first?!

Man, just went to the bank....Having too much fun with the throttle. Bad Ed, Bad Ed.

Getting a bit of belt squel when I get on it. Wonder why?

E

Saprissa

was he even signed up to begin with ????

mig888

Hey Carlos, YES - I was going to go, either with/without a sign-up. I actually really wanted to meet you since Drex talks about you every other phone call haha...unfortunately have to take care of some 'other' things. Good stuff for us.

Saprissa

no worries man... I've read good things about you here on this forum... so all is good ! Maybe you can come out to the next one... all my meets are 100+ Benzies so you gotta make it out and show off your stuff !

rtking

LOL - I'm guessing that with the ported supercharger, Ed's gonna need those injectors first. But I won't be far behind - I'm kind-of thinking of doing the same thing. I really have to take a look at getting a throttle body to Jose and Jesse for porting too.

Y'know, all these mods are depleting my "finish my Mustang SVO" fund. I'm sure my wife would like to have my Mustang drive in and out of the garage sometime before my 5 month old son grows up and moves out of the house.

Hmmm... belt squeal? You're not putting any more stress on that belt than was there before - in fact, I'd say you're putting less stress since the supercharger is more efficient now and requires less power to crank out the boost. It could be that the belt has stretched to its limit? Or maybe a new tensioner? I have to take a look at the C230's tensioner. I know one simple trick for Fords is to notch the belt tensioner so you can advance the spring a little to increase belt tension.

Bob

drexappeal

Bob, bored throttle body Based on the small amount of gains my car had from stock, it was worth it IMO. I'm just surprised that hardly anybody wants to step up to the plate and fork up money.

rtking

Yeah, I can see that. I think people don't want to step up to the plate because they want to see what the actual returns are (hp, etc.) and then vascillate between mods. To be honest, $200 for C32 swaybars or $250 for a throttle body? Both are good and can be argued either way. That's why I tip my hat to innovators such as yourself, emrliquidlife, mig888 and buellwinkle for stepping beyond the "knowns" and taking on the unknowns.

Bob

drexappeal

Bob, don't sell yourself short. You have contributed just as much input and problem solving as all of us. In fact, all of you are so much more knowledgable than I am so much so that I actually feel quite inept in comparison to you all. But I will pony up money for good projects and definitely will pony up time (as long as I can schedule it w/ work).

As for the decision between the sways and the throttle body...hmmm...I can see the dilemma. Power is so much more fun when you can use it in the turns...LOL. Can you say, "my esp is going nuts!..."

splinter

Agreed, and that's why I'd like to see your 400+HP SVO out of the garage and on the road. Of course, with your new son, it's all about priorities - so, we understand!

rtking

LOL! Yeah, I've got to get working on that! But my son keeps me pretty busy and at this rate, he'll probably end-up finishing the car for me! BTW, your sway bars are definitely working hard in my car! Thanks again!

Drex, thanks for the kudos. I think we can all benefit from the development of mods for our cars. Nice to have performance options, y'know?

Emrliquidlife: I haven't had my injectors reworked yet. RC Engineering is a good place for cleaning and flow-matching injectors, but I don't know if they carry the Siemens injectors our cars use. Jose and Jesse found a source, so I'm inclined to just go with what they've come up with since it looks like it's working well in Drexappeal's car. BTW Drex - that video that Flipachu put on youtube of your car was pretty cool.

Bob

rtking

LOL! I think the magic "ESP OFF" button takes care of a lot of that! Then we wonder why the rear tires are half-roasted!

Seriously, I've begun to wonder what the diamter of our ring gear is. I know that a Quaife LSD is available for the C32, but not for our cars because our differential is smaller. I'm wondering if there's a really close equivalent that we can use? Maybe a LSD with nearly identical inside diamter for the ring gear that only needs the mounting bolt holes drilled and tapped? I know it's more than that - input splines need to be the same, etc. But it's got me thinking...

drexappeal

Bob,

Let's just say the car is running like a completely different car, but just as smooth as when it was completely stock. No error messages, smooth idol (except maybe when first starting the car from cold start).

As for the video, that was when the headers were first bolted on. They were so much louder then because they were still breaking in. Now, you can only hear them on acceleration (and it is still super subtle).

I'll give you all more updates tomorrow.

splinter

Would you share your impressions of the upgrade with us?