[JimW]

Originally Posted by nicktechla

it looks like its optional

https://whipplesuperchargers.com/ind...product_id=454

I think what he was asking .. and if not I would like to know .. if I already have hp tuners.. and don't need the optional flash tool .. will you provide the calibration file or discount it since I don't need the flash tool?


I'm on the fence .. looking at procharger d1x or f1.

[djfury05]

Originally Posted by nicktechla

What 102mm TB do you guys recommend?

AFAIK only Nick Williams make one, and Nick always has quality stuff. Katech sells it and WeaponX and maybe others as well. Pricey at $650.

I'm still waiting for my kit to arrive but the setup will be the Whipple 2.9L, Tony Mamo LT4 ported throttle body, Rotofab CAI dry, Alky dual nozzle meth kit, flex fuel kit and 1 7/8" ARH headers/off road H pipe to begin with.

Later will come a 32% fuel lobe cam, ported heads (since they have to come off anyways for cam), and possibly low side auxiliary fuel system and larger injectors.

[USP45]

Originally Posted by Whipple Charged

Limit is fuel, not the SC. With a 102mm TB and all the other mods, the SC will have no issue making 1100RWHP which is essentially the limit at this time. But were always progressing and working on things.

Note the stock TB has nearly 3" of vacuum with our SC with the stock crank pulley, 3.5" SC pulley so a larger TB would be beneficial from the start.

Thanks

Seeing as how there is really not a good high side fuel pump available right now (I do not think the Lingenfelter hpfp is worth the money personally... $1500 for a 9% gain does not strike me as a good cost/benefit ratio) do you think a low side system like the DSX system will support your 2.9?

I am about to have my ZL1 tuned with RotoFab, ported stock tb (understand I will need larger), heads/cam, headers, exhaust, 15% lower, e85 kit and DSX low side fuel. I am contemplating your 2.9 as the next step but fueling is my main concern right now...

[djfury05]

Originally Posted by USP45

Seeing as how there is really not a good high side fuel pump available right now (I do not think the Lingenfelter hpfp is worth the money personally... $1500 for a 9% gain does not strike me as a good cost/benefit ratio) do you think a low side system like the DSX system will support your 2.9?

I am about to have my ZL1 tuned with RotoFab, ported stock tb (understand I will need larger), heads/cam, headers, exhaust, 15% lower, e85 kit and DSX low side fuel. I am contemplating your 2.9 as the next step but fueling is my main concern right now...

IMO a low side kit at the level of power you're referring to will mainly serve to keep the pressure to the HPFP steady and happy. I have done A LOT of asking around about fuel and the limit is the HPFP and injectors. You just can't force more fuel through either after a certain point. Like you say the Lingenfelter HPFP isn't worth the money (I agree) and I've read it doesn't work with a 32% cam lobe anyways. Injectors would be a wise choice though. You can get a higher volume of fuel which is what's needed in the same cycle and short tuning window. Only thing to watch after this would be rail pressure from the HPFP.

IMO right now you're better off adding a meth kit as supplement fueling until an aftermarket solution comes along for the high side of things.

[Evolvedx27]

Originally Posted by djfury05

AFAIK only Nick Williams make one, and Nick always has quality stuff. Katech sells it and WeaponX and maybe others as well. Pricey at $650.

I'm still waiting for my kit to arrive but the setup will be the Whipple 2.9L, Tony Mamo LT4 ported throttle body, Rotofab CAI dry, Alky dual nozzle meth kit, flex fuel kit and 1 7/8" ARH headers/off road H pipe to begin with.

Later will come a 32% fuel lobe cam, ported heads (since they have to come off anyways for cam), and possibly low side auxiliary fuel system and larger injectors.

I would get the larger throttle body if you plan on doing the whipple. You're leaving power on the table for only 300 bucks more.

[djfury05]

Originally Posted by Evolvedx27

I would get the larger throttle body if you plan on doing the whipple. You're leaving power on the table for only 300 bucks more.

I'm waiting for a PM back from Whipple on how much power they think is being left on the table because I have no clue.

