gear ratio Reply #15 – October 24, 2011, 10:17:58 PM lets say your stock gears are 3.08's.. the purpose of switching to 3.73's or 4.10's is acceleration gain, not top speed gain.. can you gain more top speed? it's possible, but it depends on the cirspoogestances.. cirspoogestances a stock 3.8 doesn't have.. the 4.3 stroker kits are built for SC's, as are most other aftermarket parts.. so keep that in mind before spending any money on your motor Quote Selected
gear ratio Reply #16 – October 24, 2011, 10:21:07 PM Quote from: Jmoore87;370897Ive thought of using the motor from a cougar/tb supercharged but finding one is no easy task best place to find 1 is SCCOA.. super coupe club of america.. they have a classifieds section on their forum.. the BEST way to do it is with a megasquirt DIY ecu, if you know what you're doing. the SC harness is super complex and has a lot of other tied into it Quote Selected
gear ratio Reply #17 – October 25, 2011, 12:28:31 AM Stroking it will indeed cause U to gain top speed, but that is a total rebuild. A lot of money for not a hole lot of gain. If you have a supercharger laying around go for it. Just swapping for a supercharged engine or 5.0 will give U what U want. Could adding just a supercharger be an option? Quote Selected
gear ratio Reply #18 – October 25, 2011, 01:08:20 AM not recommended.. NA 3.8's have py pistons.. they'll start getting weak at 8psi, busted at 10.. an SC bottom end would basically be a must.. SC blocks are stronger too Quote Selected
gear ratio Reply #19 – October 25, 2011, 01:39:46 AM Good 2 know. Let's avoid that! Had 2 ask. Quote Selected
gear ratio Reply #20 – October 25, 2011, 02:33:18 AM did a bunch of research on the subject when i had my SC and wanted to build a 2nd motor :p lol Quote Selected
gear ratio Reply #21 – October 27, 2011, 03:27:51 PM Im not looking to go crazy on top speed. Maybe up to 120 mph. I just dont want to stay at 85 untill i can dind a different engine. If im not mistaken i have 3.08 gear ratio Quote Selected
gear ratio Reply #22 – October 27, 2011, 04:06:31 PM Understood. However, gear ratio is gear ratio. Look at it like a transmission. You can go faster in 2nd or 3rd gear than you would in first right? The rear gear changes you are asking about will most likely hurt top speed instead of help. Deeper gears are for acceleration, not top speed. Quote Selected
gear ratio Reply #23 – October 27, 2011, 04:51:55 PM i don't think a stock NA 3.8 is capable of hitting 120 lol Quote Selected
gear ratio Reply #24 – October 27, 2011, 08:32:20 PM Have you just been hitting the speedo limit? Have you done the j-2 mod?Where are you driving 120mph legally? Quote Selected
gear ratio Reply #25 – October 27, 2011, 09:15:10 PM Yes ive taken my car to its limits several times mainly on the highway. And it takes no time to get her to about 90mph. Whats the j-2 mod? And i dont have anywhere to speed legally. One reason i want more on the top end is because i was hauling ass down the highway one night with a vw beatle and the the thing pulled away from me at the top end and all i could do is watch it walk away lol. Hurt my pride lol. Theres a 98 gt engine i can get my hands on but it doesnt have the wire harness. Quote Selected
gear ratio Reply #26 – October 27, 2011, 10:09:12 PM I knew these speeds were not happening legally. A big majority of us on this site break the law by driving our cars with missing, altered, or disabled emission control devices. No judgement here. The j-2 mod is so digital speedos can read more than 85. Can anyone answer me why this car is so slow on the top end? I had a 93 Cougar with a 3.8 that would do 115. Rear gear on that car was factory, and I believe it was 3.08. It would hurt my pride to be competing with a Beetle at all! lol Quote Selected
gear ratio Reply #27 – October 27, 2011, 10:18:00 PM She is completly stock at the moment except for for the intake. And I was fine against that bug untill i got to 90. Yea it still hurts lol. This is why i want more on the top Quote Selected
gear ratio Reply #28 – October 27, 2011, 10:20:33 PM Well, the 93 cougar would have basically the same engine, basically the same rear gear, and weigh a lot more weight, so it should be slower. Quote Selected
gear ratio Reply #29 – October 27, 2011, 10:40:35 PM tisk tisk.. speeding.. you should be ashamed LOL and emissions controls? what the are they?! Quote Selected