AGP Twin Turbo Owners

[IKILLEDSUPERMAN_ZL1]

Stock injectors and fuel pump? Yikes!

[GAFreddy]

Originally Posted by IKILLEDSUPERMAN_ZL1

Stock injectors and fuel pump? Yikes!

Yea, I was blown away. He legit nice guy, didn't seem crazy, but I just didn't get that.

I'm beyond curious to hear from the turbo pros. I'm not so versed in the art, so I yield to the ones that are. Is that actually plausible and realistic?

[dreksnot]

Originally Posted by GAFreddy

... He said he's putting down 701 to the wheels with stock internals, which I believe, based on what I've seen here. Then he told me he has stock injectors and fuel pump. Basically, he has exhaust, the 54/57 kit and a tune. Does this seem legit?

I think that individual misunderstood what he was told. Show me the dyno sheet. Even altitude corrected to 7000ft elevation and using horsepower at the crank - I can't calculate the 701hp claim with stock injectors, which would still need 50lb/hr injectors. The stock ones, I believe, are 43lb/hr. And, a ZL1 pump could get 700whp with larger injectors, maybe 58lb/hr. The TT setup can make the HP with adequate fueling, which a stock fuel pump and stock injectors cannot supply.

[GAFreddy]

Originally Posted by dreksnot

I think that individual misunderstood what he was told. Show me the dyno sheet. Even altitude corrected to 7000ft elevation and using horsepower at the crank - I can't calculate the 701hp claim with stock injectors, which would still need 50lb/hr injectors. The stock ones, I believe, are 43lb/hr. And, a ZL1 pump could get 700whp with larger injectors, maybe 58lb/hr. The TT setup can make the HP with adequate fueling, which a stock fuel pump and stock injectors cannot supply.

Gotcha, that was my thought. He showed me pics of the setup, but clearly I couldn't tell what fuel supply he had. I try not to make people feel stupid, even when they say stupid $hit. He was nice, so I left it at that!

I think I remember talking to someone that said with a 100% stock fuel supply, you could run the system with the smallest spring. That just seems like a tease to me! I've got 850's and a Fore Double, so I think I can get to 700whp with that setup, and stock internals. I think it's doable....until the rear goes bang!

[RealQuick]

Depending on the year of his camaro, he could already have the ZL1 pump... I would think he needs to spray alot of methanol to reach those numbers with stock injectors... but stranger things have happened.

I made 989rwhp/1031rwtq on 93 octane with 1000CC injectors / ZL1 PumP/ and meth injection... seems impossible... but meth is an incredible drug

[brick59]

Meth can stretch your injectors out but how much is the question, but if you're running on the edge you are taking a chance of putting holes in your pistons

[GAFreddy]

Originally Posted by RealQuick

Depending on the year of his camaro, he could already have the ZL1 pump... I would think he needs to spray alot of methanol to reach those numbers with stock injectors... but stranger things have happened.

I made 989rwhp/1031rwtq on 93 octane with 1000CC injectors / ZL1 PumP/ and meth injection... seems impossible... but meth is an incredible drug

What year SS had the ZL1 pumps? I wasn't aware of that. Gotta love this site!

Originally Posted by brick59

Meth can stretch your injectors out but how much is the question, but if you're running on the edge you are taking a chance of putting holes in your pistons

Yea, I've heard over and over about why I should go meth. Not a lot of negatives to it, I hear. My goal is 625-650whp. If I can do that with the stock bottom end, the 850's and Fore Double pump, I'll happy. I want it to be tough, but tame.

[racesloth]

With a Fore double and 850's you should be good to 625-650. Running meth/H2O 50/50 is good for cooling and a bit more timing. Running 100% meth as a fuel is different if you are depending on it for octane/hedge against pre-ignition, you run the risk of if/when the meth pump gives out - you could grenade your engine.

[RealQuick]

I agree, dont use meth to stretch your fuel system. I just used it in this thread as an example of how power can be made with components that people expect not to be able to support it.

