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Search: Posts Made By: Jbrady
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Forum: C6 Corvette ZR1 & Z06
06-16-2009, 05:25 PM
Replies: 185
Views: 29,280
Posted By Jbrady

States that it has the stock manifolds and cat...

States that it has the stock manifolds and cat back system but does it have cats?

Either way... WOW... great job.
Forum: C6 Corvette ZR1 & Z06
04-09-2009, 08:30 PM
Replies: 59
[ZR1] Zr1 Dyno
Views: 4,870
Posted By Jbrady

There are 2 main considerations in intercooler...

There are 2 main considerations in intercooler design. Pressure drop and relative efficiency.

Pressure drop is the resistance the core(s) present to the air flow. Looking at the cross section of...
Forum: C6 Corvette ZR1 & Z06
04-02-2009, 02:16 PM
Replies: 59
[ZR1] Zr1 Dyno
Views: 4,870
Posted By Jbrady

While a nice piece of factory engineering the...

While a nice piece of factory engineering the stock intercooler leaves something to be desired.

http://image.motortrend.com/f/9499807/112_0802_33z+2009_chevrolet_corvette_ZR1+intercooler_photo.jpg...
Forum: C6 Corvette General Discussion
04-02-2009, 01:27 PM
Replies: 112
Views: 1,326
Posted By Jbrady

Any MAN that uses the phrases... "who needs...

Any MAN that uses the phrases...

"who needs that much power"

or

"why have a fast car when the speed limit is..."

...an OLD guy :ack:
Forum: C6 Forced Induction/Nitrous
04-02-2009, 11:43 AM
Replies: 53
Views: 1,236
Posted By Jbrady

Centrifugal superchargers are proven performers. ...

Centrifugal superchargers are proven performers.

That said what is their long term reliability?

Obviously the belt drive MUST be maintained and the higher the power the higher the belt load...
Forum: C6 Corvette ZR1 & Z06
02-25-2009, 01:40 PM
Replies: 89
Views: 10,920
Posted By Jbrady

There are GREAT things about both cars. I...

There are GREAT things about both cars.

I have always graded cars based on content and capabilities before visual impact. That said it has been hard for me to warm up to the Nissan GT-R and I...
Forum: C6 Forced Induction/Nitrous
10-15-2008, 02:44 PM
Replies: 165
Views: 13,258
Posted By Jbrady

Something to point out here about roll cages. ...

Something to point out here about roll cages.

For those who are learning and see trick stuff like cages keep in mind that a "roll" cage is exactly that... to prevent the interior from collapsing...
Forum: C5 Forced Induction/Nitrous
10-13-2008, 03:23 PM
Replies: 71
Views: 3,252
Posted By Jbrady

Sam, obviously major fabrication needed to go...

Sam, obviously major fabrication needed to go GT35s.

IMO, the flattened section that DP created is better than stock but still not as good as my suggestion or APS's solution on the C6 ZO6 system....
Forum: C5 Forced Induction/Nitrous
10-07-2008, 11:14 AM
Replies: 71
Views: 3,252
Posted By Jbrady

Just wait for the temps to dip into the 50s :eek:...

Just wait for the temps to dip into the 50s :eek:

Using 600+rwhp on the street is no easy task not to mention dangerous and illegal. But since we all are professional drivers on a closed track we...
Forum: C5 Forced Induction/Nitrous
10-05-2008, 01:46 PM
Replies: 71
Views: 3,252
Posted By Jbrady

Sam, First of all NICE work, SERIOUS power!...

Sam,

First of all NICE work, SERIOUS power!

Let me re-state and add to earlier recommendations I have made.

I suggest using the stock "pancakes" for the turbo to intercooler boost plumbing....
Forum: C5 Forced Induction/Nitrous
07-09-2008, 02:34 PM
Replies: 32
Views: 1,525
Posted By Jbrady

Tell her that they no longer make the...

Tell her that they no longer make the regular-charger. Let her know that you really needed the ULTRA-charger but out of consideration for her you would settle for the lower cost Super-charger. ...
Forum: C6 Corvette ZR1 & Z06
06-02-2008, 04:51 PM
Replies: 43
Views: 2,487
Posted By Jbrady

Actually it is per instance. Depending on...

Actually it is per instance. Depending on interpretation that could mean one car with 4 catalysts (2 pre, 2 main) could be 4 instances or $100,000 for that one car. The math ain't pretty.
Forum: C6 Corvette ZR1 & Z06
05-09-2008, 04:31 PM
Replies: 50
Views: 6,417
Posted By Jbrady

Too many unknowns and the details will have to...

