This Working Man's C7 Corvette Grand Sport Gains 200 RWHP

The blue-collar racecar for the people is here. When it came to building his 2018 C7 Corvette Grand Sport, Jimmy turned to the professionals at Florida High Performance, and boy I think we delivered.
This badass Grand Sport picked up a ton of power with minimal modifications, in fact, it picked up 200 RWHP taking it to a whopping 604 RWHP & 574 Ft-Lbs at 6psi on 93 Octane.
To learn more about C7 performance packages visit us at flhighperformance.com/
So buckle up and get ready to hear this beast!
00:00 Start
01:00 Client Expectations For The Build
02:00 A&A Corvette Supercharger Kit
02:45 Dewitts Fan & Radiator Upgrade
03:02 Aggressive Gwatney Performance Cam Upgrade
03:28 😈 CHOP CHOP CHOP CHOP CHOP CHOP CHOP 😈
03:59 FLHP Custom Billet LT Valve Covers (with or without coil provisions)
04:24 Late Model Engines CNC'd Cylinder Heads
05:00 American Racing C7 Long Tube Headers, COllector, and X-Pipe
05:23 C7 Lowering Bolts
05:52 Vossen HF5 Gloss Black Wheels (19x10 F | 20x12 R)
06:12 Baseline WHP and TQ Numbers
06:35 Dyno Numbers after modifications (HP Tuners X @MSTuningTX)
07:29 Recap
To follow this build and more:
Instagram: / floridahighperformance
Visit us at:
www.flhighperformance.com/
#corvettegrandsport #c7corvette #chevroletcorvette

[@alexmendrin770]

Really love your videos!! These get me really excited!!!! Thank you can’t wait for more!!!

[@floridahighperformance]

Thanks! A lot more coming

[@xbwang87]

Wow! Just wow! I would love it more if this is a manual but I understand everyone has their own choice. Good work!

[@floridahighperformance]

Yeah man I’m a manual guy myself

[@C7performance]

Excellent Job again Erik. Love these modified corvettes. Awesome video!

[@floridahighperformance]

Thanks brother- you’ve got he Mack daddy of them all. Come see me soon I’m ready for round 2…

[@JohnnyBorrelli]

Man I love your philosophy behind why you build the way you do. I’m in Dallas TX. 2014 z51 manual c7. What would this cost? Partner with anybody in Dallas that would build this way? Not opposed to taking the drive out either but it is 1200 miles

[@floridahighperformance]

Thank you. After 2 decades in the performance business, I really can say that I prefer a smaller shop. It allows me to really dial in the process and provide better quality and service to the client. That’s why I can offer. I cannot speak for other “larger” shops out there who may not have that kind of operation. We’ve had clients send us vehicles from all over the country because of our business model and the way we do things. I’d be honored to help with your project. Email me for more info. Happy 4th! - Erik [e-mail]

[@IanMart]

Awesome stuff dude!

[@floridahighperformance]

Thanks Ian!

[@johng539]

Great job!

[@floridahighperformance]

Thanks!

[@romanlugovoy5994]

Sick looking Corvette

[@floridahighperformance]

Thanks a lot

[@gbass7328]

Great work in a big sea of corvette mod shops!

[@floridahighperformance]

Thank you. Agreed....that is why I stay small, stay humble, and stay in my lane.

[@kantisdel1]

Gorgeous Vette. 👏👏👏

[@floridahighperformance]

Thanks a lot, I appreciate that.

[@iroc8653]

Wow great job and that chop is chopping

[@floridahighperformance]

Thanks..... Sure is!

[@827spence]

Nice Job

[@floridahighperformance]

Thanks a lot

[@mikecorlett1305]

Beautiful C7 GS! The after market wheels are fantastic. With the after market lowering bolts, the car has a very aggressive stance. How does the front splitter survive with the front end so low?

[@floridahighperformance]

Thanks! She does just fine- no issues…just have to be careful!

[@BENNOEL5]

Loved the bloopers classic..

[@floridahighperformance]

My fav part of the video...that's 10% of the actual bloopers I commit LOL!

[@klaurent02]

cant wait to get this done on mine. already got headers and e85. expecting a +250hp gain with the upgraded fuel

[@floridahighperformance]

Best of luck!

