next step to more power
02-25-2002, 09:16 PM
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next step to more power
Good day everyone,
I need some advice here for the enxt step to a streetable 951. the car is a 1986 and presently has the stage 2 chopis, jetted banjo and cone air filter which I all got from Windward Perf.
I want to go to the next step without making the car too peaky or increasing the turbo lag... just make it a fun daily driver.. and I must say that my biggest peeve with the car is the sudden drop in kick in the *** at high revs...I see a whole bunch of different posts...which really just mix me up... and Windward has not responded to my emails... here are my thoughts ..in the sequence I think of putting them on ..
1- MAF.. from where ?? do I have to change the chips ?
2- Rising rate fuel pressure regulator
3- waste gate which ? from where ??
4- big bore throtle body ( performance parts ?)
5- intercooler pipes
6- 3"exhaust...
Thank you,
Michel Fournié.
4-
I need some advice here for the enxt step to a streetable 951. the car is a 1986 and presently has the stage 2 chopis, jetted banjo and cone air filter which I all got from Windward Perf.
I want to go to the next step without making the car too peaky or increasing the turbo lag... just make it a fun daily driver.. and I must say that my biggest peeve with the car is the sudden drop in kick in the *** at high revs...I see a whole bunch of different posts...which really just mix me up... and Windward has not responded to my emails... here are my thoughts ..in the sequence I think of putting them on ..
1- MAF.. from where ?? do I have to change the chips ?
2- Rising rate fuel pressure regulator
3- waste gate which ? from where ??
4- big bore throtle body ( performance parts ?)
5- intercooler pipes
6- 3"exhaust...
Thank you,
Michel Fournié.
4-
02-25-2002, 09:25 PM
#2
Nordschleife Master
if your gonna go the MAF route, I strongly urge you to buy a PRO FLOW form modernperformance. THey are 1/3 the price and do the same thing, if not better. Mine is actually 80mm btw. I will be proving this in the next couple of weeks when I dyno tune my car. I am very comfident in this product.
02-26-2002, 03:21 PM
#4
Nordschleife Master
<a href="http://www.modernperformanceinc.com" target="_blank">www.modernperformanceinc.com</a>
But you'll have to call and ask for NICK. He advertises in GRMS but the website doesn't represent the 951
But you'll have to call and ask for NICK. He advertises in GRMS but the website doesn't represent the 951
02-26-2002, 09:57 PM
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Michel,
Windard is interested in selling you parts, Period! Dont wait to long for teir tech help.
Like most people I talk to, you are going down the wrong road in how to get more usable HP for your street car. I have personally flowed every component in the 944 turbo intake system and know exactly where the restrictions lie in these components. First off, save your money on the big bore throttle body, the stock unit flows way more than your turbo, or cylinder head are capable of. Same with the hard pipes, stock pipes flow ample air for a stock or an upgrade turbo. Unless you are running an all-out race turbo, stock pipes are just a shiny upgrade, not horsepower!
Exhaust is a good area to look at for improvement, 2.5 inch is usually enough for street use with a moderate turbo, if you intend to upgrade to a larger turbo later, a 3 inch now would be advisable.
Adjustable fuel regulator is a necessary upgrade.
Mass Air Flow is an expensive upgrade for a small amount of HP increase. If you intend to upgrade the turbo at a later date, the MAF will do more for you then but until you add the turbo and need the additional flow of the MAF, its a minumal HP increase for the money. I flowed the stock Vane Air Meter and it flows way more air than the stock turbo can deliver, over 150 CFM more than the stock turbo puts out.
The most important item you should look at from the list of upgrades you are considering is the wastegate!
The stock wastegate opens prematurely causing most of the turbo lag you experience in the car, secondly as the exhaust pressure rises with the boost pressure, the stock wastegate blows open causing the boost to drop off in high gears. Often dropping from the 15 or so pounds of boost you are trying to run down to 11 pounds. Kokeln ran tyno tests on their turbo with and without our wastegate, go check their websight to see what the difference was. Our unit is a direct bolt in and requires no exhaust mods at all!
Another area you are not looking at is the intercooler. Again having flowed all the components on the 944, the intercooler is one of the biggest restrictions there is in the intake system. Our Stage I upgrade increases the flow through the intercooler from 205 CFM to 245 CFM.
The stage II adds another 10 CFM to the flow.
We are releasing a new intercooler in early March which flows more air and cools better than any other product currently on the market, and it doesn't block air to other important engine components.
If you have any other questions, feel free to call us and ask away, Dave and I go out of our way to inform our customers, not just sell them parts!
Mike at LR
Windard is interested in selling you parts, Period! Dont wait to long for teir tech help.
Like most people I talk to, you are going down the wrong road in how to get more usable HP for your street car. I have personally flowed every component in the 944 turbo intake system and know exactly where the restrictions lie in these components. First off, save your money on the big bore throttle body, the stock unit flows way more than your turbo, or cylinder head are capable of. Same with the hard pipes, stock pipes flow ample air for a stock or an upgrade turbo. Unless you are running an all-out race turbo, stock pipes are just a shiny upgrade, not horsepower!
Exhaust is a good area to look at for improvement, 2.5 inch is usually enough for street use with a moderate turbo, if you intend to upgrade to a larger turbo later, a 3 inch now would be advisable.
Adjustable fuel regulator is a necessary upgrade.
Mass Air Flow is an expensive upgrade for a small amount of HP increase. If you intend to upgrade the turbo at a later date, the MAF will do more for you then but until you add the turbo and need the additional flow of the MAF, its a minumal HP increase for the money. I flowed the stock Vane Air Meter and it flows way more air than the stock turbo can deliver, over 150 CFM more than the stock turbo puts out.