Too many unknowns and the details will have to wait until the aftermarket gets hands on this combination.

Worth noting is that 4 bolt per cylinder heads are also found on virtually all the high...
Forum: C6 Forced Induction/Nitrous
05-09-2008, 12:17 PM
Replies: 8
Views: 734
Posted By Jbrady

Question: Since ethanol is much higher in octane...

Question: Since ethanol is much higher in octane all things equal the octane of the final product should go higher... why is it not?

I am guessing the base product (gasoline) octane is lower.
Forum: C5 Forced Induction/Nitrous
02-12-2008, 07:07 PM
Replies: 124
Views: 6,478
Posted By Jbrady

Really? Years ago I swapped a 5.0 HO into my old...

Really? Years ago I swapped a 5.0 HO into my old 87 TBird Turbocoupe (bought new in 87)(MT COTY 1987) and loved it. Since it is a FOX chassis (same as Mustang) there is TONS of aftermarket support....
Forum: C5 Forced Induction/Nitrous
12-21-2007, 10:32 PM
Replies: 149
Views: 8,941
Posted By Jbrady

Me? Depends on who you ask. Plenum? This...

Me? Depends on who you ask.

Plenum? This is NOT the same as intake manifold plenum volume. This is creating an area from which the turbos can breathe that is not restricted.

The plenum...
Forum: C5 Forced Induction/Nitrous
12-21-2007, 12:29 PM
Replies: 149
Views: 8,941
Posted By Jbrady

I am glad that APS is creating larger inlets AND...

I am glad that APS is creating larger inlets AND I am impressed with the level of engineering they use...

BUT...

70mm inlets are IMO still less than ideal. I understand from a packaging...
Forum: C5 Forced Induction/Nitrous
12-20-2007, 08:40 PM
Replies: 149
Views: 8,941
Posted By Jbrady

Yes, of course the less backpressure the better...

Yes, of course the less backpressure the better but with catalysts and mufflers needed for most cars there will usually be some backpressure after the turbines.

However, what we would really...
Forum: C5 Forced Induction/Nitrous
12-19-2007, 01:01 PM
Replies: 149
Views: 8,941
Posted By Jbrady

Would APS be willing to share the...

Would APS be willing to share the boost/backpressure relationship on these kits?

18psi boost = X psi backpressure?

Using known variables:
346cid
known/common cylinder head
known/common...
Forum: C5 Forced Induction/Nitrous
12-17-2007, 02:04 PM
Replies: 149
Views: 8,941
Posted By Jbrady

We have a posted dyno showing 812rwhp / 952rwtq...

We have a posted dyno showing 812rwhp / 952rwtq WITH inlet restrictions AT +- 4500rpm :eek: :eek:

The operator added that from there the boost dropped off hard and fast which of course drops power...
Forum: C5 Forced Induction/Nitrous
12-13-2007, 07:36 PM
Replies: 149
Views: 8,941
Posted By Jbrady

Wow! I didn't think anyone had made even 800rwhp...

Wow! I didn't think anyone had made even 800rwhp with the inlets in place. What is your combination? Where did you dyno? What altitude? Is there a correction involved such as an altitude...
Forum: C5 Forced Induction/Nitrous
12-13-2007, 07:14 PM
Replies: 55
Views: 2,306
Posted By Jbrady

Yes if you use the dyno altitude correction...

Yes if you use the dyno altitude correction factor. Otherwise, the cars at altitude have the advantage of less aero drag. The same way a golf ball flies farther at altitude. So, when you dyno,...
Forum: C5 Forced Induction/Nitrous
12-13-2007, 06:10 PM
Replies: 149
Views: 8,941
Posted By Jbrady

Some additional "tech" thoughts: The...

Some additional "tech" thoughts:

The pressure drop at the inlets AND the exhaust pressure at the tailpipes created by a 1000hp engine is not inconsequential.

Good ram air inlets will in fact...
Forum: C5 Forced Induction/Nitrous
12-13-2007, 06:05 PM
Replies: 149
Views: 8,941
Posted By Jbrady

APS Turbo Inlet Restriction

Looks like the reason the APS turbo system struggles above 700rwhp is the air filter to turbo inlet pipes (all the pipes including the accordian and the pancake).
APS quote "the turbo air entry...
Forum: C6 Corvette ZR1 & Z06
12-13-2007, 03:55 PM
Replies: 129
Views: 9,386
Posted By Jbrady

I have no personal affiliations but have...

I have no personal affiliations but have installed the LG longtubes on a buddies 1999 FRC. The LGs were my recommendation as at the time the merge style collector and 1.75" primaries made more sense...
Showing results 1 to 25 of 154
 
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