[@betonblack3621]

You are gonna need more than that for 250. Cam And ported polished heads E85. Maybe. If you wanna stay all engine

[@d2123]

This video is awesome. It’s not like so many others that just waste time.

[@floridahighperformance]

Thank you David. Glad you enjoyed it. Take a look at our other videos...you may like those too.

[@VerisimilitudeDude]

Your videos are better than Redline Motorsports in Pompano Beach, FL. Why, you ask? Well, because you're more personal and friendly. Their videos are devoid of people and are kind of just cold to be honest.

[@floridahighperformance]

Glad you’re enjoying the content- we have a lot more coming!

[@JMGENTERPRISES]

Nice!

[@floridahighperformance]

Thanks!

[@officeuser1480]

Very nice.

[@floridahighperformance]

Thank you

[@nikolasvenetidis9608]

Beautiful car, but 600 whp seems low to me, I’m not used to the LT1 engines, but a Gen 3 coyote can make way more power with fully stock internals.

[@floridahighperformance]

Hey thanks for checking out the video. Boost is really low on this at up- the bottom end could use 3-4 more PSI but then we have to add fueling upgrades…the idea here was mild cam, low boost, moderate timing and no fuel system upgrades- and that’s what we built. 700 or so is about what I will push on a sbe LT1 at 11.5- CR.

[@ghostrider513]

Great video this is the kinda build I want to do could you give me some specs on the cam

[@spankaveli]

How much power would you expect or have you seen with just the A&A kit and no other mods except maybe intake and an X pipe etc?

[@floridahighperformance]

~120 rwhp gain on 6 psi and 93 on moderate timing

[@pukaman1]

How do you not have more subscribers? Great video

[@floridahighperformance]

If you build it they will come...takes time!

[@realrimreaper69]

“Working man” 🙌

[@floridahighperformance]

Damn right

[@robherrera6178]

I have a 2014 C7 Stingray A6 A&A kit Ti head unit 3.6 pully. 1 7/8 long tubes catless x pipe stock NPP. Stock heads cam n bottom end. MSD intake manifold Katech 103 mm TB C7ZO6 fuel pump & injectors plus DSX low side pump DSX flex fuel setup plus Alky control water methanol injection running 50/50 blend made 622 whp n 570trq on a very hot day here in Farmington NM. That was a E50 blend of flex fuel and 91 pump. Made just under 600whp on pump 91. 9.5 lbs of boost.

[@floridahighperformance]

Imagine what it would do with a cam

[@logantrisilla6579]

@@floridahighperformancedon’t cams statistically make cars last less mileage or mo

[@floridahighperformance]

@@logantrisilla6579 camshafts themselves don’t necessarily affect longevity. It has a lot to do with overall maintenance and other valvetrain components. More aggressive camshafts do put more wear and tear on things like valve springs and valves, which is why those items are always upgraded to handle increase lift, duration and more aggressive ramp rates.

[@ztwntyn8]

Jimmy likes this car. Jimmy is satisfied. Sinfeld~

[@floridahighperformance]

Best comment yet haha

[@BlackRoseVette]

I just picked up a 2018 Grand Sport 12/26/23! I want that set up, sounds perfect. Isn’t that car supposed to make 460hp stock though?

[@floridahighperformance]

Congrats! Yes, 460 is at the crankshaft. We rate power at the wheels, which will always be less.

[@gz4405]

When adding these power upgrades do you have to delete the front radiators

[@floridahighperformance]

We upgraded the engine coolant radiator to a larger Dewitt’s- as well as a larger fan from Dewitt’s specific to the C7. It did require some modification to the A&A charge pipe that routes up through the passenger side of the engine bay to the throttle Body…mostly trimming. I decided to delete the cooler that was at the front of the car for the trans, as the vehicle has an aux trans cooler near the rear bumper as well. If I wanted to, I could have kept the cooler and made my own bracket to move it up to gain clearance for the IC, but since this isn’t a strict race car and considering the use, there’s not one single detriment when removing the cooler. The car has been running fine with out a single issue with trans temps….

[@denerrthomas8647]

Are you using stock oil pump or the katech oil pump ?

