so has anyone actually made 500bhp from a v12 pre.he
#381
they will sell you a kit for you to put together too ( you have to send them your engine parts) they work them over and send them back for you to assemble...
heads cams and the lot
they also offer a stroker kit for the 5.3 to 5958cc so a satge II stroked would put out what?
If you want to stroke I would advise buying a 6.0L engine and either freshen it up or as I will be doing shortly rebuild my original engine with the 6.0L parts.
Clean up the intake ports, 3 angle valve cut, ceramic coat pistons and exhaust manifold. New down pipes and port the exhaust manifold. 450hp should be attainable with 500ftlb+ of torque.
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ronbros (11-26-2014)
#382
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Then you will need to budget to lower the CR, the 6.0L heads have larger chambers around the exhaust valve, this makes these heads flow better than the 5.3L heads.
If you want to stroke I would advise buying a 6.0L engine and either freshen it up or as I will be doing shortly rebuild my original engine with the 6.0L parts.
Clean up the intake ports, 3 angle valve cut, ceramic coat pistons and exhaust manifold. New down pipes and port the exhaust manifold. 450hp should be attainable with 500ftlb+ of torque.
If you want to stroke I would advise buying a 6.0L engine and either freshen it up or as I will be doing shortly rebuild my original engine with the 6.0L parts.
Clean up the intake ports, 3 angle valve cut, ceramic coat pistons and exhaust manifold. New down pipes and port the exhaust manifold. 450hp should be attainable with 500ftlb+ of torque.
this is from actual experience with the Jag V12
#384
The stock 6.0L in Aussie trim made 325hp and 360ftlb
The 5.3L made 296hp and 330ftlb
These are from the Jaguar ROM
Remember the torque peak is around 3500rpm
So I made an assumption on 450hp and 500ftlb. I know 400hp is easily attainable and with a few additional mode 450hp should be close.
The 5.3L made 296hp and 330ftlb
These are from the Jaguar ROM
Remember the torque peak is around 3500rpm
So I made an assumption on 450hp and 500ftlb. I know 400hp is easily attainable and with a few additional mode 450hp should be close.
#385
I guess we'll see once I have my engine built. I know it will be nowhere near a Ford or Chev V8 but I like the V12 and am not looking now to make huge HP. Just a nice touring with the occasional blast.
Last edited by warrjon; 11-27-2014 at 04:18 AM.
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ronbros (11-29-2014)
#386
BTW I should have my 4L60e back in 2 weeks, its being built now, Xmas plan is to replace the TH400
I have also been playing with my MegaSquirt, Just ordered the new simulator . Phase 1 is to get the 5.3 running on fuel only then getting ignition running. Hoping I can get it running on the stock Marelli trigger so I do not have to change the trigger wheel.
Once I have my stock engine running on the MS I will then rebuild and can re-tune for the 6.0L
Ron have you had experience with HFP injectors? I am thinking of using these, much cheaper than having my original injectors cleaned, they want over $500 to clean my injectors.
http://www.ebay.com.au/itm/HFP-24LB-...item2a34c7dd94
I have also been playing with my MegaSquirt, Just ordered the new simulator . Phase 1 is to get the 5.3 running on fuel only then getting ignition running. Hoping I can get it running on the stock Marelli trigger so I do not have to change the trigger wheel.
Once I have my stock engine running on the MS I will then rebuild and can re-tune for the 6.0L
Ron have you had experience with HFP injectors? I am thinking of using these, much cheaper than having my original injectors cleaned, they want over $500 to clean my injectors.
http://www.ebay.com.au/itm/HFP-24LB-...item2a34c7dd94
Last edited by warrjon; 11-27-2014 at 04:36 AM.
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ronbros (11-27-2014)
#387
Warren, this maybe a little of topic but I made my own Injector cleaner out of some old air line fittings, a couple of small spade connectors a push button switch and a 9v battery. Using compressed air and some solvents at 29psi, then flushed with fresh fuel made a world of difference to my injectors. I sprayed them into a clear PET bottle to see what was happening, it worked so well I donated it to a mechanic friend who now swears buy it. I still have the bottle here with all crap that I washed out of them.
