[JasonSB]

I currently have intake and ported TB. Looking for next step to add some more HP. Was looking at a ported blower with a 2.3 upper and headers or doing a 15% lower and headers. Any suggestions? I dont want to go cam yet.

Im new to the ZL1, so not sure which options are the best.

[gotswap]

Bigger blower is the 1st upgrade I did, well worth it

[SJFGTO]

Long tubes, high flow cats or catless and tune. Adds usable HP, improves sound and freeing up the exhaust is the gateway to most all future mods. I went with the lower pulley as well. In 8,000 miles since, the ZE has never missed a beat, no overheating issues and screams when I hit the loud peddle.

[CharlieRomeo]

Originally Posted by gotswap

Bigger blower is the 1st upgrade I did, well worth it

I'm starting to lean towards this path myself. At first, I was planning to do just bolt-ons, then pulleys, then tune, more bolt-ons, port the stock blower, more tuning, and so on. I was going to wait till I maxed out the stock setup before I changed the blower. Now that I'm thinking about it, I believe its a more cost effective route to upgrade the blower right off the bat. You save thousands down the road by not spending money on a ported LT4 blower and snout, pulley changes for the LT4 blower, tuning and re-tuning for every change you make. Ultimately swapping to a bigger blower anyway. Granted, not everyone will choose to max out the stock setup but if you're looking to squeeze as much power as you can out of the stock blower, that's what you'll have to do.



If you went said route of changing the blower first, any bolt-ons and tunes/re-tunes will net you a higher horsepower gain versus same mods on the factory LT4 blower. Taking a 2650 with stock everything else, then adding long tubes and such to that setup, the gains will be (insert Trump impression) huuuuuuuuge!



I was planning to do full set of BC Forged rims and tires over the winter but maybe I'll do a 2650 instead. Decisions, decisions...

[Ron_Robinson1]

Depends on your end goals with the car. I think a stock blower is good to 750 rwhp, and that’s enough to go 9 seconds in a auto. We can talk blower gets hot etc, but I have hot lapped my car and it still has gone 9.7-9.8 in the 1/4.

[1993kramer]

Originally Posted by gotswap

Bigger blower is the 1st upgrade I did, well worth it

Was it easy to get tuned? I've thought about this route myself!

[gotswap]

Yep, find a good tuner and dyno in your area

[Harry76]

Long tube headers and lose the Cats.
Upgrade intercooler coolers.
lower pulley.
Good ported throttle body.

[gaveup]

Is the stock heat exchanger worth a damn? Or do you have to upgrade those when you upgrade the blower?

[EDFHOBBIES]

$1275.00 ported blower
$200 upper pulley
$550 lower ATI damper and ring

$2025.00 in parts

If you do an upper and lower you will want some type of cooling mods like an exchanger and a reservoir count on 1500 plus for parts and labor. Or you can add meth kit 1000.00 plus labor and have a life time of having to fill a reservoir and buying meth there would also be a tiny worry that something might go wrong spraying meth and mess something up.

So now your 3k to 4000 in parts... for the OEM blower to make some good reliable power.

or you could do this..

magnuson 2650 6100.00
sell your blower for 1500.00

4600.00 about the same price as over spinning the OEM blower with out the added heat and they would produce the same power level but plenty of room to grow. The install is easy other than cutting factory valve covers or buying 1000.00 pair from some companies.

You still need to fuel it latter on with meth or race gas since it doesn't have port injection or you could even use the katech kit for 9k to run full e85 to reach into the 1000s when you did a cam.

But wait there's 1 more option..

The eforce 2650 route:

2650 eforce priced all the time from 4800 to 5300
Kong porting 1275.00 (this will make the blower flow and have IATs that match or surpass the maggi 2650.

You can fuel it the same way with Meth or race gas.
You can use the 9k Katech setup for full e85
But the real benefit Later on maybe if you did a cam and wanted more power you can use the readily available fuel injection ports and another controller like AEM, Holley, or Haltech run e85 for a ton less 5k range for fueling.

down side trim the hood.. (not the carbon)


6k to 6500 for the blower and porting sale oem for 1500 be out 4500 to 5000k with room to grow.

oem blower route should make close to 700 on 93 with proper cooling meth and 93 or even a little E 750s probably

the maggie and edelbrock on 93 should be past 700 with no cooling mods on 93

A cam with one of these 2650 on 93 octane alone have netted some 800 plus dynos you won't see that on 93 with a OEM blower with out meth, race gas, some E, or cooling mods and that's about as far as you will get on the oem blower.

with the 2650s past the 850s its a good idea to start investing in cooling mods for both units. Exchangers, reservoirs, and meth. The difference is you will be close to 150 hp more than an oem blower when you need these mods.

FYI both 2650s will make 1200 to the wheels on all pump e85 and cooling mods! the oem unit route you will spend same amount maxing out at about 750 to 800 rwhp

Hold on to your Boots 1 more option!

procharger..

port capability but a pricey manifold will make lower IATS and can make more power on all fuels. Cons noisy operation and not factory looking.. pros killer blow off valve noise! cool looking exchanger in the front grill... higher top end (more MPH) good for roll racing lower TQ..

I'm sure some one can chime in on this and a twin turbo route! I have had both on previous car not a fan.

[JasonSB]

I decided to go with Intake, Ported TB, Headers and 15% lower to start out with. Next step would be magnuson 2650, Cam and fuel upgrades.

Whats annoying about the ZL1 is running E85 takes thousands in fuel system upgrades. On my C6 Z06 it was $700 worth of injectors and that was it.

[EDFHOBBIES]

Originally Posted by JasonSB

I decided to go with Intake, Ported TB, Headers and 15% lower to start out with. Next step would be magnuson 2650, Cam and fuel upgrades.

Whats annoying about the ZL1 is running E85 takes thousands in fuel system upgrades. On my C6 Z06 it was $700 worth of injectors and that was it.

That's a good call... other than the TB all the other stuff can be used over to make real power next time around.. The TB you could do with out to save a little its not gonna do much!

[ProjectZL1]

Originally Posted by EDFHOBBIES

That's a good call... other than the TB all the other stuff can be used over to make real power next time around.. The TB you could do with out to save a little its not gonna do much!

The ported TB Does make a difference. Will it add 30 to 40 HP I wouldn't go that far. But It was worth the money to me just to get rid or the "dead spot" in the throttle just off idle. Looking and comparing the Soler performance Ported stock and the stock TB it would be hard to say it makes no difference and gives no power at all. Drivability and smoothness of throttle response has increased for me as well. And if you want to pick up more you could get a ported LT5 TB and a tune. Besides, the Soler unit looks awesome and all their engineering is explained on their website.


https://youtu.be/DAwrvr23o-4

[ssmofo]

Do a ported TB and intake snout, then put either a larger crank pulley, or go to a smaller top pulley and make more boost,easy way to make more HP.