[USP45]

Originally Posted by djfury05

IMO a low side kit at the level of power you're referring to will mainly serve to keep the pressure to the HPFP steady and happy. I have done A LOT of asking around about fuel and the limit is the HPFP and injectors. You just can't force more fuel through either after a certain point. Like you say the Lingenfelter HPFP isn't worth the money (I agree) and I've read it doesn't work with a 32% cam lobe anyways. Injectors would be a wise choice though. You can get a higher volume of fuel which is what's needed in the same cycle and short tuning window. Only thing to watch after this would be rail pressure from the HPFP.

IMO right now you're better off adding a meth kit as supplement fueling until an aftermarket solution comes along for the high side of things.

I know, just have been hoping to avoid it. In my past experience modding the more totally non-stock systems you introduce the higher the chances for failure. Mr. Murphy has bent me over a few times! I guess time will tell relating to further developments with the high side system, the LT4 engine is still relatively green having only been arouund since 15...

[Evolvedx27]

Originally Posted by djfury05

I'm waiting for a PM back from Whipple on how much power they think is being left on the table because I have no clue.

10-15 I'm gonna assume.

[djfury05]

Originally Posted by Evolvedx27

10-15 I'm gonna assume.

They said about 25 rwhp at upper rpms with stock crank pulley and supplied 3.5" Whipple pulley on 93 octane. I imagine the harder you're spinning the blower the higher the gains will be though.

[Whipple Charged]

Originally Posted by JimW

I think what he was asking .. and if not I would like to know .. if I already have hp tuners.. and don't need the optional flash tool .. will you provide the calibration file or discount it since I don't need the flash tool?


I'm on the fence .. looking at procharger d1x or f1.

Yes certainly will. There would be no charge to share a file, but there would be a charge to build a file as we have to lisc it.

[Whipple Charged]

Originally Posted by USP45

Seeing as how there is really not a good high side fuel pump available right now (I do not think the Lingenfelter hpfp is worth the money personally... $1500 for a 9% gain does not strike me as a good cost/benefit ratio) do you think a low side system like the DSX system will support your 2.9?

I am about to have my ZL1 tuned with RotoFab, ported stock tb (understand I will need larger), heads/cam, headers, exhaust, 15% lower, e85 kit and DSX low side fuel. I am contemplating your 2.9 as the next step but fueling is my main concern right now...

Fuel is certainly an issue. Keeping the low side up to max psi keeps the efficiency higher on the HPFP so you will get the best case, but that HPFP is the crutch at this point. So yes I think it will support to a point and then fuel supply will be an issue, before the SC runs out of capacity.

[BlaqWhole]

Originally Posted by Whipple Charged

I'd be happy to answer any of your questions guys.

The one question in regards to stock calibration, it does actually run with stock calibrations, with the standard pulley, it makes 2.5-3.0psi more boost which is not enough to set failure modes, codes, etc. Its a touch on the rich side which limits power and is just at the edge of some limits.

I gotta question this...or anyone who says that an extra 2.5-3 psi of boost doesn't warrant a tune. A few years ago a top tuner in the Mustang world told a customer of his that adding a smaller pulley on his GT500 would not require a tune revision. Guess what happened. Now I'm not gonna harp on this, you guys are the experts, but I think adding an extra 2-3 psi boost thru a blower swap without a tune is very dangerous water. People have gotten DTCs and leaned out from simple CAI installs, ported TBs, etc. And a set of headers without a tune is enough to cause catastrophic engine failure. So how can adding an extra 2-3 psi boost thru a blower that has 1.2 liters more displacement than the stock unit and is a twin screw as opposed to a TVS not gonna need a tune? I just wanna clear that up because I gotta say, you guys are the pros and all, but that statement doesn't sit right.

[VAZL1]

Originally Posted by USP45

I know, just have been hoping to avoid it. In my past experience modding the more totally non-stock systems you introduce the higher the chances for failure. Mr. Murphy has bent me over a few times! I guess time will tell relating to further developments with the high side system, the LT4 engine is still relatively green having only been arouund since 15...

"Mr. Murphy has bent me over a few times!"

[Evolvedx27]

Originally Posted by djfury05

They said about 25 rwhp at upper rpms with stock crank pulley and supplied 3.5" Whipple pulley on 93 octane. I imagine the harder you're spinning the blower the higher the gains will be though.

Even better. 300 bucks extra. No brainer.