T/A KID

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More info to come shortly....


Current Mod List:

Custom AFE Intake
Texas Speed CNC stock ported heads milled to 12.1CR
Texas Speed 1 7/8 LT's/no cats

Ligenfelter 2.38" Upper pulley (Stock is 2.56)
ATI Wet Sump Damper/ATI 8.09"Lower puller (stock LT4 size)
Ported Supercharger Snout/TB

Edelbrock Supercharger Coolant tank
E85 Flex fuel sensor
LS9 Map sensor/IAT

LT4 HPFP/Injectors

RX catchcan

Tuned with HP Tuners




Wanted to share what I have been working on during my weekends for the last month... First this is an LT4 blower setup on an LT1, not an LT4 crate motor, thought I would make that clear. I think the LT4 engine is an amazing engine, but besides the forged pistons, I actually like the stingray motor. The cam for the stingray has about 11 degrees more of duration over the z06 and with exhaust upgrades I like the LT1 cam even more, plus lets not forget compression jump. A good friend of mine sold me this entire setup for 1/2 what a C7 centri kit and 1/3 what a 2.3 eaton blower setup goes for. Setup has 2300 miles, and my friend upgraded to a procharger kit on his 15 Z06. So with many Z06 owners upgrading there may be lots of LT4 blowers for sale at GREAT prices, so maybe this thread will help. Sooo I decided to sell a very popular centri C7 kit I had to install this instead, goal is 700rwhp on around E50, but I have seen 750-800rwhp from this little blower MAXED out which is very impressive, especially considering they are making over 650rwtq at 2500rpms, that's a blast on the street. Plan to do some R&D with the fuel system capability and IAT measurements before swaping lower pulleys and spinning the blower harder

Factory LT4 spins the 1.7 liter blower to roughly 20,150 RPMS at 6400 RPM and I'm spinning it currently to 21,754 RPMS (8.09/2.38)=3.39x6400
Here is the pulley combo, did a little R&D for ATI on spacing for a wet sump vette with this supercharger, so if you need the spacer let them know... If you are a Dry sump the Z06 pulleys will work perfect.
Here are the ATI pulleys, blower speed can be increased past 25,000 pretty easy, just want to do testing with IAT/IAT recovery an fuel capability before spinning the little 1.7 that fast.....





Instead of redrilling the LT1 heads to accept the LT4 blower, I decided to make a spacer setup that bolts down using the LT1 bolt pattern which also has provisions for the LT4 blower. I used GM silicone to seal the 3/8 plates, and technically these SHOULD help slightly thermally and increase runner length slightly increasing tq production, but that's just an added benefit. Formato is a friend of mine and may offer these for individuals in the future.





Instead of using the LT4 Coolant pump and attempting to wire to the ECU, I decided to use the Edelbrock C7 kit Pump harness and coolant pump/bracket. Very easy to install pump powered through the evap system and alternator, no cutting, plug/play.

Also I decided to use the factory Z06 coolant tank in conjunction with the edelbrock coolant tank/bracket to double the coolant capacity over the stock Z06

T/A KID

Reserved for content


Instead of wiring up an IAT2 sensor, decided to have the IAT in the MAF broken out and I installed the bung post rotor/intercooler beside the number 8 runner. This is the CTSV/ZR1 IAT and I updated the tune IAT table with new data to reflect this change.






For the MAP I used the LS9 map and installed this in the factory spot in the blower snout. Had an extension harness built for this as well. I plugged off the rear port that is normally used for throttle pressure sensor and I deleted the front boost limiter and drilled tapped the port opening to close it with a cap.








Here is a quick pic of the LT4 pump (top) and the LT1 pump (bottom)..... Few tricks I have in store to really let this rig make some power on the factory LT4 fuel system....



Below Is a pic of the LT4 valley, it has a 1 way check valve in this line (no crankcase boost) but allows LOTS of oil to go right into the blower, this is why many Z06 owners are getting oil in there supercharger system... I used my stingray valley, welded up the end and added a 6an fitting for crankcase ventilation. No Pic, but I welded up the factory opening on the blower. The 90 degree line goes directly to a cathcan with a 1 way checkvalve to the blower snout. This way the blower is still pulling crankcase pressure at ALL times but no oil is getting into the system now.



The stingray AFE intake I modified by adding the 2 quick disconnect fittings to the aluminum 4" inlet in the induction, routed on the bottom for a clean look. This is a Wet sump setup so each valve cover vents to one of these ports.

BlueDevilZ51

Is that the lt4 SC on an LT1 or a LT4 engine swaped into a Stingray?

FYREANT

+1. I need to know more!!

Seannyc

LT4 super charger on to LT1 engine

We're all waitin for results lol

Looks great Btw

C7-Beast

I'm betting it is an LT4 engine. Adding a blower to an LT1 is just a blown LT1. The LT4 is a different beast. My bet is he dropped an LT4 into a Stingray.

Edit: I see the OP says it is an LT1 with and LT4 blower. Cool but it's not an LT4 Stingray.

jacksnorm

I remember you posting your newly purchased A&A Ti Kit for sale opted to use an LT4 1.7 Blower on your LT1. Nice work!!! In for the final results..

T/A KID

Ehhh, LT4 Blown Stingray sounds pretty good......

T/A KID

Yep that was me.... Nothing wrong with Andys setup, a Ti vortech is a 1400 CFM blower capable of more power than the LT4. Wanted to have something unique for a stingray and I have not seen anyone do the swap yet??? Plus I spent the extra money on the fuel system and still had some left over and Ill make the power I wanted with a ridiculous Tq curve that a centri couldn't touch.

Like taking the car to the track, shooting for high 9's at close to 140

C7-Beast

Nice detail on the swap.

Rooster OG

Impressive. Good job!

Higgs Boson

Nice work, T/A! Looks like you've been busy!

T/A KID

Thanks Higgs... Set this tune up like a NA stingray that moves a lot of air hahaha... Fired right up, plan to dial in the tune this weekend

Seannyc

Sounds like everything went great
Let us know the dyno numbers


Also the price to get the lt4 supthercharger on with all the Accessories
if you don't mind

Elite275

Awesome and innovative project. Keep the info coming as the build/tuning completes.

chefcg1

Awesome information. Can't wait to see results.

C7&7

sammy burks

T/A KID

Getting some PMs about edelbrock part numbers

Edelbrock expansion tank
PN-31-1585 $68.99 bought a radiator cap for $8 at local parts store fits perfect and entire thing looks oem.. This part is plastic so it won't heat soak, WAY cheaper than all the aftermarket units made out of alumnium.. Tank holds around 1-1.5 gallons

Coolant Pump
PN-51-4201 $208.99
Comes with pump and rubber isolater (bracket listed in original post)

I have heat exchanger info as well, but I used the oem z06 setup for my build

3honkz

does the pump comes with harness or do we have to order separate?