Last edited by Katoh; 11-27-2014 at 06:25 AM. Reason: doubled words
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ronbros (11-27-2014)
#388
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500hp sure
I have a 1992 HE so I would be just fine with stage II or III
my AH I built a stage III engine by my self... on the cheap... at 9k rpm some thought it was a stage IV but I drove it fine on the street... ( keeping it under 4.5k) not on the cam yet... it was ok
do not have the money at this time...
just ship these guys your V12 and a nice check...
they will sell you a kit for you to put together too ( you have to send them your engine parts) they work them over and send them back for you to assemble...
heads cams and the lot
they also offer a stroker kit for the 5.3 to 5958cc so a satge II stroked would put out what?
stage I SRE Stage II Stage III Stage IV core kit dis
JAGUAR 3.8, 4.2 $6800 (291) $7600 (312) $7600 (331) $9000 (351) $11600 (412) $2000 $1200 JAGUAR V-12 HE $7800 (338) $8800 (362) $8800 (396) $10200 (464) $13400 (572) $2400 $1400 JAGUAR V-12 NON HE $7800 (372) $8800 (401) $8800 (432) $10200 (502) $13400 (647)
lost formatting above go to below, to see what I meant
ENGINE PRICE LIST
I have a 1992 HE so I would be just fine with stage II or III
my AH I built a stage III engine by my self... on the cheap... at 9k rpm some thought it was a stage IV but I drove it fine on the street... ( keeping it under 4.5k) not on the cam yet... it was ok
do not have the money at this time...
just ship these guys your V12 and a nice check...
they will sell you a kit for you to put together too ( you have to send them your engine parts) they work them over and send them back for you to assemble...
heads cams and the lot
they also offer a stroker kit for the 5.3 to 5958cc so a satge II stroked would put out what?
stage I SRE Stage II Stage III Stage IV core kit dis
JAGUAR 3.8, 4.2 $6800 (291) $7600 (312) $7600 (331) $9000 (351) $11600 (412) $2000 $1200 JAGUAR V-12 HE $7800 (338) $8800 (362) $8800 (396) $10200 (464) $13400 (572) $2400 $1400 JAGUAR V-12 NON HE $7800 (372) $8800 (401) $8800 (432) $10200 (502) $13400 (647)
lost formatting above go to below, to see what I meant
ENGINE PRICE LIST
jon exactly what does your stage 111 consist of, mods etc?
#389
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BTW I should have my 4L60e back in 2 weeks, its being built now, Xmas plan is to replace the TH400
I have also been playing with my MegaSquirt, Just ordered the new simulator . Phase 1 is to get the 5.3 running on fuel only then getting ignition running. Hoping I can get it running on the stock Marelli trigger so I do not have to change the trigger wheel.
Once I have my stock engine running on the MS I will then rebuild and can re-tune for the 6.0L
Ron have you had experience with HFP injectors? I am thinking of using these, much cheaper than having my original injectors cleaned, they want over $500 to clean my injectors.
HFP 24lb Flow Matched Fuel Injectors Jeep Cherokee Dodge Dakota RAM VAN 5 2 5 9 | eBay
I have also been playing with my MegaSquirt, Just ordered the new simulator . Phase 1 is to get the 5.3 running on fuel only then getting ignition running. Hoping I can get it running on the stock Marelli trigger so I do not have to change the trigger wheel.
Once I have my stock engine running on the MS I will then rebuild and can re-tune for the 6.0L
Ron have you had experience with HFP injectors? I am thinking of using these, much cheaper than having my original injectors cleaned, they want over $500 to clean my injectors.
HFP 24lb Flow Matched Fuel Injectors Jeep Cherokee Dodge Dakota RAM VAN 5 2 5 9 | eBay
and i dont think anyone here is gonna make 450hp much less 500hp ,except the super modded engines pictured earlier.
will you dyno and show results with us,when you are up and running?
Last edited by ronbros; 11-27-2014 at 11:55 AM.
#390
I know a guy here who put a 6.0L in his XJS Targa car and was making 400HP with only exhaust, intake and ECU.
The engine will be built for torque not peak HP, so I don't care if I make 390hp or 450hp. I have one of the best Jaguar V12 engine builders providing advice, so I think I have good chance of building a strong engine.
