Stock bottom end goes 11.6's NA
11-19-2003, 07:38 AM
#16
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Thread Starter
Join Date: Jan 2000
Posts: 31
Don't get me wrong guys. I'd love to put a stout bottom end under there. But, you gotta have your priorities. I have a wife, a 1 year old, a new house, and now we're attempting to build a garage (mmmmm I can't wait to have my own lift). Once the garage is done and the house gets it's modifications then I'll start to think about the bottom end. But, IMHO, the bottom end won't go first. The first thing will be the transmission. This 700R has never been rebuilt. It wasn't meant to hold this type of power.
BTW - Anyone spinning thier L98 as high as me should definitely install a very good harmonic balancer. I have been running a Fluidampr since day 1 and give that piece some of the credit that my bottom end has held together so well.
Tim
BTW - Anyone spinning thier L98 as high as me should definitely install a very good harmonic balancer. I have been running a Fluidampr since day 1 and give that piece some of the credit that my bottom end has held together so well.
Tim
11-19-2003, 11:23 AM
#18
Registered User
Join Date: Jul 2002
Location: College Station, TX
Posts: 41
thanks for the post, I'm hoping to get into the 11's on a stock bottom end.
I agree with you - i would love to have a better bottom end, but i have a house, wife, etc and this is my 'fun' car. If it goes, time to build another motor
30k miles on a stock l98 bottom end, carbed, cammed, heads and spray (100)!
I agree with you - i would love to have a better bottom end, but i have a house, wife, etc and this is my 'fun' car. If it goes, time to build another motor
30k miles on a stock l98 bottom end, carbed, cammed, heads and spray (100)!
11-19-2003, 12:07 PM
#19
Registered User
Join Date: Dec 1969
Location: Phila., PA
Posts: 1,150
That's really very impressive. Not even the ET so much as the MPH. That's some serious top end pull, especially though an automatic.
My one experience with the MiniRam intake on a larger 400 we got 110+ MPH out of it first time down the track. Eventually we worked out some kinks (wrong injectors, etc) and went 112. This was a much milder combo than yours, except for the larger cubes- which is a testament to how much HP you can make with a MiniRam.
Our combo looked something like this (from memory):
409ci, stock crank, stock 400 rods (5.56")
Trick Flow G2 heads- box stock
Crane Energizer flat tappet hydraulic cam (210*/210*, .440/.440 lift on a 110* LSA)
Hooker shortie headers, 3" exhaust
SLP cold air intake
Off-the-shelf TPIS chip, utilizing stock MAF system (it was a 1987 GTA)
700R4 trans- dead stock, just like yours but with shift kit and Vette guts to allow OD at WOT
Stock torque converter
Stock 3.23 rear gears
Pep Boys Futura radials (2.0 60 foot times)
Just shy of 3900lbs race weight YIKES!
Shifted at 5800RPM
The thing made just STUPID bottom end torque. Getting it out of the hole was real artwork. On a dyno it laid 470+ ft/lbs to the rollers at only 2700 RPMs (as low as we could lug it without a downshift) and was flat as a billiard table right up to 5000, dropping off gradually after that. The dyno's HP numbers were way off so I did my own math and came up with about 420HP at the crank- take that with a grain of salt, obviously.
Later on, the cam lost a lobe so we shoved in a larger Comp Cams 270 Magnum (224*/224*, .470/.470" lift on a 110* LSA). Never got that combo dyno'ed but my calibrated butt told me we traded just a smidge of bottom end torque (glad to be rid of it, actually) for some serious mid RPM pull. It would go through the traps at a solid 114-115 MPH and was a little easier to launch out of the hole.
Best race this car ever had- a mid-90s ZR-1 Vette. An arranged highway race. The Vette lost. Nothing like sailing right past a ZR-1 Vette at 120 MPH, hitting overdrive and continuing to walk away.
BTW- most of these runs were made at Cecil County Dragway, just like you. I live near Wilmington, DE so it's my home track, too.
My one experience with the MiniRam intake on a larger 400 we got 110+ MPH out of it first time down the track. Eventually we worked out some kinks (wrong injectors, etc) and went 112. This was a much milder combo than yours, except for the larger cubes- which is a testament to how much HP you can make with a MiniRam.
Our combo looked something like this (from memory):
409ci, stock crank, stock 400 rods (5.56")
Trick Flow G2 heads- box stock
Crane Energizer flat tappet hydraulic cam (210*/210*, .440/.440 lift on a 110* LSA)
Hooker shortie headers, 3" exhaust
SLP cold air intake
Off-the-shelf TPIS chip, utilizing stock MAF system (it was a 1987 GTA)
700R4 trans- dead stock, just like yours but with shift kit and Vette guts to allow OD at WOT
Stock torque converter
Stock 3.23 rear gears
Pep Boys Futura radials (2.0 60 foot times)
Just shy of 3900lbs race weight YIKES!
Shifted at 5800RPM
The thing made just STUPID bottom end torque. Getting it out of the hole was real artwork. On a dyno it laid 470+ ft/lbs to the rollers at only 2700 RPMs (as low as we could lug it without a downshift) and was flat as a billiard table right up to 5000, dropping off gradually after that. The dyno's HP numbers were way off so I did my own math and came up with about 420HP at the crank- take that with a grain of salt, obviously.
Later on, the cam lost a lobe so we shoved in a larger Comp Cams 270 Magnum (224*/224*, .470/.470" lift on a 110* LSA). Never got that combo dyno'ed but my calibrated butt told me we traded just a smidge of bottom end torque (glad to be rid of it, actually) for some serious mid RPM pull. It would go through the traps at a solid 114-115 MPH and was a little easier to launch out of the hole.
Best race this car ever had- a mid-90s ZR-1 Vette. An arranged highway race. The Vette lost. Nothing like sailing right past a ZR-1 Vette at 120 MPH, hitting overdrive and continuing to walk away.
BTW- most of these runs were made at Cecil County Dragway, just like you. I live near Wilmington, DE so it's my home track, too.
Last edited by Damon; 11-19-2003 at 12:10 PM.
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