***GM Stock Shortblock Heads/Cam - 10's NA & 9's on N2o
01-05-2009 | 01:53 PM
#1
***GM Stock Shortblock Heads/Cam - 10's NA & 9's on N2o Guys,
Thought we'd make a quick post on our fastest GM stock shortblock customer. Like most of our customers he's an older gentleman who doesn't post online, so it is doubtful anyone really knows about it. Recently he said he wouldn't mind if we shared some data on his car. We figured you guys might get a kick out of it.
The car runs our 200cc CNC'd GM LT1 heads and a moderate 22Xdeg HR we spec for daily cars. For simplicity he asked to go carbureted so we converted a Vic. Jr. for him to go with his CNC'd LT1's. Just as the stock manifold does not pose much restriction at this power level, neither does the Vic Jr. so it was left unported. The compression ratio is 11.1:1 and the shortblock has never been apart.
While the car runs well naturally aspirated, it is really setup to run on the bottle. The n2o gearing (3.73), converter (3XXXrpm), and tire is a little tall for NA passes, but it keeps the RPM down and helps the car run consistently. The raceweight is 31XXlb. The customer doesn't have a weather station, but he does know the best NA mph of 127.9 was run this August at 8Xdeg and 60% humidity (sorry guys, doesn't know baro or we'd quote DA).
Naturally Aspirated Timeslip:
135hp N2O Timeslip:
The Car:
If you guys have questions on it, we will relay them to him. Thanks guys
Thought we'd make a quick post on our fastest GM stock shortblock customer. Like most of our customers he's an older gentleman who doesn't post online, so it is doubtful anyone really knows about it. Recently he said he wouldn't mind if we shared some data on his car. We figured you guys might get a kick out of it.
The car runs our 200cc CNC'd GM LT1 heads and a moderate 22Xdeg HR we spec for daily cars. For simplicity he asked to go carbureted so we converted a Vic. Jr. for him to go with his CNC'd LT1's. Just as the stock manifold does not pose much restriction at this power level, neither does the Vic Jr. so it was left unported. The compression ratio is 11.1:1 and the shortblock has never been apart.
While the car runs well naturally aspirated, it is really setup to run on the bottle. The n2o gearing (3.73), converter (3XXXrpm), and tire is a little tall for NA passes, but it keeps the RPM down and helps the car run consistently. The raceweight is 31XXlb. The customer doesn't have a weather station, but he does know the best NA mph of 127.9 was run this August at 8Xdeg and 60% humidity (sorry guys, doesn't know baro or we'd quote DA).
Naturally Aspirated Timeslip:
135hp N2O Timeslip:
The Car:
If you guys have questions on it, we will relay them to him. Thanks guys
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01-05-2009 | 06:14 PM
#15
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Joined: Oct 2007
Posts: 2,630
Likes: 26
Those are very impressive track numbers no doubt, but something about all of the vehicle specs don't jive.
Race weight =31XX (we'll go with 3100)
Converter=3XXX stall (we'll go with 3500ish)
CI=350 (stock)
Here's the kicker...
60 foot time=1.41 (n/a mind you) with 3.73's and a tallish tire like you said.
So this guy is putting down about ...oh I don't know............500hp at the wheels? With a 22X cam? I'd believe those numbers if the car was really around 2800-2900lbs and the stall was over 4G and it had 4.10's or something. Maybe you can get this guy to post up.
I'm not hating at all, honestly, it just seems too good to be true.
Race weight =31XX (we'll go with 3100)
Converter=3XXX stall (we'll go with 3500ish)
CI=350 (stock)
Here's the kicker...
60 foot time=1.41 (n/a mind you) with 3.73's and a tallish tire like you said.
So this guy is putting down about ...oh I don't know............500hp at the wheels? With a 22X cam? I'd believe those numbers if the car was really around 2800-2900lbs and the stall was over 4G and it had 4.10's or something. Maybe you can get this guy to post up.
