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Mustang 5.0 vs third gen z/28?

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Old 09-23-2010, 01:59 PM
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Default Mustang 5.0 vs third gen z/28?



So my buddy has picked up a super clean original 92 z/28 which will be getting a future l92/t56 swap. It's a 305 tuned port/ 5 speed. It has a magnaflow catback with a 2.5" y to a 3" intermediate pipe and K&N filters. Rear end from a 4th gen was swapped mostly for the brakes. The rest is bone stock.

My girlfriend has a 94 GT 5.0 automatic. No cats and turbo mufflers. A/C delete and that's about it. It is faster than the stock 5.0 5 speed car in town. She beat him by a solid 2 cars from a dig.

These 2 jokingly give each other **** so we want to pretend its the 90s and run em for king of the 5.0s. Any predictions?

There will most likely be video when it happens...hope to fix a caliper and bleed brakes on the z/28 this week.
Old 09-23-2010, 02:16 PM
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14sec battles
Old 09-23-2010, 03:35 PM
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I just think it's going to be interesting based on the amount of **** the tuned port cars get
Old 09-28-2010, 04:59 PM
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I'll bite, it doesn't have to be a 9 sec battle to be entertaining. The TPI is going to pull the Mustang hard from a dig with a good driver. A long time ago I had an auto 305 with 3.42's & a catback and would crush stock auto 5.0's as long as it wasn't from a roll. Not really the TPI's strong spot.
Old 09-29-2010, 01:27 AM
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Too close to call if they can both drive.
Old 09-29-2010, 02:19 PM
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Well the third gen driver can drive VERY well, my g/f's GT is an auto and its too slow to spin...

But sadly this morning her trans bit the dust. She changed the fluid and filter yesterday and it now won't shift out of 2nd and won't go into reverse.

The z/28 did get a run in with my buddies bolt on ls1 t/a (1 7/8" headers, lid, fresh engine, ls6 intake, monster stage 3 clutch) and it was suprisingly even off the line for a bit before the t/a started to run away.
Old 10-13-2010, 06:12 PM
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The Mustang is a high 15 second car, and the Camaro a high 14 second car if its a G92.
Old 10-14-2010, 10:54 AM
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When she gets the trans rebuilt this should still go down But that will be a while.

Rode in the camaro and it feels strong for what it is...I was impressed. Even more so that at the last autox the bone stock z/28 was running within 1-2 sec of a couple modded suspension 4th gens.

Her GT had a close race with a well driven 06 civic SI with exhaust and a CAI when she had stock exhaust...I think its safe to say its in the top 14s.
Old 10-14-2010, 12:15 PM
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The third gen run 14.6-14.8 most likely with a good driver, my 92 z28 with the 350 and auto trans stock ran around 14.4's a well driven stick 305 car will be close. From a dig to about 60 the Camaro is gonna walk all over it.
Old 10-14-2010, 12:21 PM
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I love those old 3rd gens, great little DIY hot rods. Though mine is more 4th gen than it is 3rd gen anymore...

I kept the stock look though, you'd be amazed at the shock and panic that sweeps over Porsche driving punks when a turd gen blows past them.
Old 10-14-2010, 01:39 PM
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Originally Posted by thunderstruck507
When she gets the trans rebuilt this should still go down But that will be a while.

Rode in the camaro and it feels strong for what it is...I was impressed. Even more so that at the last autox the bone stock z/28 was running within 1-2 sec of a couple modded suspension 4th gens.


Her GT had a close race with a well driven 06 civic SI with exhaust and a CAI when she had stock exhaust...I think its safe to say its in the top 14s.
nobody seems to believe me when i say that the 3rd gens handle very well. my old RS took down 3 modded Fox body 5.0's at one event. and that was with a 3.1 v6/autotragic combo.

and i miss mine, it was a fun little old beast. was it fast??? hell no, but it was a blast to bomb around in.
Old 10-14-2010, 10:36 PM
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Originally Posted by CaptainDirtymax
nobody seems to believe me when i say that the 3rd gens handle very well. my old RS took down 3 modded Fox body 5.0's at one event. and that was with a 3.1 v6/autotragic combo.

and i miss mine, it was a fun little old beast. was it fast??? hell no, but it was a blast to bomb around in.
Agreed, my car has a lot of susp stuff. While it's not fast it will kick *** on the autocross and road course.
Old 10-15-2010, 01:06 AM
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My 86 IROC absolutely handled on rails. It was fun as **** around corners. It was a stock IROC with the 5.0 TPI and A4.
Old 10-15-2010, 01:34 AM
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Originally Posted by thunderstruck507
When she gets the trans rebuilt this should still go down But that will be a while.