[@floridahighperformance]

This engine has a Katech pump.

[@bboyjonguadalupe]

What are the offsets for the wheels on the car I have a z51 and want a good of a fitment as what you guys have done just not too sure what to order

[@floridahighperformance]

Thanks for checking the video out. Keep in mind the z51 doesn’t have the wider body like the Z06 and the GS do, so you’re limited on offset. However- get with the right wheel company and usually you can have a nice 3-pc wheel made with aggressive offsets- even on the standard C7 body. Call my friends at Strasse Forged- they made a set of SM5’s a long time ago for my turbo C7. They were concave as hell and beautiful and fitment was spot on!

[@geraldmitchell3602]

Hey, I'll be getting a 2020 Camaro ZL1 1LE very soon. With the same idea you did with this Corvette what would you recommend for the Camaro? Pump gas is 93 unless I'm travelling I could be stuck with 91. I live Canada.

[@floridahighperformance]

Email me [e-mail] Erik

[@charleslauria1509]

Thinking about adding a super charger to my C7 what’s the turn around time and cost approximately. I live near your shop and thinking about upgrading my Grand Sport.

[@floridahighperformance]

Hi Charles, thanks for being patient. Please email me your info to [e-mail]

[@DennisMurphey]

Very informative, I am in Virginia can you supply parts and support to my local shop? I am retired and budget limiting. Can I cut back on some the parts or work? 2014 C7 Z51 A6 10,000 miles about time to get that A&A kit and a few support parts. Cam Sounds perfect! Head work??? I like headers but saw a 3 inch down pipe to 3 inch mid pipe I thought might work ok enough. Very well done project and video. The perfect setup for my 2014. Dennis in Virginia

[@floridahighperformance]

Thank you Sir. Email me [e-mail] Erik

[@anthonyarcher5435]

I have that same Corvette Grand Sport and would love that upgrade. I live in Houston TX. How do I get that and what does it cost?

[@floridahighperformance]

Email me [e-mail] Erik

[@murlhennigan3456]

I have got a 2015 Z51 stingray. The car in this video would be exactly what I would aspire to have in my car. What would that set me back if you guys do it?

[@floridahighperformance]

Thank you. Would be happy to talk to you more About options and pricing. Email me. [e-mail] Erik

[@85net]

This is a very good video! I can never understand why some LT1 can make that kind of power on the stock fuel system. I had to get LT4 injectors, LT4 HPFP and a DSX auxiliary fuel pump. All that for similar power gains, did you delete DOD and VVT during this build ?

[@floridahighperformance]

Thank you very much. We didn’t go overkill on the boost- only 6lbs. Everyone wants that high boost PSI - which means higher fuel demand. It’s a balance. The cam helps too which has a larger fuel lobe on it- which drives the HPFP harder and creates more volume. Yes VVT is deleted as well as AFM. We solely use LME billet timing covers on ALL LT cam swaps- no exception.

[@85net]

@@floridahighperformance from your experience does the 38% fuel lobe shorten the life of the HPFP?

[@floridahighperformance]

@@85net not if preload is properly set up. Number one killer of HPFPs is improper install height…

[@85net]

@@floridahighperformance awesome, thanks for the knowledge.

[@robherrera6178]

I had to upgrade my fuel system as well. I think this particular car made such good gains because heads n cam. More efficient

[@williambrothers9636]

it would be nice to know how much a build like that costs

[@floridahighperformance]

Around 20k or so…parts labor tuning

[@Highlander1432]

@@floridahighperformance That's very good compared to most shops Doesn't the 18 C7 come with the LT4 low side pump from the factory ?

[@Angelthe6ixx]

20k for 200 hp? 😭😂 oh nooooo. While b58’s are getting 100-150+ hp on dps and tune.. going for like 2.5K max

[@TheSilasjohnson]

Will these upgrades work on the 7-speed manual grand sport?

[@floridahighperformance]

Yes it will

[@user-xu7yj6to3u]

Hey I would love to get the custom valve covers from yall.

