!! I6 FAQ !! <--- Newbie's Look Here - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars
Ford Forum Ford Forum

» Auto Insurance
» Featured Product
Β» Wheel & Tire Center

Go Back   Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Inline 6 Tech
Register Home Forum Active Topics Photo Gallery Auto Loans Garage Mark Forums Read Auto Escrow

FordForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
Old 08-23-2004, 06:22   #1 (permalink)
Con
Registered User
 
Join Date: Feb 2003
Location: QLD
Posts: 237
!! I6 FAQ !! <--- Newbie's Look Here

OHC I6 FAQ

To help the newbies please add a question and an answer. I did a few to get things started.

Q) How do i install my Pacemaker PH4480 extractors?
A) From pacemaker website. go there for pics
• Unbolt and remove catalytic converter from vehicle, remove heat shields and cut engine and intermediate pipes (fig. 1).
• Unbolt and discard standard exhaust manifold
• Unbolt lower bolt in steering shaft, and just loosen upper bolt so that the steering shaft can slide up and off of the steering rack
• Place sealant onto gasket and place gasket and all lower bolts onto cylinder head face, and drop header into position and tighten up
• Replace steering shaft and refit and tighten bolts
• Using the separate flange supplied with the product, bolt up to rear of Header and position cat converter into place, ensuring adequate clearance from surrounding body, floor, pan, etc.
• Return cut intermediate pipe and re-bolt to existing flange, aligning other end to the rear of cat converter (fig 2).
• Weld new assembly sufficiently enough to be handled then remove cat converter to completely weld.
• Return to vehicle and refit using gaskets to finish.

Q) How much power can my gear box handle?

A) This all depends on how the vehicle is driven, and how much traction it has. A T5 may last forever with 350kw if driven carefully, without any clutch dumps and/or sudden full throttle burst in low gears.
However it may be damaged quite easily with only 200kw if you are into the habit of 5000rpm clutch dumps at the drag strip with a 1600kg car and slicks.

In short, a T5 in good condition should be ok for up to 250kw even with regular hard use.

Q) How do i dial in a cam?
A) Mined by me written by Soxx

First thing we need to establish is whether the harmonic balancer is showing true TDC, as it is quite common for the outer ring to slip with age.
There are several methods for finding TDC, but this is probably the easiest way for a beginner.
Screw a bolt into number 1 spark plug hole with the end of it protruding (say) 10mm down the bore.
Wind the engine over by hand (gently) until the piston hits the bolt. Make a mark on the harmonic balancer at the TDC indicator. Now wind the engine over backwards until the piston hits the bolt again. Make another mark on the harmonic balancer. Now, the point exactly between the 2 marks you just made on the balancer is true TDC, make another 3rd mark, this may be on top of the mark which is already in the balancer. Simple.

Now that we have found TDC we can move onto adjusting the cam.

You will need a dial indicator for this, and you also need to know (from the cam grinder) the 'lift @ TDC' figure, which might be (say) 0.040".

You will need to set up the clock so it measures the movement of number 1 intake valve, this is very critical and accuracy is important here.
Adjust the clock so it reads zero when the valve is closed, slowly wind over the engine by hand until you reach TDC. The valve should have started opening and you will have a reading of 0.030" to 0.050" depending on how close the cam is set up to ideal.
If it's perfect straight away, you don't need to go any further.
If it's out by more than 0.001" either way, you will need to move the cam either by the use of the your newly fitted vernier gear.

Q) how much should i lower my car?
A) The e series sits higher at the back. and higher at front right to compensate for the driver. If you have LPG or a heavy stereo in the boot it will be a little leveler. Also dont forget how much fuel you have will change things s fair bit. Some FF mebers run lows in the front and super lows in the rear to level it out.

Tickford 25mm
Kings L 30mm
Lovells L 25-45mm
Whiteline L 50mm
Whiteline SL 60mm
Kings SL 50-60mm
Lovells SL 45-65mm
Lovells XSL used only on the rear.
Kings UL ?

Note: ALWAYS check with your insurance as lowering your car too much (although within legal limits) may void your insurance.

Q) Whats involved to enlarge the cat to 2.5"
A) cut off the front and rear pipe, replace with 2.5" pipe and flanges. weld it together.

Q) Which exhaust?
A) Any 2.5” exhaust with a straight through muffler. Two mufflers if you want it quiet. Redback and Lukey provide both of these off the shelf and are recommended. Redback and lukey differ in price and sound. very similar in performance.

Q) How do i stop my exhaust from droning?
A) Add a resonator/hotdog or muffler where the rear resonator used to be (beside the spare wheel well). Sometimes a big flashy tip can be causing the drone.