Rode in the camaro and it feels strong for what it is...I was impressed. Even more so that at the last autox the bone stock z/28 was running within 1-2 sec of a couple modded suspension 4th gens.

Her GT had a close race with a well driven 06 civic SI with exhaust and a CAI when she had stock exhaust...I think its safe to say its in the top 14s.
My friends car (88 305 TPI 5-spd) that was bone stock at the time beat an 09ish Civic SI by about 2-3 cars. Both drivers were pretty poor, but my friends car was still on the stock 88 plugs with a very clogged air filter/tb (although with that setup it dyno'd at 188whp on a 100deg day). IDK if her 5.0 is running in the high 14s, those cars were pretty slow. The 305's feel a lot faster than they really are. My friends feels wicked until you find out the power stays about the same from 3k to 5k ha.

IDK about 14's though, I was at his door when we hit 90 with my bolt-on 4x4 Dakota (4.7 5-spd reg cab short box lifted 3"), me and a 250lb friend in it with a box full of **** and a full tank of gas with a shitty launch against just him on empty in his car.

But if the guy drives as good as you say he does my money is on the Camaro.
Old 10-15-2010, 01:46 AM
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Originally Posted by gocartone
My friends car (88 305 TPI 5-spd) that was bone stock at the time beat an 09ish Civic SI by about 2-3 cars. Both drivers were pretty poor, but my friends car was still on the stock 88 plugs with a very clogged air filter/tb (although with that setup it dyno'd at 188whp on a 100deg day). IDK if her 5.0 is running in the high 14s, those cars were pretty slow. The 305's feel a lot faster than they really are. My friends feels wicked until you find out the power stays about the same from 3k to 5k ha.

IDK about 14's though, I was at his door when we hit 90 with my bolt-on 4x4 Dakota (4.7 5-spd reg cab short box lifted 3"), me and a 250lb friend in it with a box full of **** and a full tank of gas with a shitty launch against just him on empty in his car.

But if the guy drives as good as you say he does my money is on the Camaro.
I'm gonna say your friend sucks at driving a little less . The current-gen SIs are solid mid-high 14s cars with any sort of driver.
Old 10-15-2010, 01:55 AM
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Originally Posted by Irunelevens
I'm gonna say your friend sucks at driving a little less . The current-gen SIs are solid mid-high 14s cars with any sort of driver.
I agree with you, but they are both not great drivers. I think with myself behind the wheel we could have put another length or two on the SI. I think they are low 15/high 14 cars though. He put 2 lengths on him by the end of 2nd, after that he stopped pulling away and shut it down at about 90. With something like a 40-110 roll that SI would have took him.
Old 10-15-2010, 01:58 AM
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With a decent driver in decent conditions, 15.xx should never show up on the board. My basically-stock (axle-back exhaust) '94 Integra GS-R ran a 14.97 @ 93.82mph with 152k miles on it... '02-'04 RSX Type S is faster than that by just a LITTLE, '05+ RSX-S is faster than the 02-04 by a tenth or two, and the newer Civic Si is every bit the equal of an '05+ RSX-S.
Old 10-15-2010, 02:04 AM
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Maybe those 305 tpi's are just that fast than. He's never run it at a track so no idea what it would pull.
Old 10-16-2010, 07:12 AM
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Originally Posted by gocartone
Maybe those 305 tpi's are just that fast than. He's never run it at a track so no idea what it would pull.
They ranged from 190-230HP depending upon options. Several speed density G92 cars have gone mid 14s around 94-95 completely stock, and would run door to door with a notch 5.0. Unfortunately their much rarer than the peanut cam cars that struggle to run mid 15s.



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