Quest For 450 Horsepower
#21
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Of course talking SAE Net//BHP....What will it take?....Don't want to change any exhaust components if possible...No NOS or meth injection...Aftermarket intake, pulley, remap, SC porting? Anyone here think they have achieved this number, or close to it? What is the exact HP of the R model from year to year?
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Panthro (10-26-2016)
#22
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I've done most of the tried and tested bolt ons for our engine and would recommend the following: 1.7lb pulley (not 2.5lb as it overspins the SC and reduces efficiency), Caldoofy intake tube and K&N filter, high flow cats and an ecu tune. This will give you very close to 450bhp at the crank. In my opinion porting the the supercharger on our cars is pointless and will only increase noise as the Gen IV Eaton does not leave any benefit for porting. As a reference, most stock STRs/XJRs make about 320rwhp and with the above bolt ons you can see approx 360rwhp as shown by some dyno threads on this site.
#23
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im afraid thats not quite the case . as that 22-25bhp is not added to your peak hp , from what I've seen you gain around 7-9 bhp at peak hp . however you do get quite a gain in peak torque and really when moving a heavy car down the road torque is were its at . i have seen a video that proved 9-14bhp added to peak power from the stage 1 caldoofy or quickets in take .
also there is around 20bhp peak to be gained from a free flow exhaust and x pipe witch needs to be in the right place though . so I'm sure a good healthy 4.2sc
will achieve 450 with the right amount of love.
i have seen videos of a xjr with NOS & meth pulling 580bhp but thats only on a cold 1st pass and only whilst the tank has some to give .
you really can't go past avos's TS set up for consistency . there is nothing better!
i would have bought one if i could afford it . but can't see it any time soon
fact is i could sell my jag and pay half the cost of the TS kit on top and just buy a gtr with 700bhp . or an 800bhp falcon typhoon . but i really want a v8 to listen to !
and I'm not giving up this luxury car for for any thing . I'm quite contempt with the jag . id say mine is over 430bhp and thats enough . isn't it ?
also there is around 20bhp peak to be gained from a free flow exhaust and x pipe witch needs to be in the right place though . so I'm sure a good healthy 4.2sc
will achieve 450 with the right amount of love.
i have seen videos of a xjr with NOS & meth pulling 580bhp but thats only on a cold 1st pass and only whilst the tank has some to give .
you really can't go past avos's TS set up for consistency . there is nothing better!
i would have bought one if i could afford it . but can't see it any time soon
fact is i could sell my jag and pay half the cost of the TS kit on top and just buy a gtr with 700bhp . or an 800bhp falcon typhoon . but i really want a v8 to listen to !
and I'm not giving up this luxury car for for any thing . I'm quite contempt with the jag . id say mine is over 430bhp and thats enough . isn't it ?
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Panthro (10-26-2016)
#24
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Speak with our forum moderator Cambo, he has the means to provide us with custom tunes tweaked by his tuner in Russia and then flash them to our ECUs using IDS. He's currently testing a revised tune with more aggressive spark advance and top speed and torque limiters removed for my TS STR. I'm planning to do a baseline dyno in two weeks, then hopefully install the tune provided it is ready, then go back and test power again. I will share the results if you are interested in the results before going for it. Your cooling upgrades intrigue me, do you have any pictures of your additional radiator set up?
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Panthro (10-26-2016)
#25
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Speak with our forum moderator Cambo, he has the means to provide us with custom tunes tweaked by his tuner in Russia and then flash them to our ECUs using IDS. He's currently testing a revised tune with more aggressive spark advance and top speed and torque limiters removed for my TS STR. I'm planning to do a baseline dyno in two weeks, then hopefully install the tune provided it is ready, then go back and test power again. I will share the results if you are interested in the results before going for it. Your cooling upgrades intrigue me, do you have any pictures of your additional radiator set up?
The additional radiator is in series with the original IC radiator and I have added an upgraded IC pump.
The two 6" fans are run off an adjustable thermostat mounted in the main radiator and come on when the temp in the main radiator goes a bit higher than when the engine is running at idle.
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Panthro (10-26-2016)
#26
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That's a tidy I/c set up there .
Sadly that will not fit in the S type . Although I wonder functional as it may be does it restrict any air flow to the rest of the radiator pack when the fans are not running ? As the fans alone look to close off a sizeable area .
