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105RWHP @ tq at 4.5psi (so far), no reliabilitly issues, though the dyno showed that my fuel pump was out of juice; though I don't consider that a "reliability" issue. No issues in 4k miles & 10 months of fairly hard driving.
Mark
__________________
Mark Robinson
HCR-PCA '94-'09
Red '91 965 BB-turbocharged
Red '86 928S turbo
Red '88 951S
Ren '82 928S turbo track car
Location: Houston (West U) and Columbus (Hilliard) OH
Posts: 109
Rep Power: 7
Congrats. I have owned as 928S4 and considered buying another one for fun. I always look for boosting a car. Can you clarify the 105 rwhp for me. was that the gain? Will you add a bigger pump and injectors so you can boost more? is your motor fresh or still on original mile, whatever that is.
Anyhow, congrats!
Quote:
Originally Posted by Porschesolution
105RWHP @ tq at 4.5psi (so far), no reliabilitly issues, though the dyno showed that my fuel pump was out of juice; though I don't consider that a "reliability" issue. No issues in 4k miles & 10 months of fairly hard driving.
Mark
__________________
Andy
Porsche 964 DMG/LMS/B&B/Authority 3.8 Cab
Porsche 911T Targa Orange/Black
Corvette C5 Twin Turbo, TNT, FLT Stage IV Red
Acura MDX Touring Black/Tan
Mercedes Benz C230 Kompressor Red/Black
My car dyno'd 302rwhp/294 tuned before I bolted on the turbo kit. The kit comes with injectors and your pump should be good for at least 440rwhp or so, mine appeared to be a little weak. I'd go ahead & spend another $200 before you start tuning, as I was trying to tune to a weak pump & now that my new Bosch 044 pump is nice & strong, my mixtures are all too fat. My motor is an un-touched '86 in my '86 car with 21k miles on it: basically a new, turbocharged 928.
Mark
__________________
Mark Robinson
HCR-PCA '94-'09
Red '91 965 BB-turbocharged
Red '86 928S turbo
Red '88 951S
Ren '82 928S turbo track car
Opposite of heat issues: it runs cooler, so did my last turbo 928. I'm putting down about 440rwhp currently at 6.5psi.
My car is very low, I've bumped the system one time (small scrape), but other wise it's fine. All the wiring & vacuum & oil/water lines are routed up high.
Mark, I'm in Dallas and looking for a good mechanic or shop for my 928. Any suggestions? I see you're in Austin, do you use or know of anyone down there as well?
Thanks Mark. I wish I had a good reliable mechanic in Dallas. I have a bunch of questions for you regarding your turbo install. I'm on the fence between SC (twin screw) and single turbo. What type of FI system would you use if you had it to do over again, and why? Would you consider helping me with an install. I would pay you of course!
For either an S or S4, I'd stick with the stock FI but would opt for 36# injectors, a Bosch 044 fuel pump, & the $$Sharktuner: makes for a great & simple setup & tuning...with a Wideband O2 of course.
I'll be at the OCIC '09 at the end of the month at the Arlington Convention Center: could be upwards of 100 928's there! You going??
I'll have my car + the majority of a full kit to show.
Mark
__________________
Mark Robinson
HCR-PCA '94-'09
Red '91 965 BB-turbocharged
Red '86 928S turbo
Red '88 951S
Ren '82 928S turbo track car
I'm sorry Mark. By FI, I meant Forced Induction. Which type would you do if you had to do it all over again? And yes I'm going to the OCIC. It's too close to miss this year.
I've had 2 Supercharged cars & have driven yet 2 more: there's no comparison: Turbocharging is SOOO much more fun, interesting, pleasurable, exotic, cost effective, etc. Look forward to meeting you! Come say hi: you can't miss my car.
__________________
Mark Robinson
HCR-PCA '94-'09
Red '91 965 BB-turbocharged
Red '86 928S turbo
Red '88 951S
Ren '82 928S turbo track car