[@floridahighperformance]

Sure what are you looking for

[@DJRockWilson]

I have a 2015 non-Z51 lLT M7 Stingray with ARH long tubes, Akrapovic exhaust, AFE intake and tuned. It Dyno’d at 437 RWHP and 453 RWTQ. I wouldn’t mind adding a supercharger but I want to be able to keep the AFE intake just because I love the way it looks. Does anyone make a kit that would allow that?

[@floridahighperformance]

I have made it work with custom fab....

[@jamesgoldade1824]

Was wondering if you could help me with my c7 want to do some work on it

[@floridahighperformance]

Sure thing [e-mail] Erik

[@abbas674]

Does the grand sport c7 have a wider body than the base model c7

[@floridahighperformance]

Sure does. Same wide body as the c7 Z06

[@mnoell35]

Maybe one day I can get my ‘19 Z06 down there. Only looking for a 750 package.

[@Highlander1432]

Change that silly pint sized supercharger first then upgrade fueling

[@floridahighperformance]

Hey there Noell, please email me at [e-mail] for more on this project!

[@madriver50]

I have a 2017 grandsport thats in the shop with a collapsed lifter and I am having the lifters, pushrods and cam changed out to a texas speed stage 1 setup. about how much would it cost me to do the same thing in the video , I daily drive the car

[@floridahighperformance]

Shoot me an email please [e-mail]

[@familyschoice]

Cost on the engine work? How much power can u add without deleting warrant

[@floridahighperformance]

This package is right at 20k. Warranty usually is voided in some way shape or fashion when adding performance mods...

[@frankwilliams8879]

Hey I live in Florida and I have a 2014 C7 Stingray A6 and I’m looking to get a similar if not the same set up and I was wondering if I could talk to you about quotes and pricing for my build

[@floridahighperformance]

Absolutely shoot me an email please [e-mail] -Erik

[@DennisMurphey]

Frank I am in Virginia with 2014 Z51 A6 let me know how this proceeds. Dennis

[@PhillyDee215]

200RWHP IS A VERY NICE GAIN😎‼️

[@floridahighperformance]

Thank you! With fuel upgrades we could add 2-3 more PSI of boost and E85 and probably pick up another 100 or so…

[@PhillyDee215]

@@floridahighperformance I SHOULD'VE RAN E85🤬YOUR IN FLORIDA RIGHT🤔

[@floridahighperformance]

@@PhillyDee215 yes

[@PhillyDee215]

@@floridahighperformance damn🤦‍♂️im in Philly/Jersey

[@dwightgoodman2116]

Cost and general HP increase with only the supercharger add-on?

[@floridahighperformance]

120 rwhp without any other mods, 10k installed and tuned.

[@rodneychimney6126]

Have a 2006 Corvette what the price on a package like the one on the C7 I’m looking to build on my C6

[@floridahighperformance]

This exact package without the wheels, around 20k or so...please email me for formal estimates... [e-mail] - Erik

[@jeffhass5753]

Curious as to cost for these mods, got a 19 GS

[@floridahighperformance]

15k or so

[@kenlutter2065]

Did you change the ring gap?

[@floridahighperformance]

SBE

[@johng539]

I have a 2015 c7 z51, I don’t want a blower, as my car to is a daily , and the only car I have at this time to use, unfortunately, I want power to , I wanna stay up with the new c8’s, how can I get that same power match , if not more on my c7 z51, auto, I done the the lowering bolts, and General Motors mag ride up grade as far as mods, ( nothing serious ) but just a preference for me, help me get power , what can I do to it to achieve me getting into the 11’s in the 1/4 mile. All stock, I also have the NLP exhaust sys , thank u in advance , Ps Budget is around 2500 or so

[@floridahighperformance]

Hey how are you. $2500 is a tight budget- 5k would be better. Bolt ons and tuning would be the next step for you…

[@horsecockexpress7612]

Jimmy drives to work with the tow hook installed in the front bumper

[@horsecockexpress7612]

sick build tho

[@ztwntyn8]

The working man and corvette do t go together lmao I’ll watch anyway though.. gotta keep up on things. 👍🏻👊🏻

[@floridahighperformance]

Sure they do!

[@linleyvanacore3036]

2016 c7 z51 3lt 7speed manual can you help me ??

[@floridahighperformance]

Absolutely...email me. [e-mail] - Erik

[@justinlord930]

How much would the engine modifications run for on a '17 base stingray?