I've just done the the I/c pump upgrade ,
And am in the process of getting a 4liter alloy tank fabricated for extra I/c coolant capacity to fit under the left front undergaurd , just below the air box .
There is a nice square empty space , So I'm making use of it should help at least .
Sadly that will not fit in the S type . Although I wonder functional as it may be does it restrict any air flow to the rest of the radiator pack when the fans are not running ? As the fans alone look to close off a sizeable area .
I've just done the the I/c pump upgrade ,
And am in the process of getting a 4liter alloy tank fabricated for extra I/c coolant capacity to fit under the left front undergaurd , just below the air box .
There is a nice square empty space , So I'm making use of it should help at least .
The following 2 users liked this post by Datsports:
jackra_1 (09-06-2016),
JagSTR2004 (09-06-2016)
#27
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Speak with our forum moderator Cambo, he has the means to provide us with custom tunes tweaked by his tuner in Russia and then flash them to our ECUs using IDS. He's currently testing a revised tune with more aggressive spark advance and top speed and torque limiters removed for my TS STR. I'm planning to do a baseline dyno in two weeks, then hopefully install the tune provided it is ready, then go back and test power again. I will share the results if you are interested in the results before going for it. Your cooling upgrades intrigue me, do you have any pictures of your additional radiator set up?
Defiantly keep us up dated . Thanks. I'm looking in to
Cambo's tune also . I Look forward to some updates cheers .
#28
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That's a tidy I/c set up there .
Sadly that will not fit in the S type . Although I wonder functional as it may be does it restrict any air flow to the rest of the radiator pack when the fans are not running ? As the fans alone look to close off a sizeable area .
I've just done the the I/c pump upgrade ,
And am in the process of getting a 4liter alloy tank fabricated for extra I/c coolant capacity to fit under the left front undergaurd , just below the air box .
There is a nice square empty space , So I'm making use of it should help at least .
Sadly that will not fit in the S type . Although I wonder functional as it may be does it restrict any air flow to the rest of the radiator pack when the fans are not running ? As the fans alone look to close off a sizeable area .
I've just done the the I/c pump upgrade ,
And am in the process of getting a 4liter alloy tank fabricated for extra I/c coolant capacity to fit under the left front undergaurd , just below the air box .
There is a nice square empty space , So I'm making use of it should help at least .
There is quite a space for incoming air below the tag plate which btw I have added a metal mesh to help protect. Thats a stray tie you see!
When all 3 fans are running the airflow is pretty amazing to feel.
I thought about the setup you describe as I see a number of people go that route. I decided I wanted extra coolant volume as well as extra cooling and was able to fit the extra radiator with some finagling.
#29
![Default](/forum/images/icons/icon1.gif)
That sounds very interesting!
The additional radiator is in series with the original IC radiator and I have added an upgraded IC pump.
The two 6" fans are run off an adjustable thermostat mounted in the main radiator and come on when the temp in the main radiator goes a bit higher than when the engine is running at idle.
The additional radiator is in series with the original IC radiator and I have added an upgraded IC pump.
The two 6" fans are run off an adjustable thermostat mounted in the main radiator and come on when the temp in the main radiator goes a bit higher than when the engine is running at idle.
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jackra_1 (09-06-2016)
#30
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That's a tidy I/c set up there .
Sadly that will not fit in the S type . Although I wonder functional as it may be does it restrict any air flow to the rest of the radiator pack when the fans are not running ? As the fans alone look to close off a sizeable area .
I've just done the the I/c pump upgrade ,
And am in the process of getting a 4liter alloy tank fabricated for extra I/c coolant capacity to fit under the left front undergaurd , just below the air box .
There is a nice square empty space , So I'm making use of it should help at least .
Sadly that will not fit in the S type . Although I wonder functional as it may be does it restrict any air flow to the rest of the radiator pack when the fans are not running ? As the fans alone look to close off a sizeable area .
I've just done the the I/c pump upgrade ,
And am in the process of getting a 4liter alloy tank fabricated for extra I/c coolant capacity to fit under the left front undergaurd , just below the air box .
There is a nice square empty space , So I'm making use of it should help at least .