The most important item you should look at from the list of upgrades you are considering is the wastegate!
The stock wastegate opens prematurely causing most of the turbo lag you experience in the car, secondly as the exhaust pressure rises with the boost pressure, the stock wastegate blows open causing the boost to drop off in high gears. Often dropping from the 15 or so pounds of boost you are trying to run down to 11 pounds. Kokeln ran tyno tests on their turbo with and without our wastegate, go check their websight to see what the difference was. Our unit is a direct bolt in and requires no exhaust mods at all!
Another area you are not looking at is the intercooler. Again having flowed all the components on the 944, the intercooler is one of the biggest restrictions there is in the intake system. Our Stage I upgrade increases the flow through the intercooler from 205 CFM to 245 CFM.
The stage II adds another 10 CFM to the flow.
We are releasing a new intercooler in early March which flows more air and cools better than any other product currently on the market, and it doesn't block air to other important engine components.
If you have any other questions, feel free to call us and ask away, Dave and I go out of our way to inform our customers, not just sell them parts!
Mike at LR
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02-26-2002, 11:00 PM
#8
Nordschleife Master
[quote]Originally posted by PrerYDoG:
<strong>Luke - what does the proflo use for air/fuel settings? Got Pics?</strong><hr></blockquote>
no pics. I know there is a site, where an 86 951 is running the same unit as mine. As soon as I find the address I will post it. The Fuel adj. box looks identical to that of the one lindsey racing uses. Using this in conjuntion with an ADJ FPR, and a decent set of chips, I dont see why I shouldn't be able to set a near perferct 12.5:1 !!! I will let every one know though. I should be dyno tuning with in the next couple of weeks!! I cant' wait
<img src="graemlins/jumper.gif" border="0" alt="[jumper]" />
Here is a great site of a pro flow user -
<a href="http://www.geocities.com/kennethjlem/Pages/Spec1.html" target="_blank">http://www.geocities.com/kennethjlem/Pages/Spec1.html</a>
sorry mike ( i love my LR wastegate btw)
:HOw did windward come into play? THe pro FLow co. is less than an hour from my house. IF I went down there and had an order for 5/10 units I bet they'd be closer to $400 a pop.
<strong>Luke - what does the proflo use for air/fuel settings? Got Pics?</strong><hr></blockquote>
no pics. I know there is a site, where an 86 951 is running the same unit as mine. As soon as I find the address I will post it. The Fuel adj. box looks identical to that of the one lindsey racing uses. Using this in conjuntion with an ADJ FPR, and a decent set of chips, I dont see why I shouldn't be able to set a near perferct 12.5:1 !!! I will let every one know though. I should be dyno tuning with in the next couple of weeks!! I cant' wait
<img src="graemlins/jumper.gif" border="0" alt="[jumper]" />
Here is a great site of a pro flow user -
<a href="http://www.geocities.com/kennethjlem/Pages/Spec1.html" target="_blank">http://www.geocities.com/kennethjlem/Pages/Spec1.html</a>
sorry mike ( i love my LR wastegate btw)
:HOw did windward come into play? THe pro FLow co. is less than an hour from my house. IF I went down there and had an order for 5/10 units I bet they'd be closer to $400 a pop.
02-27-2002, 10:54 PM
#9
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Hello Luke
Can you tell me (or ask the pro flow guys) if you have to sent your MAF back to them every time you change something?? (like a bigger Turbo, another exhaust etc)
On their website they say they calibrate it for the specific airfilter, the injectors etc etc.
If so for what is the adjustment on idle and full boost on the device?
You know that with the ARC2 you can adjust everythyng by your self on HR MAF but what about the pro flow stuff.
It is not a good Idea to spend $125 each time for a recalibration if you want to make a new mod on your car.
Can you find out what is true and what not?
Konstantin
Can you tell me (or ask the pro flow guys) if you have to sent your MAF back to them every time you change something?? (like a bigger Turbo, another exhaust etc)
On their website they say they calibrate it for the specific airfilter, the injectors etc etc.
If so for what is the adjustment on idle and full boost on the device?
You know that with the ARC2 you can adjust everythyng by your self on HR MAF but what about the pro flow stuff.
It is not a good Idea to spend $125 each time for a recalibration if you want to make a new mod on your car.
Can you find out what is true and what not?
Konstantin
02-28-2002, 01:24 AM
#10
Nordschleife Master
nope, no sending back for calibration. The box with it is pre set to a "position" where it would be close to plug and play I guess. It has an "idle adjust" and a "mixutre adjust". combined with a decent set of chips and an adj. FPR i dont see why I shouldn't be able to get a good A/F ratio through out. This MAF is a general replacment for ALL bosche VANE meters.
btw I will be running this MAF with a SFR turbo. and several other mods.
btw I will be running this MAF with a SFR turbo. and several other mods.
02-28-2002, 01:26 AM
#11
Nordschleife Master
[quote]Originally posted by Konstantin:
<strong>Hello Luke
Can you find out what is true and what not?
Konstantin</strong><hr></blockquote>
? can you be more specific?
about as "true" as it'll get is for me to show you the A/F ratio's and dyno numbers in about 3 or 4 weeks. I am very confident that this system will work just as well as any other.
<strong>Hello Luke
Can you find out what is true and what not?
Konstantin</strong><hr></blockquote>
? can you be more specific?
about as "true" as it'll get is for me to show you the A/F ratio's and dyno numbers in about 3 or 4 weeks. I am very confident that this system will work just as well as any other.