[@floridahighperformance]

Around 9500 for a head cam package which includes all parts and labor/tuning. Supercharger not included

[@justinlord930]

@@floridahighperformance what are your average gains for that package?

[@floridahighperformance]

@@justinlord930 are you talking about the full Package we did on Jimmys car- or just like head cam bolt on deal?

[@justinlord930]

@@floridahighperformance for the heads and cam package

[@floridahighperformance]

@@justinlord930 Typically 80-100 rwhp, depending on supporting mods and fuel type

[@zr1chris1]

What was the cost of that build? I have a 19GS

[@floridahighperformance]

About 20k all in with the wheels...

[@josephfamularo469]

Would the manual have even better numbers?

[@floridahighperformance]

Yes absolutely about 10-15% higher over the auto

[@leonardbutler7366]

I've got a 2015 Stingray I'd like a similar build. It's my daily. What's the average cost. I'm here in Houston and oddly enough I'm a Florida Boy.... Tap in, thanks

[@floridahighperformance]

Hey shoot me an email at [e-mail] and I would be happy to send a quote. - Erik

[@SimsCustomGuitars]

Do you know what the offsets were on those wheels front & back?

[@floridahighperformance]

off the Vossen box....front 28 rear 40

[@SimsCustomGuitars]

Thanks!

[@floridahighperformance]

@@SimsCustomGuitars You are welcome!

[@SimsCustomGuitars]

+40 on the rear is the most aggressive I’ve seen with the HF5 on a grand sport, most of the ones I’ve seen have been +45

[@Casino_flo]

Do you send custome tunes for my hand held

[@floridahighperformance]

We do not at this time, sorry

[@BecomingOffgrid]

What was the total cost for a build like this?

[@floridahighperformance]

bout 20 k

[@MadDroneItl]

Fiiiiire

[@floridahighperformance]

Thank you!

[@keemerbecks3941]

What is the top speed after the mods

[@floridahighperformance]

Not sure to be honest

[@michaelroberson851]

How much does this build cost out the door?

[@seanpineda6550]

what stage is that cam? also is it on stock piston?

[@floridahighperformance]

Stage 2 NA from GPI. The NA camshafts work fine with centrifugal style superchargers like the A&A kit shown in this video. If it was a top mount supercharger like a Whipple or Magnuson, we would have went with a positive displacement friendly camshaft.

[@floridahighperformance]

Yes stock bottom end

[@kolbyhumbert2680]

@@floridahighperformance what hp or psi are you comfortable with on the stock LT1 piston?

[@floridahighperformance]

@@kolbyhumbert2680 8 psi, 650 RWHP….after that…rolling the dice

[@kolbyhumbert2680]

@@floridahighperformance word thanks!

[@ondreajones27]

How much for this build

[@floridahighperformance]

Around 20k

[@Bluelizardconstructionservices]

Hi it’s Frankie amador I’m interested in this same build ! what would this same build cost me ? 😀

[@floridahighperformance]

This exact package without the wheels, around 20k or so...please email me for formal estimates... [e-mail] - Erik

[@charlesbutcher7843]

How much for total build???

[@floridahighperformance]

This exact package without the wheels, around 20k or so...please email me for formal estimates... [e-mail] - Erik

[@matthewsanders1165]

What’s the cost on the upgrades that got the 200 gain? 🤔

[@humanhighlight06]

I'm currently trying to build a car like this. This is the question we all really want to know.

[@floridahighperformance]

20k or so

[@LEVEL8RIDERR]

How much did that cost ?

[@floridahighperformance]

This package is roughly 15-17k out the door…parts labor tuning

[@sportsman192]

How much does a build like this cost?

[@floridahighperformance]

Not including wheels…about 20k or so

[@memphizballa1]

How much did this build cost?

[@floridahighperformance]

About 20k with the wheels, all in

[@Casino_flo]

How much for a 550wheel hp package on this car?

[@floridahighperformance]

About 10-12k

[@gz4405]

What would the turn around time be for say a 550 wheel hp package…. What would be done to it?

