...UPDATE...

Just got my Zeitronix Wideband O2 hooked up and I was suprised what I found...

Running rich at WOT, now I have to either add boost or cut some fuel to the car. Im leaning towards a 3.2" pulley. On the other hand keeping it that rich will ensure my 10.5:1 motor from pinging.



I hooked USER1 input to my Mass Air Meter to see if I was pegging it at 5 volts, and I am indeed maxing out the meter.

John

Took 2 pounds of fuel out of the system and got a flat 11.0:1 across the band @ WOT. Car feels faster, I might take another lb or two to get 11.5:1. I think I could get this thing over 500rwhp @ this boost level. Graph below. Im going to try to get to the track in a next week or two. Ill keep everyone posted.

 

Nice! You're making me want a project car.

Keep up the good work and keep us updated.

 

You painted that in your garage? How did you keep the room so clean?

 

I didnt, which is why I spent 20+ hours clear coat sanding and buffing to get it the way it is. From 10 feet away it looks great but if you get up close enough and stare into the paint you can easily find some blemishing, worked over sags, and i think a total of 3 fish eyes. I also burned a small area of the base/clear in the spoiler with my buffer. It was my first attempt at painting a whole car, I know I could do it 10x better with learning from my mistakes.

 

^^^Whew! I was feeling like an idiot for not turning my garage into a paint booth. The paint looks great in the pics!

 

swapped the 3.33 SC pulley for a 3.05. It leans up to 11.5:1 near redline which is perfect. The extra few PSI is definetly putting me over the 500rwhp mark, Ill try to get to a dyno soon.

 

Okay so I think I found a solution to pegging my meter and the super rich A/F.

Since I am barely pegging it and dont want to retune the car and/or buy a $300 meter when I only want another 30-40 hp more

Here is my latest datalog @ 8+ PSI



You can see I peg the meter now about 5k and below that my transfer function is telling my computer to go rich. Well I checked into the reasons for this and I noticed the piping just before the Mass air meter is 2.5 inches. I heard the main reason a blow through pegs so much earlier than a draw thru is due to the restricted sized of the piping before the meter. So i checked with procharger since I noticed all new system come with 3 inch piping now and I got them to send me a new 3 inch pipe to go before the MAF ($55 including shipping). I will just put a 2.5 to 3 inch coupler on the other end to meet with the remaining 2.5 inch intercooler piping. In the end I should be giving another 12-14" of straight, 3 inch piping before the flow hits the MAF sensor. This should be less turbulent with less velocity thus tricking the computer ever so slightly that the AF should be leaner throughout the powerband, and give me more top end room. I also think the more laminar flow of the straight 3" pipe before the meter will help the meter read more effectively and wont fool the computer into a rich condition.

I drew a diagram to show what I mean



here is a pic of my crazy 2.5" S pipe



here is a pic of the straight 3" pipe I found on corral



Am I just reaching here? or do you think this will help extend some life out of my MAF and improve drivability?

Comments welcome,

John

 

Ugh just got back from the dyno. Only paid for one pull and not only did I peg the meter and go lean above 5K and i need new plugs regapped to prevent spark blowout, felt like the rev limiter kicked in @5200 and not 6000. So I never got to max HP.

I only made 427 rwhp @ 5250 but torque was 471 @4000. Should have been more like 475/471. I need a new meter and get rid of my ignition box and pull all the timing through the TwEECEr. I should have this thing back to the dyno once I fix these 2 issues. looking for 500/480. Ill post dyno sheets when I get my camera.

Update:

just added a new PMAS protube which should give me room up to 550-600 rwhp.



regapped the plugs to .032

result was smooth pulling to 6k



now shooting for 500rwhp/500rwtq

 

Got the car to Bradenton 1/4 mile tonight with the mustang.

Runs were as follows:

Run 1 - Spun through first.

R/T .363
60' 2.085
330' 5.611
1/8 8.321
mph 90.94
1/4 12.527
mph 116.02

Run 2 - added 1 deg to timing, spun first again.

R/T .488
60' 2.150
330' 5.680
1/8 8.278
mph 92.58
1/4 12.450
mph 115.85

run 3 - added 2 degree of timing, short shifted first

R/T .433
60' 2.036
330' 5.542
1/8 8.222
mph 92.22
1/4 12.375
mph 119.17

Run 4 - kept timing same as run 3, short shifted 1st.

R/T .457
60' 2.060
330' 5.423
1/8 8.067
mph 93.31
1/4 12.190
mph 119.80


Run 5 - kept timing same as run 3, short shifted 1st, car broke up in 4th near redline.

R/T .539
60' 2.078
330' 5.446
1/8 8.089
mph 93.34
1/4 12.230
mph 117.32

All in all I got some decent runs in, the two things that hurt me the most is having to baby it through 1st and 2nd gear cause of my street tires. The second problem is I run out of gear in 4th gear at the end of the 1/4 mile. I either have to shift into 5th the last 150 feet (which kills my mph) or I ride out 4th and risk doing damage to my motor or it breaks up above 6k due to spark blowout or valve float. The car definetely has a 11.99 in it in street trim. If I step up to a 28" tire I will not only get more gear out of 4th but I will be able get stickier launches and get in it harder in 1st and second.