I'm not hating at all, honestly, it just seems too good to be true.
01-05-2009 | 06:30 PM
#16
see if this adds up:
97 Z28 T-top car at 3150 bolt on LT1/T56, 12bolt/spool/3.73s 60' of 1.53-1.55 and running 113-115 at 11.80, how much HP does that take?
What about the same said car at 3110 with LS1 with Headers, full exhaust, LT1 CAI, A4/PT4400, 4.10s/10bolt hitting 1.51-1.49 60's running 7.33x @ 91-93 in the 1/8th, car went 11.59 @ 119 on a high 1.5 60, how much HP does that take?
It does not take alot of HP to go fast or quick, it takes the right combo, the combo would include parts, weather, tuning, weight, etc it is not just one thing.
97 Z28 T-top car at 3150 bolt on LT1/T56, 12bolt/spool/3.73s 60' of 1.53-1.55 and running 113-115 at 11.80, how much HP does that take?
What about the same said car at 3110 with LS1 with Headers, full exhaust, LT1 CAI, A4/PT4400, 4.10s/10bolt hitting 1.51-1.49 60's running 7.33x @ 91-93 in the 1/8th, car went 11.59 @ 119 on a high 1.5 60, how much HP does that take?
It does not take alot of HP to go fast or quick, it takes the right combo, the combo would include parts, weather, tuning, weight, etc it is not just one thing.
Those are very impressive track numbers no doubt, but something about all of the vehicle specs don't jive.
Race weight =31XX (we'll go with 3100)
Converter=3XXX stall (we'll go with 3500ish)
CI=350 (stock)
Here's the kicker...
60 foot time=1.41 (n/a mind you) with 3.73's and a tallish tire like you said.
So this guy is putting down about ...oh I don't know............500hp at the wheels? With a 22X cam? I'd believe those numbers if the car was really around 2800-2900lbs and the stall was over 4G and it had 4.10's or something. Maybe you can get this guy to post up.
I'm not hating at all, honestly, it just seems too good to be true.
Race weight =31XX (we'll go with 3100)
Converter=3XXX stall (we'll go with 3500ish)
CI=350 (stock)
Here's the kicker...
60 foot time=1.41 (n/a mind you) with 3.73's and a tallish tire like you said.
So this guy is putting down about ...oh I don't know............500hp at the wheels? With a 22X cam? I'd believe those numbers if the car was really around 2800-2900lbs and the stall was over 4G and it had 4.10's or something. Maybe you can get this guy to post up.
I'm not hating at all, honestly, it just seems too good to be true.
01-05-2009 | 06:35 PM
#17
I cannot wait to get the rest of my car built a bit better so i can get my 200cc heads from you guys to go along with my 226/234 AI cam. You guys just keep putting down more and more inpressive numbers. Awesome job!
01-05-2009 | 06:39 PM
#18
10 Second Club
Joined: Oct 2007
Posts: 2,630
Likes: 26
No kidding. The car in the OP went over a full second faster than either of the cars you just listed at the same weight. That's EASILY another 100hp at the wheels. Probably more like 120 or so. On a 350.
01-05-2009 | 06:45 PM
#20
Off the top of my head I'd say, around 350-360 rwhp
Off the top of my head, a touch more than the other car, around 370ish rwhp.
No kidding. The car in the OP went over a full second faster than either of the cars you just listed at the same weight. That's EASILY another 100hp at the wheels. Probably more like 120 or so. On a 350.
Off the top of my head, a touch more than the other car, around 370ish rwhp.
No kidding. The car in the OP went over a full second faster than either of the cars you just listed at the same weight. That's EASILY another 100hp at the wheels. Probably more like 120 or so. On a 350.
This Bolt on LS1 making 370, doubt that too
But if that is true, HOLY COW, just think when I put on a set of AI heads and a cam....
So either way that car is flat getting it done, Congrats to all involved!