3.8 built ready
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Joined: Mar 2009
Posts: 726
From: beirut lebanon
Rep Power: 54
Ok, first tests done, and yes we have a few E85 stations here.
My injectors seems to me maxed out @1,5Bar with E85. (logs sent to Todd too)
The timing is very timid for now, same as with 98 pumpgas.
Nevertheless times are pretty fast: 100-200 in 4,8' and 96-209 in 5,4' alone in the car (at 1,50Bar boost).
I didn't tried long pulls yet but an astonishing 100-250 in 9,3', 2 persons in during the logging.
A new tune with more agressive timing will be tested soon.
For now I dunno which fuel will be my standart...
Cheers,
P.
My injectors seems to me maxed out @1,5Bar with E85. (logs sent to Todd too)
The timing is very timid for now, same as with 98 pumpgas.
Nevertheless times are pretty fast: 100-200 in 4,8' and 96-209 in 5,4' alone in the car (at 1,50Bar boost).
I didn't tried long pulls yet but an astonishing 100-250 in 9,3', 2 persons in during the logging.
A new tune with more agressive timing will be tested soon.
For now I dunno which fuel will be my standart...
Cheers,
P.
.Are you running stock intank pumps?what is the size of your injectors.Thanks,
Ali
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Registered User
Joined: Nov 2008
Posts: 833
From: France
Rep Power: 85
Hi Nick and Ali,
My clutch is the strongest Sachs I could buy at FVD's, I have the ref. somewhere...
My fuelpump is stock, with a 5Bar FPR and 80Lbs injectors, IDC was 65% with 98pumpgas @1,35-40Bar and 95% with E85 @1,5Bar.
Lambdas perfect.
But a little upgrade might be the next mod...
My clutch is the strongest Sachs I could buy at FVD's, I have the ref. somewhere...
My fuelpump is stock, with a 5Bar FPR and 80Lbs injectors, IDC was 65% with 98pumpgas @1,35-40Bar and 95% with E85 @1,5Bar.
Lambdas perfect.
But a little upgrade might be the next mod...
Registered User
Joined: Apr 2006
Posts: 1,677
From: London (UK)
Rep Power: 156
Hi Nick and Ali,
My clutch is the strongest Sachs I could buy at FVD's, I have the ref. somewhere...
My fuelpump is stock, with a 5Bar FPR and 80Lbs injectors, IDC was 65% with 98pumpgas @1,35-40Bar and 95% with E85 @1,5Bar.
Lambdas perfect.
But a little upgrade might be the next mod...
My clutch is the strongest Sachs I could buy at FVD's, I have the ref. somewhere...
My fuelpump is stock, with a 5Bar FPR and 80Lbs injectors, IDC was 65% with 98pumpgas @1,35-40Bar and 95% with E85 @1,5Bar.
Lambdas perfect.
But a little upgrade might be the next mod...
How do you find it?
Thread Starter
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Registered User
Joined: Nov 2008
Posts: 833
From: France
Rep Power: 85
Yes Nick, the 1050Nm one, it seems pretty strong and stays correct at driving, not too stiff.
Rui, It seems possible to me the 100-200kph time could lower to 4,7' with a better timing!
Anyway my goal isn't breaking records... (and i'm still far from)
I admit the road was a bit long (and expensive!) but today the car is very strong and pleasant for my use.
Rui, It seems possible to me the 100-200kph time could lower to 4,7' with a better timing!
Anyway my goal isn't breaking records... (and i'm still far from)
I admit the road was a bit long (and expensive!) but today the car is very strong and pleasant for my use.
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Joined: Aug 2011
Posts: 670
From: Istanbul - Turkey
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Hi Pascal,
Its a big problem with these engines. however can be fixed.
You will need a harmonic damper to overcome the issue.
Which flywheel and crank pulley do you have now?
Second thing can happen is flywheel bolts coming loose...
(Porsche has an official bulletin about this issue.)
Its a big problem with these engines. however can be fixed.
You will need a harmonic damper to overcome the issue.
Which flywheel and crank pulley do you have now?
Second thing can happen is flywheel bolts coming loose...
(Porsche has an official bulletin about this issue.)
Registered User
Joined: Dec 2005
Posts: 2,566
From: new york
Rep Power: 604
Hi Pascal,
Its a big problem with these engines. however can be fixed.
