Important! : Grp N rear dampers - raise the car?

1. user_15516 Saxperience Post Whore Joined: Apr 2007 Posts: 6640 Integra DC5R & VTS

   #1 9th September 2009, 17:39

   Running Bilstein Grp N fronts and 35mm 155lb Faulkner springs. After taking some measurements at standard and once the above setup has settled, I calculate the car has dropped 33 - 34mm.
   
   
   
   Car is going in tomorrow morning to have the Grp N rears fitted and rear dropping - was going to ask them to drop it 33mm but I understand these stiffer dampers can actually raise the rear a tad? Is it worth going a few mm lower to compensate for this?
   
   Cheers
2. Ashleyp Saxperience Hardcore! Joined: Apr 2008 Bedford & Manchester Posts: 17504

   #2 9th September 2009, 17:45

   your front will sort it self out once the springs settle (providing theyre new)
   
   just go down 35 on rear, even if its 5mm out, you wont notice
   
   edit, just seen youve left the springs to settle
3. user_15516 Saxperience Post Whore Joined: Apr 2007 Posts: 6640 Integra DC5R & VTS

   #3 9th September 2009, 17:48

   Springs (brand new) and dampers were fitted on Friday night - done just under 100 miles since then I rekon. Should have settled by now?
   
   I'm happy with the height at the front, just want the rear dropped near enough the same as the front.
4. user_4681 Saxperience Post Whore Joined: Dec 2004 Grimsby United Kingdom (England) Posts: 5489 SUPERCHARGED saxo vts

   #4 9th September 2009, 18:11

   front will drop a touch when the rear is droped.
5. johnnyg_vts Established Member Joined: Dec 2006 Fleetwood Posts: 2244 2002 Saxo VTS

   #5 9th September 2009, 19:04

   id buy some silver bulbs tbh
6. Steve Saxperience Hardcore! Joined: Mar 2005 Newcastle Upon Tyne Posts: 19910 CW Honda Integra DC5

   #6 9th September 2009, 19:06

   group n's pushed the rear of my car up.
   
   Dont know why your fitting them with standard torsion bars, and not getting thickers soon.
   Way overdampened imo
   
   Glad i inspired you with your car however
   Wilwood 4pots next?
7. user_15516 Saxperience Post Whore Joined: Apr 2007 Posts: 6640 Integra DC5R & VTS

   #7 9th September 2009, 19:09

   Quote:

   Originally Posted by Steve_VTS group n's pushed the rear of my car up. Dont know why your fitting them with standard torsion bars, and not getting thickers soon. Way overdampened imo Glad i inspired you with your car however

   Got them cheap enough so may aswell give em a try. Ron has offered me a trade + cash my way if I'm not too keen on them.
   
   Pea shooter is going on the morn, just a set of wilwoods to fit next... iJest
8. Steve Saxperience Hardcore! Joined: Mar 2005 Newcastle Upon Tyne Posts: 19910 CW Honda Integra DC5

   #8 9th September 2009, 19:14

   Anything is going to feel awesome over standard.
   but if you drive it properly you'll see what i mean by over dampened
9. user_15516 Saxperience Post Whore Joined: Apr 2007 Posts: 6640 Integra DC5R & VTS

   #9 9th September 2009, 19:22

   Quote:

   Originally Posted by Steve_VTS but if you drive it properly you'll see what i mean by over dampened

   Did you find it was tail happy?
10. Steve Saxperience Hardcore! Joined: Mar 2005 Newcastle Upon Tyne Posts: 19910 CW Honda Integra DC5

    #10 9th September 2009, 19:37

    Quote:

    Originally Posted by LeeumH Did you find it was tail happy?

    inside rear wheel would slide and cause the rear to start coming out. Nothing major, but nothing you really want happening. Only does it when pushing it really. But isnt that the whole point of uprating suspension, to push the car harder?!
    
    This is on the gas aswel non of this lift off oversteer shit before anyone comes out with, your lifting off the gas in corners.
    
