Base GT350 Struts installed on GT

[WILE_5OH]

Interested to see how the car handles after the base GT350 shocks and struts are in. My 2016 GTPP doesn't have the "bounce" a lot of folks complained about, but I do miss the koni yellows I had on my 2013 GT...

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[BmacIL]

Interested to see how the car handles after the base GT350 shocks and struts are in. My 2016 GTPP doesn't have the "bounce" a lot of folks complained about, but I do miss the koni yellows I had on my 2013 GT...

Not surprised. They changed the tuning to address this for '16.

 

[Niz55]

Did you do shock testing or is this anecdotal from your experience?


FYI - 2015 PP rear shocks have more compression and less rebound compared with 2016 PP rear shocks, though they increased the rebound for '16 more than they decreased compression. This is via a Ford Vehicle Dynamics engineer and friend of mine. He doesn't have a lot of knowledge of the FRPP stuff and only a little involved on the Shelby, but knows all the details of the V6/EB/GT hardware.

Only from my experience. I have ran the pp 2016 setup with my sportlines and the rebound was not enough. Dont have any experience with stock pp spring but I did test out the 2015 pp shocks with frpp and the compression is defiantly less with more rebound.

 

[Niz55]

I am sure they changed something but with a aggressive springs like the sportlines , even the stock 2016 pp shocks need better rebound.

 

[Niz55]

Just out of curiosity, if the struts have longer shafts like the gt350 would it increase the rebound?

 

[BMR Tech]

Just out of curiosity, if the struts have longer shafts like the gt350 would it increase the rebound?

Measure your travel range and compare it to the others you have.

I assume that the longer shaft will give you more extension travel...but I don't know any of the other details of the shock housing and internals etc.

 

[BmacIL]

I am sure they changed something but with a aggressive springs like the sportlines , even the stock 2016 pp shocks need better rebound.

No doubt about that. They're improved over the 2015 tuning, but still need more rebound on smoother surfaces/undulations and to control weight transfer to the front better. From what he told me, they couldn't go much higher without significantly degrading ride quality over harsher bumps. As you go up in damping, eventually the damper won't let the suspension return to the road surface quick enough and you'll get very harsh response.

 

[Niz55]

No go guys. Rear shock is totally different. Bottom Mounting point is longer on the Shelby. The shock it self is longer also but the shaft is same size. Compression and rebound seems to be the same as the pp shocks. For some reason the Shelby shocks were much much smoother when compressing them.

O well returned it and lost $100.

Maybe I just wait for bilstiens to come out in August. I know for sure they have much firmer shocks/struts. I know a member that was testing bilstiens shocks and struts 2 months ago and he said it will be available sometimes in August. He also had the sportlines.

 

[Niz55]

I'll,post some pictures later. Photobucket is down.

 

[16s550]

The Mrr 350 wheels are 40 offset for the front. I am running 275-35-19. I installed my front wheel WITHOUT the spacers and I had maybe 2mm or less clearance from the strut.

The factory front pp wheels are 45 offset with 255 tires and probably would rub against the strut. I do no t have any factory wheels so I am not 100% sure. From the looks of it, might not clear. Most people are running spacers anyways with factory pp wheels.

Interesting so I hear some.type of light rubbing at below 20mph only. I have koni struts with steeda sport linear. And MRR 350 wheels. Could they be rubbing? 275 tire aswell.

 

[Niz55]

GT350 Left and PP right

 

[Niz55]

Interesting so I hear some.type of light rubbing at below 20mph only. I have koni struts with steeda sport linear. And MRR 350 wheels. Could they be rubbing? 275 tire aswell.

This is only with Gt350 struts not koni. Best way to find out is to take off the wheel and check for tire marks on the strut housing.

 

[BmacIL]

Wow! That is a big difference. Oh well. The GT350 base springs with FRPP or Koni/Steeda adjustable might still work great.

 

[Todd15Fastback]

I am in the process of installing base gt350 shocks and struts on my 2016 gt with Sportline springs. they bolt up perfectly fine. The front struts on the base 350 is mono tube and has a longer shaft. Also, the base 350 struts do not have the big dent on the strut body like the gt models. So running 350 struts with factory gt wheels you might rub on the strut housing. I am running 12mm spacers and Mrr 350 wheels without any rubbing issue and plenty of space.

Will see how the shocks and struts perform with the sportlines once completely installed.
The front 350 struts are identical to ford racing struts. Compression and rebound are also 99% same as the FRPP struts but the FRPP struts are twin tube.

Also, bump stops that came with the gt350 struts are same as the FRPP bump stops. Same part number.

Trying things out before I spend 3k+ on coilovers.

The Steeda struts and shocks are nice but they will not work well with sportlines. The car felt very lazy under load compression and it was uncontrollable because of the softer compression. Sportlines are more aggressive and also progressive rate. If you have linear springs Steeda shocks and struts would work well. Sportlines rely on more compression from shocks and struts that Steeda does not offer unless you are running linear springs.







Steeda on the left, gt350 in the middle, PP on the right




Gt350 installed with sportlines on my gt

The part I bolded, I am confused. I don't understand how the Steeda struts/shocks can't work with a set of progressive springs? They have an absolute ton of adjustment points just like the Koni's do. I know you are speaking of compression but it still doesn't make sense in my mind.

It appears you are serious about tracking your car, too? Curious why you went a progressive spring setup vs. linear?

 

[Niz55]

When I spoke to David he said you really don't want to rely on your shocks for compression that is where the springs come in. With sportlines the drop Is very aggressive and shock compression plays a big roll. That's why koni and steeda will work with mild drops and linear springs. Plus steeda and koni only have adjustment for rebound not compression that's why you need to match the correct spring with them

If you search online for beilstien springs shocks combo, they always include the Sportlines.

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