Q) Should I get a chip?
A) Thanks Casper:
YES! I can confidently say that either a Chiptorque or unichip is worth the money.


Q) Will my E* falcon beat my mates V* Commodore?
A) The commodore has a better first gear so will get off the line faster. Assuming same diff ratio. So it depends how far you are racing as to weather you will catch up or not. Upgrade your diff if you want to show them your arse right from the start.

Q) Who's doing a 14 sec or better 1/4 mile with a NA OHC I6
A)
BMock 14.01 @ 99.08 mph
Soxx: 14.498 @ 96.38mph
Rollin: 14.505 @ 152.46km/h ~95.28mph
Hamo: 14.86 @ 93.44mph
should you be on this list? TELL US!

Q) Which extractors?
A) The three most popular are JMM Race, JMM Scavenger and Pacemaker PH4480.
JMM Race: 6-2-1 interference design, mandrel bent, long secondaries. Excellent Performance and Quality but you pay for it.
JMM Scavenger: 6-2-1 interference design, press bent. Great performance and Quality.
Pacemaker PH4480: 6-3-1 tuned length design, mandrel bent. Great performance and Great price.

Q) Which cat?
A) Modify any EA - AU model cat with 2.5” inlet and 2.5” outlet. These cats are better than most aftermarket high flow cats costing twice as much.

Q) Should I get a bigger throttle body or get mine enlarged by 3mm?
A) If you had to ask you can not afford it. Spend your money else where its not worth the gain.

Q) Air box to throttle body?
A) EF to BA, the newer the model the better it flows. Or you can use a 3” mandrel bent pipe for best results. Worthwhile replacement on EF only.

Q) Air box lid?
A) The lower half is the same from EF – AU. EF lid flows the best. Get a metal trumpet off the AU XR8 for even better flow. You can also modify your au lid with some stormwater pipe for better flow.

Q) Snorkel?
A) EF – AU use AU XR8, stock one is quite restrictive. Also can run a 3” flexible pipe through the guard and to the front bumper. EA – ED use XH ute snorkel. Can cut a hole in your bonnet and attach a scoop too. SS inductions also have a kit but most FF members agree that’s its over priced and insignificantly better than the other options.

Q) K&N air filter?
A) not worth it unless your old one is shagged. Even then Autospeed.com claim there is an insignificant difference.

Q) Pod Filter?
A) Wank factor? Yes. Otherwise No. The panel filter has a large surface area. Pod filters can be placed in the EF - Au airbox. or get a BA XR6 turbo airbox.

Q) Should I get a reprofiled/regrind cam or billet?
A) Regrind advantages: about 1/3 the price of a billet. Regrind disadvantages: the base circle is smaller therefore there is more valve train loss at high rpm. This is insignificant with a low rpm engine like the I6. Shims are required to pack up the lifters. So don’t forget to add this to the price of the cam. Shims are available from ford spares, about $60 for 12. Your cam grinder will tell you the height of the shims to get, usually 1.2mm. If you gont want to get shims you can use washers.

Q) Can I change the cam myself?
A) If you own a socket set and some spanners then YOU ARE mechanically minded enough to do the swap. You do know what a socket is don’t you?

Q) Valve springs?
A) They can handle … lift. When you change them you should change your valve seals too. Wont take any extra time and they are cheap. New valve seals will stop oil from going into the combustion chamber.

Q) Which cam?
A) What stage it the rest of your engine at?
Stock 0:
Stage 1: exhaust
Stage 2: intake, extractors
Stage 3: ported head
Stage 4: chip

Q) How do I make my Auto stronger?
A) Big transmission cooler, Taxi clutch packs, shift kit.

Q) How do I fit a transmission cooler?
A) Buy the kit from ford or use an old aircon condenser from a truck if your engine has forced induction.

Q) How do I put a shift kit on my Auto?
A) AU just adjust the S5 solenoid. Pre-AU there is an electronic shift kit available, do a search. You can also put and AU S5 solinoid in your pre-AU box. The EMS 8860 can now control your gearbox too.

Do I need bigger fuel injectors?

What diff ratio should I get?

Last edited by Con; 08-23-2004 at 19:21. Reason: I will keep on editing this post with new info
Con is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-23-2004, 06:30   #2 (permalink)
Experimental Racer#6
 
TIKFD6's Avatar
 
Join Date: Nov 2000
Location: Wodonga Vic
Age: 41
Posts: 8,204
Re: !! I6 FAQ !! <--- Newbie's Look Here

Nice work getting them all organise mate, we should set this up as a sticky.
TIKFD6 is offline   Reply With Quote
Old 08-23-2004, 06:51   #3 (permalink)
RIP Sox.....
 