    Stuck the 21mm bars in and all that shit was gone
11. saxo_ron Saxperience Forum Bum Joined: Jun 2007 Newcastle Upon Tyne Posts: 3017 Honda DC5, Gruppe M and j's racing

    #11 9th September 2009, 20:34

    Leeum the offer stands yo
12. user_15516 Saxperience Post Whore Joined: Apr 2007 Posts: 6640 Integra DC5R & VTS

    #12 9th September 2009, 21:21

    Will keep you in mind if I decide to get rid of them Ronneth.
    
    Spoke to AlexR and he rekons with the Grp N rear dampers taking up the 'slack' the rear has as standard, probably looking at it being raised 5mm or so. Gonna go 35mm on the back - should be spot on I rekon.
13. saxo_ron Saxperience Forum Bum Joined: Jun 2007 Newcastle Upon Tyne Posts: 3017 Honda DC5, Gruppe M and j's racing

    #13 9th September 2009, 21:35

    Lets hope not lol
14. user_15516 Saxperience Post Whore Joined: Apr 2007 Posts: 6640 Integra DC5R & VTS

    #14 9th September 2009, 21:51

    Quote:

    Originally Posted by saxo_ron Lets hope not lol

    haha! Two nails in one of those pilots ron, negative feedback en route.
15. Aron Saxperience Forum Bum Joined: Feb 2007 Nuneaton Posts: 3554 EP3 Civic

    #15 10th September 2009, 08:43

    get some real bars that match the dampers and there wont be any lift.
16. Steve Saxperience Hardcore! Joined: Mar 2005 Newcastle Upon Tyne Posts: 19910 CW Honda Integra DC5

    #16 10th September 2009, 10:09

    also need to make sure the 21mm bars are the proper lb. (or what ever size bar you get)
    Al use 21mm in this example.
    
    There are some dodgy bars about which are 21mm in diametre kicking about but not the correct lb.
    Depends how they are manufactured.
17. Aron Saxperience Forum Bum Joined: Feb 2007 Nuneaton Posts: 3554 EP3 Civic

    #17 10th September 2009, 10:13

    Yea stick to good makes. JP and his Dad have worked out that his 21mm's are not as high poundage rating but they do not need to be as they are more rigid.
18. jpsaxo Saxperience Post Whore Joined: Oct 2005 Sydney Posts: 8525 Mango Westcoast

    #18 10th September 2009, 11:28

    22mm Aron
19. Aron Saxperience Forum Bum Joined: Feb 2007 Nuneaton Posts: 3554 EP3 Civic

    #19 10th September 2009, 18:22

    i am sorry Joshua, 22mm's
20. jpsaxo Saxperience Post Whore Joined: Oct 2005 Sydney Posts: 8525 Mango Westcoast

    #20 11th September 2009, 13:55

    Lol They were weird when lowering thats all im saying!
21. AlexR Saxperience Post Whore Joined: Aug 2004 Kunt & Sorrey Posts: 5763 Rep mobiles & Joes ma

    #21 11th September 2009, 14:14

    I never said anything about slack, the bilsteins contain high gas pressure which increases the effective total spring rate of the axle they are fitted to, this obviously means that the ride height will increase, the droop is reduced.
    
    As for fitting uprated bars, obviously they will compress less when there is weight on them, so you need to set the trailing arms lower to compensate for that. As a rough rule, i fit 21mm bars with 15-20mm "lower" trailing arm to bodywork measurement for the same ride height as standard bars. 22s barely compress at all.
22. Steve Saxperience Hardcore! Joined: Mar 2005 Newcastle Upon Tyne Posts: 19910 CW Honda Integra DC5

    #22 11th September 2009, 14:20

    Alex can you remember what lb standard bars are?
23. AlexR Saxperience Post Whore Joined: Aug 2004 Kunt & Sorrey Posts: 5763 Rep mobiles & Joes ma

    #23 11th September 2009, 14:48

    Sandy Brown measured wheel rates.
    
    19mm 110lb/inch
    21mm 165lb/inch
    22mm 195lb/inch
    23mm 235lb/inch
    
    Front wheel rates, at a really rough calculation:
    
    200lb spring = 240lb/in

    1 user thanked this post: Steve
24. Steve Saxperience Hardcore! Joined: Mar 2005 Newcastle Upon Tyne Posts: 19910 CW Honda Integra DC5

    #24 11th September 2009, 15:00

    *makes use of thanks button*