Dont know where Im going with the car for here, but I probably wont go back to the strip till after the summer.

John

 

Run 4 looks like a keeper! When do you see breaking into the 11's? Congrats and keep up the good work! I hope to be there this summer number wise in my GTO.

 

As soon as I get some 275/60/15 MT drag radials mounted on my 15x8 prostars, I think Ill be at about a 11.5 @122-124 or something close to that. I don't know if Ill wait till fall to run it again. I do have an upgraded 3 core 27x12.5x3 intercooler to replace my 18x12.5x3 2 core, that should arrive by friday of this week. I still havent found my max timing yet for the motor, the max I ran was 15 BTDC and people have suggested I could run it as high as 25 BTDC. I was having such a hard time keeping it planted in 1st and 2nd that any additional power would have slowed my ETs.

John

 

Its been awhile but I have started a new project.

The turbo is a T-66 with a .81 ar. I think it will be too small, but I will give a try before moving to something with a little more flow. I still have to get some fittings and Im not sure if I wanna make this a blow thru or draw thru setup just yet.

If i grab both ends of the shaft they move every so slightly (little play), but overall its seems to stabilize once I give it a little spin. How much shaft play is too much shaft play???





Looking for 500rwhp/600rwtq on 7-8 psi.

John

 

Update on New Turbo Install

Everything is pretty much installed, im chasing down a few small oil leaks but overall everything is going smoothly. I got a custom x-pipe made for $90 shipped to connect my down pipe to cat back. I now know why V-8's don't come with turbo's often. The piping I had to run is insane considering it was a draw thru setup. My GF just got me a gift for my b day. The turbonetics bypass valve will replace the cheap Mitsubishi one on the car now. Now just tuning and make sure everything buttoned up properly.

Here are some photo's

 

Awesome word dude, keep it up :D

 

looks great man, sounds like you'll be in the 11s soon.

 

Looks very nice; how do you like the t-66? is it a ball bearing turbo?

 

I guess I like the turbo, really cant say just yet. I'd assume it was BB but I could be wrong. I spool around 2400 and get full boost by 2900. I'm having a hard time getting my blow thru SC calibrated Mass air meter to work in this system so I just ordered a draw-thru NA curve meter with a flow sheet. I'm hoping it will fix some of the drive ability issues I'm having now. WOT is nice though. Since I put in a 5.8 waste gate spring and the source is off my compressor I am only seeing around 5 psi. Still waiting on an adapter to my turbonetics BOV so I can get this plastic one out of here.

I'm going to hook up my boost controller once I sort out my drivability issues. The car definetely has a much more stout midrange than it did with the blower. The car is 10x quieter also.

 

Why did you go from SC to Turbo?

 

Simply AWESOME. Good job on your project!!

 

I guess I wanted a new challenge and a little faster. Once I get this thing tuned up i'll be probably 50-60 hp more on the top end and much strong in the mid range at the same boost levels. Plus I enjoy my car being much quieter now... no constant blower venting, whining, and loud exhaust. A boost controller is always a plus since changing pulleys was a real PITA.

 

Stroker, where are you located? I used to live in Sarasota and go to the Bradenton strip all the time when I was 16-18, now I'm up in Orlando (and hating it) so if I ever go, I'm at the Bithlo (Orlando) track out in redneckville. Haven't been out to the strip for a while, since my recent cars - Protege5 & RX8 - haven't exactly been drag cars...Might give the Speed 3 a shot one of these days if I ever feel like waiting in line all night to get one run.

 

MS 3 huh....I'll run with ya at Bithlo Rhawb.

BTW, when are you ever in Illinois? Geneva isn't too far from where I'm moving to in Carol Stream.

 

A quick question: Anyone know why there are two nipples on the bypass valve??? I would assume I hook up the vacuum source to the top one but what do I do with the other. This is the third such device I have owned and they all have had only one nipple for a vacuum source?? Any Ideas?? I am getting the 1 3/8 bypass adapter tomorrow and would like to hook this up correctly...

John

P.S. I live in Tampa

 

Nice, so you would say the turbo is better in the mid and high? This kind of kills a theory I was holding about Superchargers in larger displacement motors....

 

Haha, I think my Speed would just shut itself off at the line if it saw your car.

As far as IL, I'm going to be there pretty often now...My parents just transferred up there for work, and I'm looking pretty seriously at moving up there myself. For now, though, holidays are probably a pretty good bet, plus I head up there other times just whenever I happen to get a chance. I was just up there last week and I meant to meet up with Reds and that whole group, but we ended up being too busy. I'll have to try and get together with you guys next time I'm up there.