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 Old 10-23-2015, 06:32 PM   #1
 
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Default Another Enkei RPF1 thread

Lowered on ISC N1 coilovers. ENKEI RPF1 17x9 35 offset . Bridgestone Potenza RE-71R 235-45-17. Fender rolled the rears. No spacers. No rubs as of yet. I'll drive the car for a few weeks and report back.
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 Old 10-24-2015, 01:16 PM   #2
 
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How do u like the coilovers?

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 Old 10-24-2015, 06:32 PM   #3
 
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I've had them on for about 2 days now-- there is a noticeable clunking sound coming from the rears. Not sure if it is an install error or what but I'm currently trying to get ahold of ISC about the problem. I had it installed at one of their approved vendors shop. The shop that did it says it could be the spring coming into contact with the spring perch (metal to metal) supposedly. They triple checked the coil preload and tightened the top nut to ISC specs to no avail.


On a positive note: Handling has improved massively. Cornering is flat and I feel much more confident making small adjustments mid cornering. I didn't realize how much of a boat stock suspension was till I got these bad boys.

They're quite comfortable daily driving. Especially when paired with my new tires being slightly taller. I use 12 front 10 rear for daily spirited driving. They don't bounce around very much at all. I tried to ride around on some silly soft settings (1 front and 1 rear) and it still felt much better than stock suspension.


Would I recommend it at this moment? Not until I can find out what is causing the clunking noise. If that doesn't concern you then by all means go for it.
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 Old 10-25-2015, 07:37 AM   #4
 
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I had these on my speed this past summer, and expirenced a clunking in the rear as well. I found that the shocks weren't adjusted properly. I ended up having to shorten them. After I did that the noise was gone, and the ride quality improved. There is a way you're supposed to preload the rear shocks which I half followed.
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 Old 10-29-2015, 10:55 PM   #5
 
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Had the clunking issue handled. The shock was shortened a bit thanks to 08mzr's post.


Overall, I am pleased with the entire setup. Still playing with the stiffness setting but need a smooth surface to completely be dialed in. Now on to brakes and then I'm taking this car to Laguna Seca.

Any additional pro tips from you weekend warriors would be noted and appreciated.
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 Old 01-03-2016, 11:17 PM   #6
 
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Just an update:

I don't know if this is normal or not but the fronts are 32 way adjustable but the rears are 9 way. I called ISC and they said it should be 32 way both front and rear.

If anyone has any suggestions on how to set up these coilovers for daily driving feel free to enlighten me!




Center caps were provided by Home Depot.
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 Old 01-03-2016, 11:21 PM   #7
 
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Lmaoo. Your stance looks good
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 Old 04-01-2016, 03:12 PM   #8
 
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Impression about those tires please ?
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 Old 05-03-2016, 02:25 PM   #9
 
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*Shameless bump*

Any rubbing issues in the front after driving on these for a while? I'd rather go +35 than +45 with spacers.
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 Old 05-04-2016, 01:18 AM   #10
 
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Front doesn't rub what so ever. Rears rub under heavy cornering in a turn or fat people in my car. If I could do it again I'd go 35 front and 45 rear with the possibility of a tiny spacer depending on how square the tire is. You can overcome the rubbing with a fender pull if you're running 35.

I didn't go 45 because I was told I'd have to extend the studs. Not sure how valid that is.
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 Old 05-05-2016, 08:21 PM   #11
 
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Originally Posted by therapist510 View Post
I didn't go 45 because I was told I'd have to extend the studs. Not sure how valid that is.
Pure BS. Offset has nothing to do with stud length. Add spacers then you may need longer studs.

One other tip before you hit the track is remove the center caps if they're plastic. Hard breaking will heat them up and melt/deform them.
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 Old 05-05-2016, 11:05 PM   #12
 
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Originally Posted by shamie View Post
Pure BS. Offset has nothing to do with stud length. Add spacers then you may need longer studs.

One other tip before you hit the track is remove the center caps if they're plastic. Hard breaking will heat them up and melt/deform them.



There we go! I would've had to run a 3mm spacer thus needing to extend the studs a bit. My center caps are $1.79 home depot knock-out seals. I wouldn't be too broken up if they came off. I would still take them off as a courtesy though.
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 Old 05-06-2016, 06:17 AM   #13
 
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3mm is debatable needing longer studs. Usually they say 5mm is okay with stock stud length. Personally I'm against spacers, but that's just me.
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 Old 05-06-2016, 06:32 AM   #14
 
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Originally Posted by shamie View Post
3mm is debatable needing longer studs. Usually they say 5mm is okay with stock stud length. Personally I'm against spacers, but that's just me.
5mm give you ~3-3.5 turns of the lug nut. That's not debatable IMO, that's a need for longer studs.

With +45 RPF1s spacers are almost a requirement, there's only about 1mm of clearance between the back of the spokes and the caliper.
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 Old 06-09-2016, 07:04 PM   #15
 
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Picked up a set of 45 offset for the rears. Installing my SPC rear camber arms this weekend to try and zero out the camber.


Have a spare set of 35 sitting in the garage now. Got tired of the rubs.
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