PI Swap Problems?

4.6LMadness · March 9th, 2009, 11:25 PM

My friend seems to think im going to blow something apart with the 10.5 compression the car will make, any one can verify this or is it safe with stock internals?

ColdSteel · March 10th, 2009, 12:17 AM

yes 10.5 is safe. countless people do this swap.

NeverEnuff · March 10th, 2009, 12:22 AM

10.5 is VERY safe. ESP with Alum heads...

4.6LMadness · March 10th, 2009, 12:36 AM

just thought id double check because my friend seems to think im going to blow a rod or something so he thinks he'll be laughing, but i should be the one laughing.

He's only driving a stock 94 cobra

ColdSteel · March 10th, 2009, 01:15 AM

tell your friend hes an idiot.

insert cuss words where you see fit.

4.6LMadness · March 10th, 2009, 01:22 AM

gota love those 5.Slow guys, they are quite a crowd

What i dont understand is how that motor makes the power it does with intake ports as small as they are.

G.T. Rags · March 10th, 2009, 04:26 AM

Originally Posted by 4.6LMadness

just thought id double check because my friend seems to think im going to blow a rod or something so he thinks he'll be laughing, but i should be the one laughing.

He's only driving a stock 94 cobra

sounds to me like he's gonna be jealous of the 25 rwhp u'll have on him

jasons_98gt · March 10th, 2009, 05:20 AM

damn i had my pi swap on for about 16k already ITS SAFE so start laughing at his ass!

Willy Mo · March 11th, 2009, 01:10 AM

a friend just did his swap onhis 98. got a lil hot and itsprung a coolant leak. any ideas? it also ideled rally high when first started for like 5 or so min.

4.6LMadness · March 11th, 2009, 01:14 AM

did he put underdrive pullies on? or is both coolant temp sensors connected?

Willy Mo · March 11th, 2009, 11:33 PM

only one temp sensor was connected at the time. He now is buying a new pi intake with aluminum crossover and gonna tap it for the second sensor. you think that was the problem?

4.6LMadness · March 11th, 2009, 11:36 PM

absolutely, that other sensor sends information to the ECU. The car does not know when its warmed up or cold with out it.

So it will just dump random amounts of fuel into the engine and not turn the fans on at the correct time. The other sensor is just for the gauge

G.T. Rags · March 11th, 2009, 11:37 PM

it wouldn't cause the leak

4.6LMadness · March 11th, 2009, 11:39 PM

Originally Posted by G.T. Rags

it wouldn't cause the leak

If it let the engine over heat and crack the intake then i would say it did cause the leak

G.T. Rags · March 11th, 2009, 11:51 PM

i've personally run my car without the sensor hooked up when i broke it and all it did was make my ac not work and caused my fans to kick on constantly....

as long as one is plugged in it wouldn't overheat.

he's got a coolant leak because he didn't do the swap properly, bottom line

Willy Mo · March 12th, 2009, 12:47 AM

the leak was from the back driver side corner. we thought that wasthe case. but heard that you sometimes dont needthe other sensor hooked up. but heis gonna getherdone this weekend hopefully. names 98midnight if yous ee him on here ask him about it.

4.6LMadness · March 12th, 2009, 01:32 AM

did you guys happen to put the gaskets back into the intake manifold? When you changed the main intake gaskets? were there any o-ring type things lying around?

Willy Mo · March 12th, 2009, 01:43 AM

shit i dunno. ididnt do the swap i just helped with some info its at some shop that he knows. i will ask and see tho. he said something about needing to put some silicone in the four corners of the intake.he said he read that in a write up.

4.6LMadness · March 12th, 2009, 01:46 AM

that would do it. He put a PI intake on nPI heads didnt he?

With out the silicone its going to leak. No if ands or butts about it.

hbk_136 · March 12th, 2009, 12:20 PM

not all 4 corner, but around the coolant ports.

March 9th, 2009, 11:25 PM	#1
4.6LMadness Enthusiast 1998 GT Mustang N/A Join Date: Feb 2009 Location: Portsmouth, Ohio Posts: 845	PI Swap Problems? My friend seems to think im going to blow something apart with the 10.5 compression the car will make, any one can verify this or is it safe with stock internals?

