Actually just checked my file and have the #300 rear spring in the car now. Would like to go softer, but with a big wing I would have a hard time looking over the hood at speed.Funny how back then the GTI was the drivers car. Nothing like a first love.

I have been tempted to try that out! Funny that you mentioned my first car! Loved that GTI

Big fan of Cortex, but for me, had to go down to #500/#350 springs to get some more grip. without a big wing, then #300 for the rear would be better. Needed the softer rear for better corner exit, probably the best performance point of the S197.

Wish I knew that before busting three engines..... Nothing like hindsight.Definition of insanity.... repeating the same mistakes and expecting a different result.

100% in agreement. Leave the engine building to someone who is an expert. Not a simple engine. It revs to 8000 rpm and can get 600 crank hp with NA.

Very true! they measure us some 3m from the exhaust! Have gone to the booth with the rear muffler stuffed full of steel wool. Until I saw a rx7 with the same cheat catch fire....

Would be a good idea to add a crank scrapper to the list. Looks like its $550 from aedhp.com...

Oh boy!! you can get to 99 db!! Your lucky! Down here, for our biggest track, we have to go to a sound booth and measure no more then 90Db at 6000 rpm. Its all a art form to get your Db's down and not loose power. But it can be done.Actually since Laguna has a 90db limit as well, You can see...

Am a big fan of the OP mustang spacers. Most of my track buddies down here have them without any problems.https://www.opmustang.com/store/p364/OPRacing_4th_Generation_Hub_And_Wheel_Centric_Slip_On_Wheel_Spacer_-_SET_OF_2_SPACERS.html#/

double post.

No negatives at all to proper hubcentric spacers. Most of us here do. Had a doubt so I just went out to check, my spacer is a 15mm from OP Mustang, not a 25mm. the 25mm is for those without the Cortex offset struts. I put the 15mm in for the extra space mentioned above.Sorry about that!

These coyotes are not that easy to rebuild well. Did a few simple engines before with success many years ago, but I would not want to do a Coyote myself. Have to look up the parts you need but am sure some one will chyme in before I dig them up, its straight forward enough though. My gen3 was a...

To be as accurate as possible, with 25mm extra ment you have no danger of touching with -4.5 camber. I found that -4.5 camber was to expensive on tire wear so I settled for -3.5. No problem at the rear, no spacer required with the upside down cortex setup.

Dam, sorry to see that... Now you have to look at your options. Minimum rebuild or a gen 3 block. In the end, the price comes out pretty close but sooner or later we all get to the same place you are at now.Done minimum rebuilds... I think those are for when you want to sell the car. Done...

I have the Apex 18x11 EC-7 wheels with the Cortex offset struts and use them with 25mm spacers as well with 315/30-18's. Just so I could play with up to -4.5 camber.