[@floridahighperformance]

@@gz4405 we don’t provide guarantees on completion times on performance builds- too many variables which are out of our control- like other vehicles causing delays, parts issues, etc. no reason for I to take more than a few weeks start to finish though- if you’re looking for a ball park. We don’t rush- we take our time with these builds and pay great attention to detail along the way- which takes time. If you’d like a formal quote send me an email and I’d be happy to put one together for you. [e-mail]

[@xXBoricuakingzXx]

How much this setup cost?

[@floridahighperformance]

Under 20k

[@jonathancholak7082]

How much did all this cost

[@floridahighperformance]

A set up like this ranges 15-20k….including the wheels

[@jetvang2851]

How much it cost

[@floridahighperformance]

This exact package without the wheels, around 20k or so...please email me for formal estimates... [e-mail] - Erik

[@moderngrub1876]

Price of a build? And please don’t send me to your website for a quite just tell me here

[@floridahighperformance]

With the wheels, 20k

[@moderngrub1876]

@@floridahighperformance that’s worth it to be honest when I get my vette I’ll keep you all in mind

[@floridahighperformance]

@@moderngrub1876 it’s a lot of parts and a lot of work- but the gains justify the cost in my opinion and we are barely working that car. It’s got another 100 rwhp in it easy if we add some fueling upgrades.

[@jasonconley771]

SO HE WENT IN PLANNING ON SPENDING 6-7K ENDED UP SPENDING 30K

[@floridahighperformance]

No, he came in expecting to pay about 20k all in, and paid 20k all in. 30k? I wish. Thanks for checking out the video.

[@lousfara610]

Just buy a Z06 and save a few thousand?

[@floridahighperformance]

You're not wrong...some people don't want a Z06

[@Sick_ridz]

What did that run you 20k? Why not just buy the z06? lmao. The LT4 is a better motor

[@floridahighperformance]

Um, well, I don’t know. Let me goes ask Jimmy LOL! I get your point - believe me- I agree…but my dude had a GS and didn’t want a Z06…different strokes for different folks. Go watch my BAD PUNKN ZL1 video- I’m an LT4 guy all the way!

[@thundrune1554]

Depends on what your goal is. The way this kind of centy set up and the roots system on an lt4 make torque is radically different on the curve. IMHO nobody needs 650ft/lbs at the hit in a 3,500lb car with DOT approved street tires etc - chassis can barely handle it - some would say straight up can’t handle it like Pobst - which is why the 06 and R1 are notoriously twitchy. Plus hes getting all the upgraded cooling and etc in that number if I understand it correctly. Not to answer for the shop but on a road course there would likely be a lot of unhappy z06 guys wondering why they spent the money on that and not on this… just sayin. There is a whole lot more to being fast than simple peak hp/tq and 0-60.

[@thundrune1554]

Also - as to the lt4 being a better motor outside of the cam drive, which I’m sure is a roller now on the cam upgrade, the vast majority of the improvements between the lt1 and the lt4 are in the heads. Given that this car is now running CNC’d heads and that the AFM has been deleted (thank god) - and I’ll assume given the quality that this shop seems to have that they did all the other bits as well (springs, arms, push rods etc)- these heads are SIGNIFICANTLY better (meaning bullet proof and breathing like crazy) than stock 06 heads. So an extra 15k-20k more for a stock zo6 over a stock GS or 20k for this vs a stock z06 (all the same final number being the point) - this GS is better in almost every way.

[@jeromeadams5692]

Nice car, but auto 😢

[@floridahighperformance]

I am a manual guy myself...but as time goes on, they are harder and harder to find!

[@mteresisr]

What will this build cost, less the wheels.

[@t-jh4236]

Less is more fellas. Feel free to NOT stick a Vette emblem anywhere you have enough space for it. Looks tacky. Looks like a Mustang owner also owns this car. You know the type. Dudes that stick chrome on their door handles, window trim, etc. Ghetto ass rats. So, please be classy. Otherwise beautiful car.

[@floridahighperformance]

To each their own...thanks for checking out the vid!!

[@Johnnyboy200406]

So buys a 50k GS spends 25k to make it a base model c7z06 ??? Buy a c7z06 , tune headers e85 and you have the same hp

[@floridahighperformance]

Maybe he didn't want a Z06? Gotta ask Jimmy my boy.