#31
![Default](/forum/images/icons/icon1.gif)
I hope so, from what I know there's only a handful of TS STRs so is quite a rare beast, especially as Avos has stopped making his kits for now. I'll definitely keep you updated when I get dyno numbers. Also, I think you were seriously overestimating the cost of a TS. It's no way near half the cost of a GTR. Sure Avos' 2.6 kit isn't cheap, but there are other blower options; e.g. a 2.1 KB which you could retrofit with a few custom parts using the stock inlet. Avos' first conversion on a STR was actually with this blower and using a tame pulley ratio, it made easily over 530bhp. If you're interested in such a project there's a good condition 2.1KB on eBay now for around 2000 USD. It's easily the best power modification you could do in these cars.
Last edited by JagSTR2004; 09-06-2016 at 04:58 PM.
#32
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I hope so, from what I know there's only a handful of TS STRs so is quite a rare beast, especially as Avos has stopped making his kits for now. I'll definitely keep you updated when I get dyno numbers. Also, I think you were seriously overestimating the cost of a TS. It's no way near half the cost of a GTR. Sure Avos' 2.6 kit isn't cheap, but there are other blower options; e.g. a 2.1 KB which you could retrofit with a few custom parts using the stock inlet. Avos' first conversion on a STR was actually with this blower and using a tame pulley ratio, it made easily over 530bhp. If you're interested in such a project there's a good condition 2.1KB on eBay now for around 2000 USD. It's easily the best power modification you could do in these cars.
and a mint one with 80000km & rb26dett mild tune at 400whp.for $23k.
my neighbor bought his R32 rb26det 90000km with 750hp built for 850hp for $20k nzd.
my STR is valued at between $16-18k nzd so i wouldn't have to pump much extra in to be in a GTR with substantial and/or excessive power .
a full on silvia s15 drift car here with 800hp is so common its a joke . and they only fetch $15-20k . horse power is cheep but not with the STR!
but like i said i love the comfort and tech of the jag ! so ill stick with it .
but sadly just with the heaton . i should have bought avos's kit minus the blower , when i found out he was only going to produce them for about another year back then . as the blower is over half the price of the kit . and also a lot of the freight price . and then looked out for a blower later . i hope he does another run in the future . as i may still be persuaded to go that way .
as the rarity of the STR is a big reason i bought one , and a TS STR just intrigues me . i will have dimensions and diagrams for the I/C tank and photos soon . could even make two if you want . it will bolt in with no extra holes drilled in the car , as that just bites me to do atrocities to a good car shell.
#33
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Very good thinking! The extra coolant capacity will definitely give us a nice buffer against heat soak when driving hard. I've been looking at buying an alloy coolant tank off eBay to add to my coolant circuit but hadn't thought about where I could add it other than the boot. If you post some pics of your set up once it's done it would definitely give me some ideas.
Last edited by Datsports; 09-06-2016 at 11:30 PM.
#34
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[QUOTE=JagSTR2004;1529983]I've done most of the tried and tested bolt ons for our engine and would recommend the following: 1.7lb pulley (not 2.5lb as it overspins the SC and reduces efficiency), Caldoofy intake tube and K&N filter, high flow cats and an ecu tune. This will give you very close to 450bhp at the crank. ///// This looks like the best possible way to do it...If you install the aftermarket cats, not to expensive either...What about the front cats as far as restriction? Has anyone just gutted the rear cats or would that throw a code?
#35
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I have a Passport G Timer which I presume is similar to some apps you can run on smart phones.
Last year the best I could get 0-60 on a slightly uphill road was 6.03 seconds.
Just now on two runs I got 5.75 each run on the same road as last year.
Also achieved a little wheel spin for the 1st time. I had S mode on and anti skid off same as last year.
Same 1/4 tank of Shell V power 93.
Very similar weather conditions ambient temp about 72 with low humidity.
About the same load in the car. Only difference is the fact that I cleaned the charge coolers as well as elbow, throttle body etc. Oh and the stage 1 intake that I made. Flap inside air box removed.
I will do the same runs when I eventually get my other SC rebuilt and installed. I will rebuild it this weekend but installing it will have to wait a while.
Last year the best I could get 0-60 on a slightly uphill road was 6.03 seconds.