You will need a harmonic damper to overcome the issue.
Which flywheel and crank pulley do you have now?
Second thing can happen is flywheel bolts coming loose...
(Porsche has an official bulletin about this issue.)
Its a big problem with these engines. however can be fixed.
You will need a harmonic damper to overcome the issue.
Which flywheel and crank pulley do you have now?
Second thing can happen is flywheel bolts coming loose...
(Porsche has an official bulletin about this issue.)
Thread Starter
|
Registered User
Joined: Nov 2008
Posts: 833
From: France
Rep Power: 85
Hi Pascal,
Its a big problem with these engines. however can be fixed.
You will need a harmonic damper to overcome the issue.
Which flywheel and crank pulley do you have now?
Second thing can happen is flywheel bolts coming loose...
(Porsche has an official bulletin about this issue.)
Its a big problem with these engines. however can be fixed.
You will need a harmonic damper to overcome the issue.
Which flywheel and crank pulley do you have now?
Second thing can happen is flywheel bolts coming loose...
(Porsche has an official bulletin about this issue.)
My crankshaft has been balanced during the rebuilt, my Carrillo and Mahle pistons are as well...
I run a LFWL and the stock pulley for now.
My engine is very responsive from low end and I believe it is the issue.
Thread Starter
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Registered User
Joined: Nov 2008
Posts: 833
From: France
Rep Power: 85
Your motor should be internally balanced and should not need a harmonic balancer.The spinning off of the crank pulley is not due to an unbalanced rotating assembly usually.It is usually the stock crank pulley and lwf combo coming to an abrupt stop when letting off the gas.Double pin the crank and install a aftermarket crank pulley (think Evoms)and the problem goes away.
Yes as said to Emre my internals are well balanced.
I'm gonna machine 2 other holes for pindowell (at 120°, or 1 at 180° if enough) at the end of my crankshaft and shrink fit a light inertia pulley from Todd or Evoms.
True 750/800ps is an hard drug to drive, but you really have to merit it!
P.
Registered User
Joined: Mar 2009
Posts: 726
From: beirut lebanon
Rep Power: 54
Hi Joe,
Yes as said to Emre my internals are well balanced.
I'm gonna machine 2 other holes for pindowell (at 120°, or 1 at 180° if enough) at the end of my crankshaft and shrink fit a light inertia pulley from Todd or Evoms.
True 750/800ps is an hard drug to drive, but you really have to merit it!
P.
Yes as said to Emre my internals are well balanced.
I'm gonna machine 2 other holes for pindowell (at 120°, or 1 at 180° if enough) at the end of my crankshaft and shrink fit a light inertia pulley from Todd or Evoms.
True 750/800ps is an hard drug to drive, but you really have to merit it!
P.
I just install the Proto pulley on my 3.8l engine using only the factory pin.torqued it at 140ft/lb(190NM) with red loctite.Todd.K said this is enough and no need for another pin.
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Joined: Aug 2011
Posts: 670
From: Istanbul - Turkey
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Internal parts balancing and harmonic balance are different things...
http://www.moparmusclemagazine.com/t...kshaft_damper/
Some birds in USA and Germany told me that several Porsche engines are having broken oil pump issues... (same reasons like loose flywheel bolts, loose crank pulley etc...)
Just my 2 cents...
http://www.moparmusclemagazine.com/t...kshaft_damper/
Some birds in USA and Germany told me that several Porsche engines are having broken oil pump issues... (same reasons like loose flywheel bolts, loose crank pulley etc...)
Just my 2 cents...
Last edited by Emre@Esmotor; Mar 17, 2014 at 02:00 PM.
Thread Starter
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Registered User
Joined: Nov 2008
Posts: 833
From: France
Rep Power: 85
Internal parts balancing and harmonic balance are different things...
http://www.moparmusclemagazine.com/t...kshaft_damper/
Some birds in USA and Germany told me that several Porsche engines are having broken oil pump issues... (same reasons like loose flywheel bolts, loose crank pulley etc...)
Just my 2 cents...
http://www.moparmusclemagazine.com/t...kshaft_damper/
Some birds in USA and Germany told me that several Porsche engines are having broken oil pump issues... (same reasons like loose flywheel bolts, loose crank pulley etc...)
Just my 2 cents...
Do you mean you bolt some "crankshaft dampers" on your engines?