![]() |
#1 |
Join Date: Aug 2005
Location: Fishers, IN
Posts: 809
|
![]()
Happy new year from Pepmeier Engine Development.
Over the years, we've developed several unique aftermarket performance parts specifically for the LT5. From billet cams, heavy duty cam chains, main bearing and perimeter studs and so on. Our parts are aimed at the very highest performance extreme LT5 applications. We've supplied Bonneville racers and European hillclimb competitors, and several racers in between. I'd like to hear from this community what are your ideas for the next extreme performance components for the LT5? I've got the following items in early-to-mid stage design, waiting interest to finish. But I'd like to know what's next?
From my perspective, an affordable fabricated intake manifold solution would be desirable. The OE setup can be ported to flow well, however, it is tuned to 6000 rpm, and has a rather convoluted flow path. Any 3d printing experts out there? The OE throttle body is a restriction at 700 bhp. I've considered fabricating an alternative big oval configuration. crankcase breathing on the LT5 is pretty ineffective at 7000 rpm. I'd love to develop an affordable dry sump OR vacuum pump working off the stock serpentine drive system. I'll leave the OE replacement market to Jerry and Marc. There are a lot of hard to find parts, and those guys are doing great keeping it alive. What else would you guys like to see?
__________________
Todd ____________________________________ *** our email address has changed! info@pepmeierengines.com pepmeierengines.com Friend us on Facebook too: www.facebook.com/profile.php?id=100011443683384 Pepmeier Engine Development Last edited by tpepmeie; 01-17-2018 at 09:16 PM. |
![]() |
![]() |
![]() |
#2 |
![]() Join Date: Mar 2007
Location: Crystal Lake, IL
Posts: 7,194
|
![]()
Todd I have a coworker and his son just graduated from MIT with a focus on 3D printing, he works for his professor who apparently was one of the founders of 3D printing, might be an option
__________________
LGAFF 90 #966-150K miles-sold 92 #234-sold 1987 Callaway TT #17 1991 ZR-1 #1359 |
![]() |
![]() |
![]() |
#3 |
![]() Join Date: Apr 2007
Location: Northern VA
Posts: 2,653
|
![]()
I also would like to see an improved intake system developed. Though impressive looking the stock plenum and injector housings ,even when fully ported, limit the LT5’s full potential.
Sent from my iPhone using ZR-1 Net Registry
__________________
Phil Wasinger 1994 Torch Red ZR-1 WAZOO Member George Braml Intake |
![]() |
![]() |
![]() |
#4 |
![]() Join Date: Jul 2012
Location: Allentown, PA
Posts: 309
|
![]()
A low boost Eaton supercharger, similar to the LS upgrades, would be real nice!
__________________
'95 ZR-1, aqua/gray, #167 368 LPE/Haibeck, Web cams, Stainless Works headers, B&B Fusion exhaust, 18" Fikse wheels, Alcon brakes, lowered. 491 SAE RWHP. |
![]() |
![]() |
![]() |
#5 |
Join Date: Aug 2005
Location: Fishers, IN
Posts: 809
|
![]()
No blowers for me. But kudos for anyone who tries. "NA all the way"
__________________
Todd ____________________________________ *** our email address has changed! info@pepmeierengines.com pepmeierengines.com Friend us on Facebook too: www.facebook.com/profile.php?id=100011443683384 Pepmeier Engine Development |
![]() |
![]() |
![]() |
#6 |
![]() Join Date: Sep 2008
Location: Speedway, IN
Posts: 126
|
![]() |
![]() |
![]() |
![]() |
#7 |
Join Date: Aug 2005
Location: Fishers, IN
Posts: 809
|
![]()
I'm considering a bigger oversize iron liner, but will only do it with an Open deck configuration. Essentially grow the normal LT5 iron replacement liner enough to support a 4.125 finished bore. Block machining still required, of course, and it gets mighty thin at the bottom of the block at that point, but doable.
The target market for these kind of parts is miniscule to say the least....
__________________
Todd ____________________________________ *** our email address has changed! info@pepmeierengines.com pepmeierengines.com Friend us on Facebook too: www.facebook.com/profile.php?id=100011443683384 Pepmeier Engine Development |
![]() |
![]() |
![]() |
#8 | |
![]() Join Date: Feb 2017
Location: Menifee
Posts: 50
|
![]() Quote:
ECU is really interesting as well! |
|
![]() |
![]() |
![]() |
#9 |
![]() Join Date: Aug 2014
Location: Kansas City, MO
Posts: 838
|
![]()
Supercharger that would replace the intake manifold would be awesome.
__________________
Looking for a ZR-1 1985 Yamaha RZ350-NOT STOCK 1971 Yamaha AT1-Middle of a restoration |
![]() |
![]() |
![]() |
#10 | |
Join Date: May 2007
Location: Chicagoland, IL
Posts: 9,696
|
![]() Quote:
![]()
__________________
[SIGPIC][/SIGPIC]Former Membership Chairman Former ZR-1 Registry - BOD 1972 Corvette 4speed base Coupe SOLD long time ago 1984 Corvette Z-51/4+3 SOLD 1992 Corvette ZR-1 Aqua/Gray #474 SOLD 1992 Corvette ZR-1 Black Rose/Cognac #458 2014 Honda VFR Interceptor DX |
|
![]() |
![]() |
![]() |
|
|