Just now on two runs I got 5.75 each run on the same road as last year.
Also achieved a little wheel spin for the 1st time. I had S mode on and anti skid off same as last year.
Same 1/4 tank of Shell V power 93.
Very similar weather conditions ambient temp about 72 with low humidity.
About the same load in the car. Only difference is the fact that I cleaned the charge coolers as well as elbow, throttle body etc. Oh and the stage 1 intake that I made. Flap inside air box removed.
I will do the same runs when I eventually get my other SC rebuilt and installed. I will rebuild it this weekend but installing it will have to wait a while.
#36
#37
#38
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I have read all the published 0-60 times. Some at least are based on UK testing where higher octane fuel is available.
I also understand that the US Jaguar models are actually de-tuned as compared to UK models.
The point about using the Escort device is one of relativity as opposed to absolute value. I doubt the absolute value accuracy.
I also understand that the US Jaguar models are actually de-tuned as compared to UK models.
The point about using the Escort device is one of relativity as opposed to absolute value. I doubt the absolute value accuracy.
Last edited by jackra_1; 09-07-2016 at 03:25 PM.
#39
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dude i got a quote from avos about a year ago . and its great value for HP don't get me wrong . i have the quote in front of me this includes the injectors and max bored TB , and with shipping and the dollar to euro exchange blew me out of the water. i won't chuck avos's TS no#'s out there . but to give you an idea , an immaculate R32 here is plenty full the market is flooded and goes for $18-27k nzd . i just looked at one with a forged rb30 with 550whp & 90000km for $20k it said can be turned up !
and a mint one with 80000km & rb26dett mild tune at 400whp.for $23k.
my neighbor bought his R32 rb26det 90000km with 750hp built for 850hp for $20k nzd.
my STR is valued at between $16-18k nzd so i wouldn't have to pump much extra in to be in a GTR with substantial and/or excessive power .
a full on silvia s15 drift car here with 800hp is so common its a joke . and they only fetch $15-20k . horse power is cheep but not with the STR!
but like i said i love the comfort and tech of the jag ! so ill stick with it .
but sadly just with the heaton . i should have bought avos's kit minus the blower , when i found out he was only going to produce them for about another year back then . as the blower is over half the price of the kit . and also a lot of the freight price . and then looked out for a blower later . i hope he does another run in the future . as i may still be persuaded to go that way .
as the rarity of the STR is a big reason i bought one , and a TS STR just intrigues me . i will have dimensions and diagrams for the I/C tank and photos soon . could even make two if you want . it will bolt in with no extra holes drilled in the car , as that just bites me to do atrocities to a good car shell.
and a mint one with 80000km & rb26dett mild tune at 400whp.for $23k.
my neighbor bought his R32 rb26det 90000km with 750hp built for 850hp for $20k nzd.
my STR is valued at between $16-18k nzd so i wouldn't have to pump much extra in to be in a GTR with substantial and/or excessive power .
a full on silvia s15 drift car here with 800hp is so common its a joke . and they only fetch $15-20k . horse power is cheep but not with the STR!
but like i said i love the comfort and tech of the jag ! so ill stick with it .
but sadly just with the heaton . i should have bought avos's kit minus the blower , when i found out he was only going to produce them for about another year back then . as the blower is over half the price of the kit . and also a lot of the freight price . and then looked out for a blower later . i hope he does another run in the future . as i may still be persuaded to go that way .
as the rarity of the STR is a big reason i bought one , and a TS STR just intrigues me . i will have dimensions and diagrams for the I/C tank and photos soon . could even make two if you want . it will bolt in with no extra holes drilled in the car , as that just bites me to do atrocities to a good car shell.
![Big Grin](https://www.jaguarforums.com/forum/images/smilies/biggrin.gif)
I'd definitely be interested in a bolt-in additional intercooler tank, post some pics up when you can. I know exactly what you mean about drilling holes!
#40
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Regarding the tune for the STR & XJR, it's not been tested yet so until it has I can't really say too much more about it.
I've been away for work for most of the past 2 months so it's not been possible to get it in the car. Hopefully in the next couple of weeks I'll be able to do something with it.
I've been away for work for most of the past 2 months so it's not been possible to get it in the car. Hopefully in the next couple of weeks I'll be able to do something with it.