Install of TorqHead Ltd. 24x System (Project Tilikum)
02-02-2018, 03:52 PM
#21
Race Director
Its hard to say for certain since so much depends on how you would use the car. For myself, I tend to think it would be worth it because I appreciate good fuel mileage and drivability. For someone who is looking for maximum power it would probably not be worth it.
02-02-2018, 04:04 PM
#22
Team Owner
Pro Mechanic
No way you're going to get fuel mileage that will make the cost worth it. No way. That's like putting a custom-smashed TPI intake on an LT1 to save on gas.
It's not really like that, but you get the point; no conceivable ROI.
As for drivablity, I doubt you could tell the diff...but maybe. It's my opinion that sequential EFI was implemented to meet emissions requirements that we don't need to meet and don't care about.
It's not really like that, but you get the point; no conceivable ROI.
As for drivablity, I doubt you could tell the diff...but maybe. It's my opinion that sequential EFI was implemented to meet emissions requirements that we don't need to meet and don't care about.
02-02-2018, 04:21 PM
#23
Race Director
No way you're going to get fuel mileage that will make the cost worth it. No way. That's like putting a custom-smashed TPI intake on an LT1 to save on gas.
It's not really like that, but you get the point; no conceivable ROI.
As for drivablity, I doubt you could tell the diff...but maybe. It's my opinion that sequential EFI was implemented to meet emissions requirements that we don't need to meet and don't care about.
It's not really like that, but you get the point; no conceivable ROI.
As for drivablity, I doubt you could tell the diff...but maybe. It's my opinion that sequential EFI was implemented to meet emissions requirements that we don't need to meet and don't care about.
Even if we could establish a baseline cost for the system, we sure cant establish a cost for gasoline going forward into the future. I do know that West Texas crude oil is up about 40% in the last 6 months. Not that its going to continue going up but no one will be surprised if it does.
Last edited by PatternDayTrader; 02-02-2018 at 04:22 PM. Reason: mpg ... not mph
02-02-2018, 04:29 PM
#24
Team Owner
Pro Mechanic
I thought that you were talking about the TH system for an L98, so I was basing the cost on that; over $1000.00
What is the diff in fuel economy between the '93 Batch LT1 and the '94 Sequential LT1? Is it 1 mpg?
What is the diff in fuel economy between the '93 Batch LT1 and the '94 Sequential LT1? Is it 1 mpg?
02-02-2018, 04:36 PM
#25
Race Director
One guy in Ft worth(30 minutes from me) has the system in his 94. His 383 engine is almost complete. I'm pretty sure this system will work great.
Last edited by 1993C4LT1; 02-02-2018 at 04:36 PM.
02-02-2018, 04:43 PM
#26
Team Owner
This product probably won't make enough fuel economy to make ends meet unless you have put on some insane number of miles. It may make tuning way easier
02-02-2018, 04:45 PM
#27
Race Director
I would think if they develop an L98 system then it would be at least 1000 bucks ...
Last edited by PatternDayTrader; 02-02-2018 at 04:48 PM.
02-02-2018, 04:46 PM
#28
Race Director
02-02-2018, 04:47 PM
#29
Team Owner
Pro Mechanic
1993; 15/22
1994; 15/22
But this '92 ROAD TEST shows 17/25 -which seems a lot more realistic to me.
It think the only place you'd see mpg gains w/SFI would be in city driving and it would be pretty marginal. Grab an EEC IV from the bone yard and throw it on an L98...see what the diff is.
02-02-2018, 04:54 PM
#30
Team Owner
Pro Mechanic
02-02-2018, 05:00 PM
#31
Race Director
Copy that. So the case for SFI doesn't look great; my '92 consistently gets better than that on the highway, with a peak of over 30 mpg on ONE ROAD TRIP
02-03-2018, 09:51 AM
#32
Race Director
Digression on sfi/l98
I was thinking about this last night and realized it would take very little effort to adapt the distributor from the truck engine coded "R" for the l98 application. It wouldn't be a coil over plug system but you don't have distributor problems on the l98 either.
02-03-2018, 10:10 AM
#33
Team Owner
Pro Mechanic
Are you talking about the L31 Vortec truck engine?
That would be a good/cheap way to get SFI on an L98, but you'd need to add:
*4x crank sensor (Use the L31 timing cover and parts)
*3 more o-2 sensors
..in addition to the dist, harness and ECM.
If you used the later '80's Ford EEC IV, you could do it w/only a distributor mod, harness and ECM swap.
