Supercharging
Le Mans Master
Joined: Dec 2017
Posts: 5,632
Likes: 3,333
From: Virginia
2021 C5 of the Year Finalist - Modified
St. Jude Donor '21-'22
yeah, I agree that you should be in the ballpark. My next performance mod will be LT headers. That should get to around 550 at the wheels. For me personally, that will put me right in the Goldilocks zone. Good luck with your build.
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Racer
Joined: Feb 2021
Posts: 284
Likes: 118
From: Southern Indiana
thanks and I do have lt,x pipe no cats and corsa extreme
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Racer
Joined: Feb 2021
Posts: 284
Likes: 118
From: Southern Indiana
Update
Just got off the phone with Andy and kit might be here next week 12 kits being built in front of me . Very excited I did upgrade to black kit,80lb injectors, and the ti head unit and the 50mm bov
Melting Slicks
Joined: Nov 2016
Posts: 2,310
Likes: 1,583
From: East Metro (Twin Cities) Minnesota
St. Jude Donor '21
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Racer
Joined: Feb 2021
Posts: 284
Likes: 118
From: Southern Indiana
so that I’d have room to grow in the future I plan on doing a forged stroker ,either going to run e85 or 93 he said I’ll probably be maxed out on fuel and have to do the upgrade on that too but we’ll see , the brand injector I’m not sure I justed asked if I’d get the flow chart for my dyno guy
Melting Slicks
Joined: Nov 2016
Posts: 2,310
Likes: 1,583
From: East Metro (Twin Cities) Minnesota
St. Jude Donor '21
so that I’d have room to grow in the future I plan on doing a forged stroker ,either going to run e85 or 93 he said I’ll probably be maxed out on fuel and have to do the upgrade on that too but we’ll see , the brand injector I’m not sure I justed asked if I’d get the flow chart for my dyno guy
Melting Slicks
Joined: Nov 2016
Posts: 2,310
Likes: 1,583
From: East Metro (Twin Cities) Minnesota
St. Jude Donor '21
Greg is NOT a fan of SD 80s.
I believe Fuel Injector Connection sells Bosch 80s that Greg has characterized for/with them. My SD'80s work fine - but it took my a lot of work to find data the made them work well - and they can be all over the place at short pulse widths.
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Racer
Joined: Feb 2021
Posts: 284
Likes: 118
From: Southern Indiana
Le Mans Master
Joined: Dec 2017
Posts: 5,632
Likes: 3,333
From: Virginia
2021 C5 of the Year Finalist - Modified
St. Jude Donor '21-'22
Congrats on ordering your kit. I know that you'll love it. It is possible to go too big on the injectors. However, it sounds like you have bigger plans coming after this, so it might not have been a bad idea. Good luck. I look forward to seeing your dyno numbers.
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Racer
Joined: Feb 2021
Posts: 284
Likes: 118
From: Southern Indiana
Thanks ,hopefully I’ll have the numbers posted in two or three weeks
Burning Brakes
Joined: Jul 2014
Posts: 979
Likes: 532
From: Charlotte NC
How much are you able to lower the rear with the 355's? That's a fairly tall tire, I had rubbing issues when I had 305/35/19's which is the same diameter at 27.4".
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Racer
Joined: Feb 2021
Posts: 284
Likes: 118
From: Southern Indiana
I’m rubbing right now after I put in my z06 leaf spring it was too low and I’ve not been motivated yet to raise to see where I need to be
Instructor
Joined: May 2022
Posts: 136
Likes: 66
From: Long Island, NY
dude.. you aint playin games... awesome. Brilliant move!! Superchargers rule.. my c5 has 98k.. at 94k previous owner (a good friend of mine) went to FI and shes running great. Ofcourse not many miles but engine purrs... pulls real hard.. dry as a bone. Docile just cruising but lay into her shes a total different animal. Good times. Best of luck you are going to love it
Thread Starter
Racer
Joined: Feb 2021
Posts: 284
Likes: 118
From: Southern Indiana
dude.. you aint playin games... awesome. Brilliant move!! Superchargers rule.. my c5 has 98k.. at 94k previous owner (a good friend of mine) went to FI and shes running great. Ofcourse not many miles but engine purrs... pulls real hard.. dry as a bone. Docile just cruising but lay into her shes a total different animal. Good times. Best of luck you are going to love it
Pro
Joined: Feb 2003
Posts: 745
Likes: 136
From: Detroit MI
I've done both. Although I have data for the SD80's, I just don't like them. When you look closely at how they behave at small pulses, it gets ugly. Worse, the ugliness is not consistent. The other ~80# Bosch injector options out there seem to do better than the SD units for small pulse consistency. If the injector isn't consistent, even the best data is just the "average of a mess".