March 10th, 2009, 12:17 AM	#2
ColdSteel Enthusiast 97 Mustang GT Join Date: Jul 2008 Location: Central Oklahoma Posts: 626	yes 10.5 is safe. countless people do this swap. __________________ 97' GT 98' DSG Cobra

March 10th, 2009, 01:15 AM	#5
ColdSteel Enthusiast 97 Mustang GT Join Date: Jul 2008 Location: Central Oklahoma Posts: 626	tell your friend hes an idiot. insert cuss words where you see fit. __________________ 97' GT 98' DSG Cobra

March 11th, 2009, 01:10 AM	#9
Willy Mo Hardcore Enthusiast 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 1,282	a friend just did his swap onhis 98. got a lil hot and itsprung a coolant leak. any ideas? it also ideled rally high when first started for like 5 or so min. __________________ bolt ons Mineral Grey Club Member #5

March 11th, 2009, 11:33 PM	#11
Willy Mo Hardcore Enthusiast 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 1,282	only one temp sensor was connected at the time. He now is buying a new pi intake with aluminum crossover and gonna tap it for the second sensor. you think that was the problem? __________________ bolt ons Mineral Grey Club Member #5

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March 10th, 2009, 12:22 AM	#3
NeverEnuff Regular 1999 Mustang GT 10.6@130 Join Date: Jan 2009 Location: Texas Posts: 467	10.5 is VERY safe. ESP with Alum heads...

March 10th, 2009, 12:36 AM	#4
4.6LMadness Enthusiast 1998 GT Mustang N/A Join Date: Feb 2009 Location: Portsmouth, Ohio Posts: 845	just thought id double check because my friend seems to think im going to blow a rod or something so he thinks he'll be laughing, but i should be the one laughing. He's only driving a stock 94 cobra

March 10th, 2009, 01:22 AM	#6
4.6LMadness Enthusiast 1998 GT Mustang N/A Join Date: Feb 2009 Location: Portsmouth, Ohio Posts: 845	gota love those 5.Slow guys, they are quite a crowd What i dont understand is how that motor makes the power it does with intake ports as small as they are.

March 10th, 2009, 05:20 AM	#8
jasons_98gt Regular 1998 mustang GT Join Date: Jul 2007 Location: Pittsburgh PA Posts: 442	damn i had my pi swap on for about 16k already ITS SAFE so start laughing at his ass!

March 11th, 2009, 01:14 AM	#10
4.6LMadness Enthusiast 1998 GT Mustang N/A Join Date: Feb 2009 Location: Portsmouth, Ohio Posts: 845	did he put underdrive pullies on? or is both coolant temp sensors connected?

March 11th, 2009, 11:36 PM	#12
4.6LMadness Enthusiast 1998 GT Mustang N/A Join Date: Feb 2009 Location: Portsmouth, Ohio Posts: 845	absolutely, that other sensor sends information to the ECU. The car does not know when its warmed up or cold with out it. So it will just dump random amounts of fuel into the engine and not turn the fans on at the correct time. The other sensor is just for the gauge

March 12th, 2009, 12:47 AM	#16
Willy Mo Hardcore Enthusiast 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 1,282	the leak was from the back driver side corner. we thought that wasthe case. but heard that you sometimes dont needthe other sensor hooked up. but heis gonna getherdone this weekend hopefully. names 98midnight if yous ee him on here ask him about it. __________________ bolt ons Mineral Grey Club Member #5

March 12th, 2009, 01:32 AM	#17
4.6LMadness Enthusiast 1998 GT Mustang N/A Join Date: Feb 2009 Location: Portsmouth, Ohio Posts: 845	did you guys happen to put the gaskets back into the intake manifold? When you changed the main intake gaskets? were there any o-ring type things lying around?

March 12th, 2009, 01:43 AM	#18
Willy Mo Hardcore Enthusiast 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 1,282	shit i dunno. ididnt do the swap i just helped with some info its at some shop that he knows. i will ask and see tho. he said something about needing to put some silicone in the four corners of the intake.he said he read that in a write up. __________________ bolt ons Mineral Grey Club Member #5

March 12th, 2009, 01:46 AM	#19
4.6LMadness Enthusiast 1998 GT Mustang N/A Join Date: Feb 2009 Location: Portsmouth, Ohio Posts: 845	that would do it. He put a PI intake on nPI heads didnt he? With out the silicone its going to leak. No if ands or butts about it.

March 12th, 2009, 12:20 PM	#20
hbk_136 Regular Join Date: Dec 2008 Posts: 138	not all 4 corner, but around the coolant ports.

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