My Corvette Life: 1990 Callaway Twin Turbo Project

Discussion of Corvette based Callaway Cars including: 1987-1991 RPO B2K Callaway Twin Turbo Corvettes (C4); Callaway SuperNatural Corvettes (CL-1/CR-1); Callaway C12; Supercharged Corvettes; Callaway C16; 6th Generation Callaway Corvettes (SC560, SC580, SC606, SC616, SC620, SC652); 7th Generation Callaway Corvettes (SC627/SC757); NEW Callaway C8 Corvettes - and more!
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My Corvette Life
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Re: My Corvette Life: 1990 Callaway Twin Turbo Project

Post by My Corvette Life »

Can anyone tell me the correct fuel pump and replacement injectors?
*89x2*
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Re: My Corvette Life: 1990 Callaway Twin Turbo Project

Post by *89x2* »

Regarding the Fuel Pump, here's the info:
viewtopic.php?f=4&t=799

On Fuel Injectors, if you can wait for a sale, FIC often discounts 10%-20%, depending on the sale. Mention Callaway Owners Group when you speak to Jon Banner at FIC, as he's treated us very fairly.
Here's' the pert number:
https://fuelinjectorconnection.com/coll ... jector-set

The Stock Rochester Greenish Gray units are GARBAGE. The stainless Delphi units are proven reliable, and they FIT. I get an o ring kit (you will need more o-rings to do your rails, if you do the job completely, and I can supply the part numbers from AutZone, locally). I also suggest replacing the regulator if it's sat, which is cheap insurance.

I hope this helps, and look forward to your resulting success.
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SurfnSun
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Re: My Corvette Life: 1990 Callaway Twin Turbo Project

Post by SurfnSun »

Bosch 0580254982 is the one listed in the other thread
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Re: My Corvette Life: 1990 Callaway Twin Turbo Project

Post by My Corvette Life »

Excellent! Thanks you.
*89x2*
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Re: My Corvette Life: 1990 Callaway Twin Turbo Project

Post by *89x2* »

Hey Chris,

You should push notifications of new videos you add. Looks like 4 have been added since your last post:







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My Corvette Life
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Re: My Corvette Life: 1990 Callaway Twin Turbo Project

Post by My Corvette Life »

*89x2* wrote: Sat Oct 09, 2021 10:33 am Hey Chris,

You should push notifications of new videos you add. Looks like 4 have been added since your last post:
Subscribe to the channel and click the bell button and you will be notified every time I post a video.
*89x2*
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Re: My Corvette Life: 1990 Callaway Twin Turbo Project

Post by *89x2* »

Another video added, and to give you insight on your question about why the oil fill is on the driver's side vs. passenger side, it's so you can fill the car with oil without removing the intercooler.
You may not have noticed how the oil cap was far enough back, which allows a small diameter funnel to get in there and fill/top-off. :thumbs

Now to answer the rest, the switch (the bracket with wires) appears like a nitrous activation switch which were common on NOS systems like the one crudely installed on your car. What happens, is when one goes WOT, it kicks the switch and if activated by a secondary switch (usually in the dash somewhere), then nitrous is fed from the solenoids.

On the spark plug wrap, I can't say for sure about the origins of the silver heat sleeve, but the factory heat covering over the EGR Tube, I mentioned already, it's not removable. Your car has some other shielding not consistent with other Callaway Twin Turbo Corvettes, presumably added by the hot rod owner before you. Anyways, the one over the plug wires looks like the velcro closure kind, but was tough to see. Maybe you can confirm :wtf

In the meantime, nice job polishing the one intercooler. Here's to the rest taking shape in similar form. :hi


*89x2*
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Re: My Corvette Life: 1990 Callaway Twin Turbo Project

Post by *89x2* »

I saw another video was added, this one on the owners manual

Keep em coming

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