daniel951

injectors are only like 240 shipped for any size 55 or 75 so i bought the 75 from racetronix

We will see what i am putting to the dyno next week. Any ideas? I have'nt had it tuned but it seems pretty fast.

badass951

So why can I not find these $375 injectors on Danno's site for this much?

//SD 951

...just click on Price List

Andre

a little off topic but how much boost could i run on an 86 motor(forged rods) with a widefire headgasket but stock studs?

Also that TO4B turbo...is that just put together by someone or is that a turbo that usually sells? I mean did someone make this as their own custom turbo or is this a production thing? What kind of prices would i expect to see from a turbo like that and what other turbos should i look at for 280-320 rwhp. I remember seeing a turbo that put out around 300 full boost was at 2500 rpm. I think thats more the way i want to go, a tiny bit smaller but much better spooling time.

Duke

18 psi on chips with a bit retarded ignition and correct A/F ratios is pretty safe.

Songzzz

The max I have heard of was 24psi. You need adequate fueling when increasing boost levels.

www.lindseyracing.com
www.vitesseracing.com
www.speedforceracing.com

I could be wrong....I don't think there is any turbo out there that can support 300rwhp and full boost at 2500rpm for our cars. GT25 BB might be close

Darius Juca

Speaking of injectors what is the max HP my Bosch #52 550cc's are capable of?,,what do you guys think about Bosch?

baron951

I purchased my 951 back in 1999 with less than 65 k on the clock. replaced water pump timing belts and that was pretty much it. Car was bone stock until 2002 except for APE chips and Boost enhancer. Maintance was not bad at all did most of the work my self. Well you know what happened wanted more horsepower started adding go fast goodies car kept getting faster and faster. Unfortunately I still need more power already spent lots of time and over 10k on parts and maintance. One thing I realized is the maintance has gone up on my 145k motor. (I drive it everyday sometimes hard sometimes soft) You will become addicted to power and 300 hp will not be enough after awhile and then you will realize that you have to spend much much more money to feed the habit. Solution make sure you have an additional income to feed your addiction. put some money away for the what if this happens. you know something even after spending so much money (well a lot of money to me) some things I would have done different. However I do not regret.

baron951

Darius Juca I have 52lb injectors as well I wonder my self. I have been told that they will handle up to 370 hp but in real life I wonder if this is true

baron951

$2500 budget? Here's how I'd spend it.

$800 - T04E 50 trim, KKK hot side custom turbo (TEC).
$375 - 75lb injectors (gururacing)
$240 - Raceware studs (lindsey)
$720 - Spec Clutch kit (lindsey)
$400 - Reliaboost + custom retune chips (gururacing)

Total - $2535.
Why do you need 75lb injectors
Will you do all this work yourself?
Do not be fooled you will need a maf or map or Stand alone to work with that Turbo the AFM will not work well with your mods. You will blow someting up if you do not have a way to controll that turbo. Just getting remapped chips is not the answer because you will have driveablity issues and no way to cure them accept sending the chips back after every mod
some one chime in hear

pk951

If you look at THEFastes car he only has 52lbs injectors!

In the december issue of Excellence the car of Graham Gilles 2.8 liter made 414. hp and 434ft/lbs of torque at 1.3-bar with stock injectors!

IN the article they state that with bigger injectors they were looking at 440 at the wheels.

baron951

Pk951 are you sure about that 414 with stock injectors that seems a bit hard to swallow. Maybe with the resouces Graham had at his disposal.
us do it your self home porsche tuner/mechanics would have a hard time getting 300 plus horsepower with stock injectors. I maxed out mine with 260hp at the rear wheels. 52 or 55 should get the job done for streetable applications. I think with a Map or Standalone you may need bigger injectors but I am not sure

rage2

<essay>
I agree with you there. Because of the way our exhaust is routed, we lose a lot of energy from the head to the turbine inlet, which equals later spoolup times. Heat wrapping everything theoretically should help, I believe Danno mentioned a 200rpm earlier spoolup time with just heat wrapping. I did too many changes along with heat wrap to tell exactly how much it helped.
On a well tuned setup (not 951) I've been able to push 330whp with 550cc injectors on a mustang dyno (reads lower than dynojet).
Notice I put custom retune chips. Danno says he can remap chips for your specific configuration. Rent a wideband o2 from your local shop, slap it on the tailpipe, go for a drive, send Danno the AFR logs, and get a remapped chip.

AFM is just a metering device, just like MAF, or MAP. Unless you get a standalone and know how to tune it yourself, you'll run into the same problems (offsite tune by someone else) with whatever metering device you choose.
Injectors are pretty much the same price regardless of size. So might as well go for the biggest if your ECU/standalone can idle it for your motor!
I'm pretty sure that's a typo heh.
Like I said earlier, MAF/standalone/MAP ... those are all metering devices. What dictates the need for bigger injectors is power and afr, not the air metering device.

</essay>

SamGrant951

didnt Grahams car meet its demise not long after that story?

baron951

Rage I agree with you a Maf or Map is just a metering device and you will need a link device to make things work. (comes with kit aka Lindsey,guru and others) 951 owners like yourself with experiance and resouces can get things to work much easier. With that big turbo and 75lb injectors with just chips and AFM he will have drivablity issues because of so many variables. purchaseing a kit is the way to go in my opionon tried and true and phone support. I tried this with bigger injectors and chips mapped for my application guess what it did not work as well as it should. Only after the purchase of the Maf did things come together (well atleast good enough for now) Rage I wanted to speak with you about building a 2.8 liter motor