Edelbrock supercharger potential

[kidgogeta]

I'm putting down 266whp on my 6at with JDL UEL right now 93 octane. On 94 cnd I put down 260whp (much less hp/torque under curve tho) and lost to brothers cts-v1 by about a car length, would really love to get to the 300 number.

[Irace86]

Originally Posted by mitch t

Not sure what you guys are getting at.

My OP was asking what I can expect reliably w the stock bottom end and fuel system, (sounds like about 300max) and what the blower would be capable of with a built bottom end and fuel mods (probably more than I need)

I don't want to spend a bunch of $$ on a tune, only to find that it either doesn't make much power, or is too aggressive and causes an engine failure.

Nor do I want to build a motor and fuel setup, if the blower is running out of headroom to take advantage of it.

I think everyone has been pretty informative, and all their answers seem pretty reasonable to me.

Im just venting. My bad. Just like a million posts n conversations on the power potential of individual kits and the different levels of built engines. Even on this forum page n the second one are multiple threads with "how much power if..." not to mention inside the individual charger threads n in the stickies. Sometimes its like beating a dead horse.

[Lunatic]

Before looking for more power I would suggest riding in the standard Edelbrock setup. I have the standard size pulley and make 323 at the wheels on e-85. More than enough to destroy my 255 tires. I live in Indio, your more than welcome to go for a ride if you want to come over here.

[mitch t]

Originally Posted by Lunatic

Before looking for more power I would suggest riding in the standard Edelbrock setup. I have the standard size pulley and make 323 at the wheels on e-85. More than enough to destroy my 255 tires. I live in Indio, your more than welcome to go for a ride if you want to come over here.

I'm running the factory Edelbrock pulley and tune, on regular 91 octane.

I am a somewhat enthusiastic autocrosser, and I am running a super sticky 265/35-18 tire, and power is OK now, but I am thinking a bit more might help me run with the Vette guys.

[Matt@Cosworth]

Originally Posted by mitch t

Not sure what you guys are getting at.

My OP was asking what I can expect reliably w the stock bottom end and fuel system, (sounds like about 300max) and what the blower would be capable of with a built bottom end and fuel mods (probably more than I need)

I don't want to spend a bunch of $$ on a tune, only to find that it either doesn't make much power, or is too aggressive and causes an engine failure.

Nor do I want to build a motor and fuel setup, if the blower is running out of headroom to take advantage of it.

I think everyone has been pretty informative, and all their answers seem pretty reasonable to me.

the reason I say that folks don't like the answer is that this isn't particularly robust engine, it was engineered for 200Bhp and it needs a reasonable level of work to get it to take boost reliably but when you have tuning house etc kits coming on and saying we make 400bhp on the stock bottom end then this confuses the 1st time poster / newbies

so the question keeps cropping up, mainly because the stock chassis is so good
after all the 1st thing you think when driving an '86 is this thing needs more poke

[mitch t]

Originally Posted by Matt@Cosworth

the reason I say that folks don't like the answer is that this isn't particularly robust engine, it was engineered for 200Bhp and it needs a reasonable level of work to get it to take boost reliably but when you have tuning house etc kits coming on and saying we make 400bhp on the stock bottom end then this confuses the 1st time poster / newbies

so the question keeps cropping up, mainly because the stock chassis is so good
after all the 1st thing you think when driving an '86 is this thing needs more poke

I understand and agree with basically everything you are saying, but I would love to hear your opinion on the original questions, not just about the nature of the internet.

As I imagine you are quite a bit more knowlegeable on the matter than the average forum poster, your input would be greatly appreciated.

1. Is it possible to get a meaningful increase in power, while maintaining reliability, with just a third party tune?

2. Is the Eaton 1320 unit and intercooler setup on the Edelbrock kit capable of making signifigant power, if I build an engine for it? or will I need to ditch the blower for something with more potential?

If you have already dealt with this, you can just post a link to the relevant thread.

Thanks,
Mitch

[CSG Mike]

Originally Posted by mitch t

I understand and agree with basically everything you are saying, but I would love to hear your opinion on the original questions, not just about the nature of the internet.

As I imagine you are quite a bit more knowlegeable on the matter than the average forum poster, your input would be greatly appreciated.

1. Is it possible to get a meaningful increase in power, while maintaining reliability, with just a third party tune?

2. Is the Eaton 1320 unit and intercooler setup on the Edelbrock kit capable of making signifigant power, if I build an engine for it? or will I need to ditch the blower for something with more potential?

If you have already dealt with this, you can just post a link to the relevant thread.

Thanks,
Mitch

1. yes

2. yes.

[Matt@Cosworth]

answers to 1 & 2
1) If you mean using someone like Delicious tuning to change the settings over the Edelbrock CARB tune - then yes there should be a reasonable gain I'd imagine at least 10Bhp
2) I don't know the intercooler capacity on the Edelbrock setup, based on what I know about our setup then I'd estimate its about a 20Kw capacity (ours is 35Kw) so if you run the charger to maximum speed / pressure ratio ( 2.1 Bar manifold pressure) its likely to be putting out 120 degree C of air which if you have 20Kw to cool works out roughly at 80degrees C post intercooler - this will limit power
difficult to say by how much but it probably means about 330 to 340bhp or so.

please bear in mind these numbers are very much a 'finger in the air' figure and I'd love to see some real data (not on E85 mind, on 91 or 93 full gasoline)

[Bfranklyn86]

Originally Posted by Matt@Cosworth

answers to 1 & 2
1) If you mean using someone like Delicious tuning to change the settings over the Edelbrock CARB tune - then yes there should be a reasonable gain I'd imagine at least 10Bhp
2) I don't know the intercooler capacity on the Edelbrock setup, based on what I know about our setup then I'd estimate its about a 20Kw capacity (ours is 35Kw) so if you run the charger to maximum speed / pressure ratio ( 2.1 Bar manifold pressure) its likely to be putting out 120 degree C of air which if you have 20Kw to cool works out roughly at 80degrees C post intercooler - this will limit power
difficult to say by how much but it probably means about 330 to 340bhp or so.

please bear in mind these numbers are very much a 'finger in the air' figure and I'd love to see some real data (not on E85 mind, on 91 or 93 full gasoline)

Delicious tuning made 283hp to the wheel with the edelbrock on the smallest pulley (TJs car). This was on 91, and a built motor using stock compression ratio, the combination of which presumably produced too much heat for decent power numbers. The same motor made 420whp on e85.

Edit: I think that is also with a UEL manifold which may not be optimal.

I would hope that with 93 and a slight drop in compression that 320whp would be possible, but Matt you can let us know how the TVS900 goes on a built motor and greater cooling capacity in due course!

[mitch t]

Originally Posted by Bfranklyn86

Delicious tuning made 283hp to the wheel with the edelbrock on the smallest pulley (TJs car). This was on 91, and a built motor using stock compression ratio, the combination of which presumably produced too much heat for decent power numbers. The same motor made 420whp on e85.

Edit: I think that is also with a UEL manifold which may not be optimal.

I would hope that with 93 and a slight drop in compression that 320whp would be possible, but Matt you can let us know how the TVS900 goes on a built motor and greater cooling capacity in due course!

How much boost are they making on the smaller pulleys?

Also, if TJ is running 91 octane and a built motor, what was the motivation for keeping the stock CR? i would think dropping it a few points would give the tuner a little more room, as far as timing and fuel goes. do you guys just figure that the DI setup is good enough to overcome a detonation problem?