![]() |
#1
|
|||
|
|||
![]() Hello All!
Long time no see ![]() I'm looking at getting my shocks organized for the Skyline Roadster and could do with some advice. As most of you know it's got a rather large engine(300kgs with gearbox), a 135mm chassis stretch, and 2mm wall with welded 3mm steel floor so its quite a bit heaver than a normal Haynes Roadster. Can anyone please give me some advice as to what spring rates I should be using and also what shock to use? I'm using the standard Sierra build from the book so I think its 14" shocks that are required. So far I think I should be using this... from Page 15 here. http://www.gazshocks.com/images/down...talogue_V2.pdf 4x - 140/095B12 shocks 2x - 2.25'' x 8'' x 350 lbs springs (Maybe higher i.e. 400?) 2x - 2.25'' x 9'' x 250 lbs springs Last edited by Eternal : 1st November 2015 at 04:08 PM. |
#2
|
|||
|
|||
![]() I'm running an s2000 engine and box which is considerably lighter than yours. I run 350 springs up front and 250 at the back. The front feels right but the back to soft [I'm going to change to 300's over the winter]. If I were you I would go at least 400 on the front and 300 on the back. Obviously thus is just my best guess.
|
#3
|
||||
|
||||
![]() Firstly i would say pay the extra and get the protech shocks, much better quality.
I would speak direct to them and tell them what you are building and they will have a better knowledge of what you will need. |
#4
|
||||
|
||||
![]() I'm curious, how do you judge that the rear is too soft? Understeer?
__________________
Albert Haynes Roadster FAQ | Haynes Builder Locations Gallery, build thread in Lithuanian / via Google Translate. |
#5
|
|||
|
|||
![]() Quote:
My engine is set very far back in the chassis I don't know if that makes it worse. |
#6
|
||||
|
||||
![]() Hmm, I would think that since the chassis is rigid, the amount of roll is the same front and back...
__________________
Albert Haynes Roadster FAQ | Haynes Builder Locations Gallery, build thread in Lithuanian / via Google Translate. |
#7
|
|||
|
|||
![]() So going to put the order in tomorrow with Gaz.
What I'm thinking is this. G140/095B12-2 Front - 2x 8” 375lb 2.25” Rear - 2x 9” 275lb 2.25” How does that sound to everyone? I know its quite a bit harder but then again with the steel floor,18" wheels, full cage, chassis stretch, 7.5" diff and bonker 6 pot block I think it makes sense. ![]() All advice more than welcome!! |
#8
|
|||
|
|||
![]() Personally I would go for 300's at the back. But it's all a bit of a guessing game.
Last edited by wylliezx9r : 11th January 2016 at 08:52 PM. |
#9
|
|||
|
|||
![]() the only way you can tell is to calculate it form weights and shock ratio to be sure.
|
![]() |
Thread Tools | |
Display Modes | |
|
|