Soxx's Avatar
 
Join Date: Dec 2002
Location: Sydney
Age: 45
Posts: 2,580
Re: !! I6 FAQ !! <--- Newbie's Look Here

Great idea, but quite a few errors.

The JMM race series headers actually have extra long secondaries, not primaries.

Any E series cat will actually do the job once it's modified, the AU ones are no different.

The pod filter is actually the best method, but it needs to be mounted inside the existing EF/EL style air box.

The cost of shims do not add to the cost of a regrind cam, because you can simply use a packet of small washers and use the desired amount between the existing shim and rocker body.

Valves seals do not stop the lifters from tapping. Valves seals stop oil from entering the combustion chamber.

Power will also kill a manual gear box as dumping the clutch at 6000rpm is certainly not good for it.

Rick.
__________________
4L I6, naturally aspirated producing 173.5rwkw.
14.410 @ 96.49mph with street radials.
What's that?..... Did I hear you say TQE power?
Soxx is offline   Reply With Quote
Old 08-23-2004, 07:20   #4 (permalink)
Dev 5 Mutant
 
loxxr6's Avatar
 
Join Date: May 2004
Location: Sydney
Posts: 1,383
Re: !! I6 FAQ !! <--- Newbie's Look Here

That info's taken from the Fordmods site isn't it ???

I'm sure they have a very similar FAQ.
__________________
Proud TQE Operator
1999 Black Manual AU XR6HP
Unichip equipped by Autotech Engineering, Granville
Cam install by Crescent Motorsport, Liverpool

Dyno

Timeslip
loxxr6 is offline   Reply With Quote
Old 08-23-2004, 07:22   #5 (permalink)
Jim Mock You Rock
 
Join Date: Jul 2004
Location: sYDNEY
Age: 46
Posts: 1,766
Re: !! I6 FAQ !! <--- Newbie's Look Here

heheh
useless is offline   Reply With Quote
Old 08-23-2004, 17:05   #6 (permalink)
Con
Registered User
 
Join Date: Feb 2003
Location: QLD
Posts: 237
Re: !! I6 FAQ !! <--- Newbie's Look Here

doh
just went there (fordmods) and looked
it is very similar but not that big
come on guys we can make a far more in depth one than them if everyone helps.
other wise i will go to there and help them improve their FAQ

thanks for correcting me soxx
few things i thought the race series had longer primaries too?
Q) why will dumping the clutch at high RPM hurt my car?
A) soxx im sure you can write something funny here.

OHC I6 FAQ

Q) Which extractors?
A) The three most popular are JMM Race, JMM Scavenger and Pacemaker PH4480.
JMM Race: 6-2-1 interference design, mandrel bent, long secondaries. Excellent Performance and Quality but you pay for it.
JMM Scavenger: 6-2-1 interference design, press bent. Great performance and Quality.
Pacemaker PH4480: 6-3-1 tuned length design, mandrel bent. Great performance and Great price.

Q) Should I put the extractors on my self?
A) It’s a bitch of a job.

Q) Which exhaust?
A) Any 2.5” exhaust with a straight through muffler. Two mufflers if you want it quiet. Redback and Lukey provide both of these off the shelf and are recommended.

Q) Which cat?
A) Modify any EA - AU model cat with 2.5” inlet and 2.5” outlet. These cats are better than most aftermarket high flow cats costing twice as much.

Q) Should I get a bigger throttle body or get mine enlarged by 3mm?
A) If you had to ask you can not afford it. Spend your money else where its not worth the gain.

Q) Air box to throttle body?
A) EF to BA, the newer the model the better it flows. Or you can use a 3” mandrel bent pipe for best results. Worthwhile replacement on EF only.

Q) Air box lid?
A) The lower half is the same from EF – AU. EF lid flows the best. Get a metal trumpet off the AU XR8 for even better flow. You can also modify your au lid with some stormwater pipe for better flow.

Q) Snorkel?
A) EF – AU use AU XR8, stock one is quite restrictive. Also can run a 3” flexible pipe through the guard and to the front bumper. EA – ED use XH ute snorkel. Can cut a hole in your bonnet and attach a scoop too. SS inductions also have a kit but most FF members agree that’s its over priced and insignificantly better than the other options.

Q) K&N air filter?
A) not worth it unless your old one is shagged. Even then Autospeed.com claim there is an insignificant difference.

Q) Pod Filter?
A) Wank factor? Yes. Otherwise No. The panel filter has a large surface area. Pod filters can be placed in the EF - Au airbox. or get a BA XR6 turbo airbox.

