XJ XJ8 / XJR ( X308 ) 1997 - 2003

Water/methanol kits-do they really work?

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  #21  
Old 08-27-2011, 04:14 PM
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Originally Posted by Viapa
I just switched from a K&N air filter element to a K&N air intake system which has jumped the boost back up to 18psi's. The stock airbox was restricting air flow. I will take it to the Dynojet shop on Thursday to do a test for there HP/TQ numbers.
BIP's Dyno is a Dyno Dynamics which measured about 35hp lower than the other dyno I had it on. Let me know how it works. Have a look at my car while you are at Buckhead. He can also show you my dyno sheet. Let us know what you come up with. Tony should be able to take care of you.
 
  #22  
Old 08-27-2011, 04:17 PM
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I'd be interested to see the A/F ratio. Can you post a dyno sheet? I know my A/F was super screwy after the eurotek tune and I think I left alot on the table.
 
  #23  
Old 08-27-2011, 10:09 PM
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Originally Posted by Thundercat
I'd be interested to see the A/F ratio. Can you post a dyno sheet? I know my A/F was super screwy after the eurotek tune and I think I left alot on the table.
How did you raise your rear wheel horsepower to 371? Also what was your torque rating?
 
  #24  
Old 08-28-2011, 09:09 AM
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Here is the dyno run at BIP. Buckhead Imports's Photos - Dyno Sheets | Facebook . I think your tune is the problem. I don't like Eurotek's tune. I don't remember the torque # from my first dyno run but hp was 376 on dynojet.
 
  #25  
Old 08-29-2011, 09:17 PM
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Originally Posted by Thundercat
Here is the dyno run at BIP. Buckhead Imports's Photos - Dyno Sheets | Facebook . I think your tune is the problem. I don't like Eurotek's tune. I don't remember the torque # from my first dyno run but hp was 376 on dynojet.
Isn't your tune a Eurotek? If not, who is it? I am waiting on Buckhead Imports to finish up there tune for the XJR then there going update mine from Eurotek.
 
  #26  
Old 08-29-2011, 10:28 PM
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Yeah mine is currently eurotek and i don't care for it. I don't think it was well thought out when it was created. It leaves alot of power on the table. Tony at BIP won't steer you wrong. you need to tune for water/meth and increased boost. more fuel etc. i don't care what anyone says, it needs to happen. I think eurotek is a "box tune" if that makes any sense. Stay tuned in for performance mods on project overboost and I think you will be happy with what it offers the both of us. p.s. 310 on the buckhead dyno is no joke either, thats some power.
 
  #27  
Old 08-30-2011, 09:24 AM
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Just watch out for meth when used before the eaton as the meth injection will literally eat the rotor coating right off it. I have seen it happen on many occassions and it will happen, its a very fragile coating.

As for the tunes I dont like euroteks very minimal time spent on it not alot done. I hear from Tony that his will be pretty great. I have a guy working on a tune for the XJR that should be awesome.

To me your numbers seem a bit low but thts me lol, I took my 99 XJR that has 45k on it and only mod I have is custom belt tensioner (stock one is too weak allows slippage so I designed my own) and a 2.5 catback exhaust with X-pipe and a fresh tune up. Mine made 339rwhp and 341 rwtq on a dynojet and thts through a stock airfilter. I am designing my own 3.5 true cold air inlet right now tht should bring power up a few ponies as well.
 
  #28  
Old 08-30-2011, 10:52 AM
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I have custom made 3.5" intake pipes that go from the throttle to the air meter. Then all you have to do is make up plumbing to get air in from outside.

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  #29  
Old 08-30-2011, 11:16 AM
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Originally Posted by Jaxkr
I have custom made 3.5" intake pipes that go from the throttle to the air meter. Then all you have to do is make up plumbing to get air in from outside.




That sure is pretty.
 
  #30  
Old 08-30-2011, 02:15 PM
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Yeah those are very nice looking have to let me know what your wanting for one.
 
  #31  
Old 08-30-2011, 08:52 PM
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Hello fellow members! Well as for the dyne stats they still remain the same BUT the car has been transformed into a BEAST! The guys at BIP (Jason, Tony & Greg) explained how there Dyno works as compared to a Dynojet. They stated the dyno numbers will be lower than Dynojet. What I've learned is you have to drive the car first to feel the difference and you can DEFINITELY tell the difference! I'm going to take it to the Dynolab on Thursday for testing. My guess is the car will read 355 to 360 at the rear wheel and the torque will read 360 to 370 lb/ft. Stay tuned!
 
  #32  
Old 08-31-2011, 03:29 AM
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Excellent set up , this is the coolest intake I have ever seen on a Jag
 
  #33  
Old 08-31-2011, 09:46 AM
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Originally Posted by Viapa
Hello fellow members! Well as for the dyne stats they still remain the same BUT the car has been transformed into a BEAST! The guys at BIP (Jason, Tony & Greg) explained how there Dyno works as compared to a Dynojet. They stated the dyno numbers will be lower than Dynojet. What I've learned is you have to drive the car first to feel the difference and you can DEFINITELY tell the difference! I'm going to take it to the Dynolab on Thursday for testing. My guess is the car will read 355 to 360 at the rear wheel and the torque will read 360 to 370 lb/ft. Stay tuned!
Glad to see you got some good news. Let us know what the dynojet says!
 
  #34  
Old 08-31-2011, 04:05 PM
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Originally Posted by XJR-0220
Yeah those are very nice looking have to let me know what your wanting for one.
I was thinking the same thing....
 
  #35  
Old 08-31-2011, 09:11 PM
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Originally Posted by Thundercat
Glad to see you got some good news. Let us know what the dynojet says!
What kind of Boost Cooler do you use? Snow Performance Boost Juice or 50/50 Windshield Washer fluid? Also how often do you have to refill your reservoir with fluid?
 
  #36  
Old 08-31-2011, 09:18 PM
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I make my own boost juice with washer solvent & heet dry gas. It is something I check on the weekend. The advantage I have is using the factory resevoir you have a built in low level sensor. If the light comes on I just turn off the switch I have in the console.
 
  #37  
Old 09-01-2011, 10:15 AM
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I went and bought two 5 gallon containers of methanol from VP fuels, i just mix it with distilled water. I use boost juice on occasion too. Try the nitromethanol next time you order, it's expensive but you need to try it at least once.
 
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