[GAFreddy]

Originally Posted by racesloth

With a Fore double and 850's you should be good to 625-650. Running meth/H2O 50/50 is good for cooling and a bit more timing. Running 100% meth as a fuel is different if you are depending on it for octane/hedge against pre-ignition, you run the risk of if/when the meth pump gives out - you could grenade your engine.

Good to know. Reckon one day I'll go meth, until then I wanna keep it as simple as I can. Is heat a real issue with twins? I went with a Mishomoto aluminum radiator and 160 stat. It has literally dropped the operating temps to 170 in the 90-95 degree heat. I wonder if I'll be able to keep temps in that range once the twins are in?

Originally Posted by RealQuick

I agree, dont use meth to stretch your fuel system. I just used it in this thread as an example of how power can be made with components that people expect not to be able to support it.

Gotcha.


Do most the TT guys in here upgrade their rear ends as well? Like pretty much everything else n the build world I get a lot of mixed info. After I narrowed down the simple build I want to do, I am on the fence about the rear end. Ima do rear axles, might as well go 1400hp HD, in case I want to build more in the future. But the actual rear and driveline I'm on the fence about.

I thought the TT build would be a lot easier to plan. But once you pop, I guess you can't stop.

[HOJO]

Yea, I've heard over and over about why I should go meth. Not a lot of negatives to it, I hear. My goal is 625-650whp. If I can do that with the stock bottom end, the 850's and Fore Double pump, I'll happy. I want it to be tough, but tame.

I have an AGP kit with twin 57/57’s and at 648 RWHP on 8 lbs of boost. I have a ZL1 fuel pump with a JMS boost a pump and quite a bit of room left for fueling. Just to give you an idea of what can be accomplished with minimal expense. But as we all know, that power level will only keep you happy for so long and you’ll want to up the boost. Plan accordingly on your fuel system and do it once. Doing it twice gets expensive n

[GAFreddy]

Originally Posted by HOJO

Yea, I've heard over and over about why I should go meth. Not a lot of negatives to it, I hear. My goal is 625-650whp. If I can do that with the stock bottom end, the 850's and Fore Double pump, I'll happy. I want it to be tough, but tame.

I have an AGP kit with twin 57/57’s and at 648 RWHP on 8 lbs of boost. I have a ZL1 fuel pump with a JMS boost a pump and quite a bit of room left for fueling. Just to give you an idea of what can be accomplished with minimal expense. But as we all know, that power level will only keep you happy for so long and you’ll want to up the boost. Plan accordingly on your fuel system and do it once. Doing it twice gets expensive n

Awesome, thank you for the advice! Thats exactly what I am looking for, power wise. True. Makes me question if the 850's are the right call.

What size injectors you got? Stock rear?

[HOJO]

Originally Posted by GAFreddy

Awesome, thank you for the advice! Thats exactly what I am looking for, power wise. True. Makes me question if the 850's are the right call.

What size injectors you got? Stock rear?

I went with 1000cc injectors thinking I'd never go more than 900 rwhp. I probable should have gone with 1300 for good measure. Last year I but in a complete rear cradle with diff and axels from a ZL1. I kept my OEM unit I took out as the car is a 1LE and only has 8500 miles. If your only doing roll racing with 600-650 rwhp your rear end should hold for quite a while, its the hard launches from a dig that will destroy it quickly.

[GAFreddy]

Originally Posted by HOJO

I went with 1000cc injectors thinking I'd never go more than 900 rwhp. I probable should have gone with 1300 for good measure. Last year I but in a complete rear cradle with diff and axels from a ZL1. I kept my OEM unit I took out as the car is a 1LE and only has 8500 miles. If your only doing roll racing with 600-650 rwhp your rear end should hold for quite a while, its the hard launches from a dig that will destroy it quickly.

Yea, probably won’t see the track a whole lot. I’m in sticks, so we don’t get to that area very often. More just roll, fun on the backroads.

Good info man, many thanks.