First Auto-x coming up... Concerned about looseness of side bolsters

[ARLOdwebb]

Hey ZHP fam,


I'm taking my new-to-me ZHP vert to its first Auto-x in a couple of weeks, so I've been going through a routine sort of checklist just to make sure everything goes smoothly and she performs to the best of her abilities. The biggest issue I have, and something I have noticed since I bought the car, is that the side bolsters are not very tight on me. I'm not a big guy (5'11" 140lbs), so I understand why it's not form fitting... but I could really use some way to tighten them up to keep me in place at higher-g corners. After a lot of googling, I can't seem to find any way to fix this issue without throwing down a lot of money for harnesses/replacement seats. I also don't want to do that because I'd like to keep the OEM look.


Does anyone have any experience doing modifications to tighten the seats up for race days?

[slater]

well, there's not really anything to be done, safely, aside from a harness or another seat. M3 seats with adjustable side bolsters.

that, or start gaining weight...

[GoGators]

I regularly compete my zhp. I also find the sides a bit loose, but one thing you can do for under $30 that will help immensely is order a torso belt/strap.

http://www.jegs.com/i/G-FORCE/471/42...oductId=758664

it primarily keeps you from using the steering wheel to keep your body back under braking, but it also helps laterally by keeping you deep in the seat. furthermore, I use it over my seatbelt, helping to cinch down the seatbelt.

[ARLOdwebb]

I regularly compete my zhp. I also find the sides a bit loose, but one thing you can do for under $30 that will help immensely is order a torso belt/strap.

http://www.jegs.com/i/G-FORCE/471/42...oductId=758664

it primarily keeps you from using the steering wheel to keep your body back under braking, but it also helps laterally by keeping you deep in the seat. furthermore, I use it over my seatbelt, helping to cinch down the seatbelt.

This is almost exactly what I was looking for. Can't believe I didn't know it existed until now. Do you have a coupe or vert? I also noticed that my vert won't allow me to lock the seatbelt down. It locks in reaction to g-force, but it doesn't have the feature where you can pull it out all the way and let it ratchet-lock like other cars.

[slater]

I regularly compete my zhp. I also find the sides a bit loose, but one thing you can do for under $30 that will help immensely is order a torso belt/strap.

http://www.jegs.com/i/G-FORCE/471/42...oductId=758664

it primarily keeps you from using the steering wheel to keep your body back under braking, but it also helps laterally by keeping you deep in the seat. furthermore, I use it over my seatbelt, helping to cinch down the seatbelt.

interesting. does it mark up your seat?

[GoGators]

Peter - I have used the strap for probably 25 events, I don't see any scuffs or damage to the seat back.

ARLOdwebb - even better, sedan. ;-P also in this forum I have a build and event chronicle with video that I attempt to keep up. titled: just another sunroof-less ZHP autocross STX build and events chronicle

[05Imola]

Another thing you could do is lock your seatbelt in place. I put my seat back a few inches, lock the seatbelt, twist the bottom around a few times to make it shorter where i can barely click it in and then push my seat forward. You'll be held in place nicely.

[ARLOdwebb]

Another thing you could do is lock your seatbelt in place. I put my seat back a few inches, lock the seatbelt, twist the bottom around a few times to make it shorter where i can barely click it in and then push my seat forward. You'll be held in place nicely.

Yeah, that's how I was planning to do it...

Then I realized that verts seatbelts go into the back of the seat, not into the "B pillar", so moving the seat doesn't tighten the belt.