Yes I will have the car dynoed and share the results. I have a lot of work to do and a limited budget so it will take me a while. It's going to cost me the best part of $10K on top of the 6.0L purchase price, and this is doing most of the work myself.
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ronbros (11-27-2014)
#391
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I have measured my 6.0L injectors and these are a direct fit, same length and O ring size. High Z but with the MS2 no problems.
I know a guy here who put a 6.0L in his XJS Targa car and was making 400HP with only exhaust, intake and ECU.
The engine will be built for torque not peak HP, so I don't care if I make 390hp or 450hp. I have one of the best Jaguar V12 engine builders providing advice, so I think I have good chance of building a strong engine.
Yes I will have the car dynoed and share the results. I have a lot of work to do and a limited budget so it will take me a while. It's going to cost me the best part of $10K on top of the 6.0L purchase price, and this is doing most of the work myself.
I know a guy here who put a 6.0L in his XJS Targa car and was making 400HP with only exhaust, intake and ECU.
The engine will be built for torque not peak HP, so I don't care if I make 390hp or 450hp. I have one of the best Jaguar V12 engine builders providing advice, so I think I have good chance of building a strong engine.
Yes I will have the car dynoed and share the results. I have a lot of work to do and a limited budget so it will take me a while. It's going to cost me the best part of $10K on top of the 6.0L purchase price, and this is doing most of the work myself.
will you use an engine dyno or a chassis dyno, either way we can figure it out, sounds exciting, always love to hear an engine doing it thing!
just reread you will have the car dynod, great.
#392
#393
Warren, this maybe a little of topic but I made my own Injector cleaner out of some old air line fittings, a couple of small spade connectors a push button switch and a 9v battery. Using compressed air and some solvents at 29psi, then flushed with fresh fuel made a world of difference to my injectors. I sprayed them into a clear PET bottle to see what was happening, it worked so well I donated it to a mechanic friend who now swears buy it. I still have the bottle here with all crap that I washed out of them.
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yes katoh, the Ford/Jag V12s are a much improved engine, they had the money for some R&D.
some say ford used cast crankshafts in later yrs, but i dont think we need any better,Jag V12s never had crank problems anyway(oiling probs.YES).
and if the word gets around 5.3s wont have much value, i personally scrapped 3 complete engines, got $75. dollars for the bunch, and cried to see them go into a large shredding machine.
Last edited by ronbros; 11-29-2014 at 01:06 PM.
#396
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that is what i did on my v12 20yrs ago but made custom alumnium rails,6.0L rails were not available then!
at that time i had my race shop, and owned a nice fuel injector flow bench(made in Australia), very handy machine.
test for injector flow in CCs at any variable speed (RPM), adjustable pressure, along with adjustable pulse width.
bear in mind just because an injector squirts fuel doesnt mean they are all equal, think about if one or two are down 10cc, those cylinders could run lean at hi output!
and i have seen new injectors not balanced evenly!
and i could show some , that hi pressures and hi rpm,the injector could go into partial lock up, 1/2 open,1/2 closed, and instant lean, at 50% fuel flow!
altho i'm sure you will never reach that level of performance where hydraulic phenomener can occur!
ques; when you say 4 nozzle injector, or did you mean 4 hole injector?
Last edited by ronbros; 11-29-2014 at 01:32 PM.
#397
If you are interested Norman Lutz usually has one lying around, I will email him and see what he has.
Yes the 6.0L engine is a world away from the 5.3L HE. Buying a whole engine allows you to rebuild the new one then swap over. I want to keep my original engine number so I will be rebuilding my original engine.
Ron yes I mean 4 hole
#399
depends on the rpm.... at 5252rpm they are equal....
now if you have restrictive breathing an a bad torque curve that is falling off as rpms rise you could have more peak torque below 5252 than the HP you have at 5252 rpm
the intakes really could be opened up as they say.... that would solve that!
HP = torque * RPM / 5252
HINCE WHEN RPM = 5252 HP = TORQUE
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ronbros (12-02-2014)
#400
Thought you might like this, me trying to find out about an under load misfire, this didnt work it was for a totally different reason. https://www.facebook.com/video.php?v=10151339138317178
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ronbros (12-02-2014)