That would be a good/cheap way to get SFI on an L98, but you'd need to add:
*4x crank sensor (Use the L31 timing cover and parts)
*3 more o-2 sensors
..in addition to the dist, harness and ECM.
If you used the later '80's Ford EEC IV, you could do it w/only a distributor mod, harness and ECM swap.
Last edited by Tom400CFI; 02-03-2018 at 10:13 AM.
02-03-2018, 10:44 AM
#34
Race Director
Are you talking about the L31 Vortec truck engine?
That would be a good/cheap way to get SFI on an L98, but you'd need to add:
*4x crank sensor (Use the L31 timing cover and parts)
*3 more o-2 sensors
..in addition to the dist, harness and ECM.
If you used the later '80's Ford EEC IV, you could do it w/only a distributor mod, harness and ECM swap.
That would be a good/cheap way to get SFI on an L98, but you'd need to add:
*4x crank sensor (Use the L31 timing cover and parts)
*3 more o-2 sensors
..in addition to the dist, harness and ECM.
If you used the later '80's Ford EEC IV, you could do it w/only a distributor mod, harness and ECM swap.
I love the idea of use the timing cover/crank sensor. The alternative is to come up with some kind of different balancer which sounds expensive, or pick up the crank position data at the distributor which probably wouldn't be precise enough. It might be ok. The ECM is already part of the lt1 kit, so is a harness, so I would think adapting the those parts for the l98 wouldn't increase the cost. It would be better to have an o2 in each bank but it would still work with just the one.
Its an interesting idea that will probably never materialize. I just like the idea of more precise fuel control.
02-03-2018, 11:14 AM
#35
Team Owner
Pro Mechanic
Yeah I think L31 is the engine.
I love the idea of use the timing cover/crank sensor. The alternative is to come up with some kind of different balancer which sounds expensive, or pick up the crank position data at the distributor which probably wouldn't be precise enough. It might be ok. The ECM is already part of the lt1 kit, so is a harness, so I would think adapting the those parts for the l98 wouldn't increase the cost. It would be better to have an o2 in each bank but it would still work with just the one.
Its an interesting idea that will probably never materialize. I just like the idea of more precise fuel control.
I love the idea of use the timing cover/crank sensor. The alternative is to come up with some kind of different balancer which sounds expensive, or pick up the crank position data at the distributor which probably wouldn't be precise enough. It might be ok. The ECM is already part of the lt1 kit, so is a harness, so I would think adapting the those parts for the l98 wouldn't increase the cost. It would be better to have an o2 in each bank but it would still work with just the one.
Its an interesting idea that will probably never materialize. I just like the idea of more precise fuel control.
I think a dist mounted "crank" sensor would be precise enough...as long as your timing chain wasn't a total "sloppy joe".
Like I said earlier, I don't think you'd get a real world ROI on this, but the project would be fun to do, and the L31 drivability is fantastic, so it sure wouldn't hurt.
02-03-2018, 12:38 PM
#36
Pro
just had a online chat with on of their reps. A kit is in development for the 92-93 models. They are hoping to at the very least have a rough working model by the end of the year, if not more. So from the rep told me, expect 92-93 compatibility by the end of next year.
02-03-2018, 12:48 PM
#37
Race Director
just had a online chat with on of their reps. A kit is in development for the 92-93 models. They are hoping to at the very least have a rough working model by the end of the year, if not more. So from the rep told me, expect 92-93 compatibility by the end of next year.
I love that ...
02-03-2018, 07:29 PM
#38
Team Owner
just had a online chat with on of their reps. A kit is in development for the 92-93 models. They are hoping to at the very least have a rough working model by the end of the year, if not more. So from the rep told me, expect 92-93 compatibility by the end of next year.
02-04-2018, 08:32 AM
#39
Pro
IIRC, they also said that the L98 to LS swap would be on the "to do" list. Unfortunately, because of it being on a "to do" list, it would be impossible to know if it will get done or how much it will cost but they are thinking it shouldn't be terribly more than the $2000 figure for now, ASSUMING it gets done and ASSUMING there are enough people wanting one to justify the time to make it.
02-04-2018, 10:17 AM
#40
Team Owner
The rep never mentioned the L98. He only mentioned currently working on a kit for the 92-93 LT1 and that they were getting a good amount of requests from LT5 owners as well. You L98 owners may want to start getting in touch with them and let them know about the interest in a L98 kit also.
When I know the final amount, it will hopefully come before my L98 breaks so I have a decision as to whether to do this or get a C5 or C6 depending on the price factor. If this can make me an offer I can't refuse (engine and trans), maybe. OTOH, if it comes to within a couple grand of a C5, probably not.