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First XJR 1998 640HP 4.0

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Old Apr 30, 2010 | 04:53 PM
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Default First XJR 1998 640HP 4.0

Just finished, a two year build left the chassis dyno late last night, Smiling! quite smooth and very fast just hope the new trans can handle it cause i think im in LOVE!
 
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Old Apr 30, 2010 | 06:00 PM
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Pics?
 
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Old Apr 30, 2010 | 06:44 PM
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WOW, sounds like a sweet ride. I would like to see pics too
 
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Old May 1, 2010 | 03:29 AM
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Welcome, yep pics are requested lol
 
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Old May 1, 2010 | 03:50 AM
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Welcome David. You are going to have to post up some pics, together with the modifications specs, that got you up to 640bhp out of a 4.0l.
 
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Old May 1, 2010 | 04:47 AM
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Welcome to the forum
 
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Old May 1, 2010 | 08:30 AM
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What mods did you do to get that much power, we are all interested??
 
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Old May 1, 2010 | 11:02 AM
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Just like everyone else, you gotta tell all!
 
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Old May 1, 2010 | 02:32 PM
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pics and dyno sheet
 
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Old May 2, 2010 | 01:25 PM
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Thanks for all the coments! have several cellphone pics as soon as my fabracator tells me wich ones i can publish ill get them out, the car is currently on my hoist with no springs or brakes just tore it down fri after several top end runs down 75 weve decided a brake upgrade is MANDITORY!

Here is a run down of what we've done to reach those numbers! taken a low milage block with the stock crank, custom Rods and Diamond pistons, cyl heads and cam shafts have been slightly massaged by a well none local engine builder, removed the stock intake and intercoolers and built a custom sheetmetal intake using a ford cobra throttle body, twin 76mm turbos and an external heat exchanger, using twim GT500l eletric fuel pumps and all controled by an Big Stuff 3 control box this system has the capicity to creat 24lbs of boost but the stock block has us a little nervous so all pulls were dun at 11bls of boost or less! AF maintained a constant 12.5 Our goal is to get it to live on 93 octane or hopefully natural gas.
 
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Old May 2, 2010 | 08:36 PM
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Howdy David

Welcome to the forum!
 
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Old May 3, 2010 | 12:06 AM
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Great Stuff, Qudos to you, must have been some venture!

Would love to see pictures, and one question, what was the wheel hp?

Andre.
 
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Old May 26, 2010 | 04:30 PM
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Please post pics, dyno sheets, etc. Would love to see the details. Pics or it didn't happen
 
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Old May 27, 2010 | 07:39 AM
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Wow, sounds very interesting - I'd very much like to see pics as well!

All the Best,
 
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Old May 30, 2010 | 11:15 AM
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how do we post them on here? I can't figure it, or do they all have to posted elsewhere and just linked up? I don't have a host, but would like to post a picture here or there, any suggestions?
640HP, holy crap!
 
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Old May 31, 2010 | 08:31 AM
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640hp...that has got to be a rush! If my leadfoot wife got near that car the tires would be gone within minutes!
 
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Old Jun 17, 2010 | 04:36 PM
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twin 76's? Turn them up and get 1200 rwhp!
 
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Old Jun 21, 2010 | 08:21 PM
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I think a youtube vid is in order!! (dont forget the link) hehe
 
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Old Jun 24, 2010 | 12:13 AM
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Hello and wellcome to the forum. Seems to be an interesting and unique car.

Greetings from Austria
George
 
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