Q) Should I get a reprofiled/regrind cam or billet?
A) Regrind advantages: about 1/3 the price of a billet. Regrind disadvantages: the base circle is smaller therefore there is more valve train loss at high rpm. This is insignificant with a low rpm engine like the I6. Shims are required to pack up the lifters. So don’t forget to add this to the price of the cam. Shims are available from ford spares, about $60 for 12. Your cam grinder will tell you the height of the shims to get, usually 1.2mm. If you gont want to get shims you can use washers.

Q) Can I change the cam myself?
A) If you own a socket set and some spanners then YOU ARE mechanically minded enough to do the swap. You do know what a socket is don’t you?

Q) Valve springs?
A) They can handle … lift. When you change them you should change your valve seals too. Wont take any extra time and they are cheap. New valve seals will stop oil from going into the combustion chamber.

Q) Which cam?
A) What stage it the rest of your engine at?
Stock 0:
Stage 1: exhaust
Stage 2: intake, extractors
Stage 3: ported head
Stage 4: chip

Q) How much power can my gear box handle?
A) Power won’t kill your gearbox torque will.

Q) How do I make my Auto stronger?
A) Big transmission cooler, Taxi clutch packs, shift kit.

Q) How do I fit a transmission cooler?
A) Buy the kit from ford or use an old aircon condenser from a truck if your engine has forced induction.

Q) How do I put a shift kit on my Auto?
A) AU just adjust the S5 solenoid. Pre-AU there is an electronic shift kit available, do a search. You can also put and AU S5 solinoid in your pre-AU box. The EMS 8860 can now control your gearbox too.

Q) Should I get a chip?
A)

Do I need bigger fuel injectors?

What diff ratio should I get?

How much should I lower my car?
Con is offline   Reply With Quote
Old 08-23-2004, 17:09   #7 (permalink)
Con
Registered User
 
Join Date: Feb 2003
Location: QLD
Posts: 237
Re: !! I6 FAQ !! <--- Newbie's Look Here

Q) Who's doing a 14 sec or better 1/4 mile with a NA OHC I6
A)
BMock 14.01 @ 99.08 mph
STOKEB 14.39 @ 96mph
Soxx: 14.498 @ 96.38mph
Rollin: 14.505 @ 152.46km/h ~95.28mph
Hamo: 14.86 @ 93.44mph
should you be on this list? TELL US!

Last edited by Con; 08-24-2004 at 06:26. Reason: adjusted times
Con is offline   Reply With Quote
Old 08-23-2004, 17:25   #8 (permalink)
Territory TS - AWD
 
RAPTOR's Avatar
 
Join Date: Feb 2001
Location: Kiama, NSW, Australia
Age: 50
Posts: 2,374
Re: !! I6 FAQ !! <--- Newbie's Look Here

Brendon Mocks 14.01 was at 99.08 mph (miles not kms, is that right)

ref => 14.01 second 1/4 pass in a Dev5 ute
RAPTOR is offline   Reply With Quote
Old 08-23-2004, 17:35   #9 (permalink)
Registered User
 
Martin's Avatar
 
Join Date: Feb 2001
Location: NSW/ACT
Posts: 3,023
Re: !! I6 FAQ !! <--- Newbie's Look Here

Since when is replacing the extractors on the I6 a bitch of a job?
__________________
1993 ED XR6 M5 (1 of 329)
Polynesian Green
Turbo on the way!!
1993 EBII Fairmont (Now wrecking, PM if you want any parts)
1988 Nissan R31 Skyline
Martin is offline   Reply With Quote
Old 08-23-2004, 17:39   #10 (permalink)
Con
Registered User
 
Join Date: Feb 2003
Location: QLD
Posts: 237
Re: !! I6 FAQ !! <--- Newbie's Look Here

Thanks raptor.

Q) Will my E* falcon beat my mates V* Commodore?
A) The commodore has a better first gear so will get off the line faster. Assuming same diff ratio. So it depends how far you are racing as to weather you will catch up or not. Upgrade your diff if you want to show them your arse right from the start.
Con is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

  Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars > The Garage - Tech Forums > Engine Specific Tech > Inline 6 Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
VIC Dyno Day EFXR62 On the Road in Australia 132 07-26-2004 19:52
The unichip debate...lets get I6 specific Casper Ford Mustang Forum 55 06-23-2004 16:09
BA I6 Motor rusty, chewin oil - What the .? I6dohc75 Inline 6 Tech 6 05-18-2004 09:05
Injectors, I6 into V8... dodgie Inline 6 Tech 12 11-22-2003 05:17
Forged pistons for I6 need help EATURBO Inline 6 Tech 4 08-13-2003 08:14

Powered by vBadvanced CMPS v3.2.2

All times are GMT -7. The time now is 00:48.



Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.0
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.