Shift Lights, Set At What Max RPM??

[Robm3]

Hi guys,
One thing missing from my car is Shift Lights, I've seen some on Ebay that have 5 sequential lights (green, green, green, amber, red (large)) and can wire into my tacho pretty easily but wondering at what level these should be set?

This device can be set at any interval but must be the same space apart e.g. for 200rpm it would be:
4800, 5000, 5200, 5400, 5600 etc.

I guess if someone could comment on the max rpm (redline) then I'll work backwards, probably in the 200rpm intervals.

Thanks in advance,
Robin.

[A1990]

My shift light is just an on or off type light. Rev limiter is at 7400rpm while shift light comes on at 6800. allows for reaction time. 1st gear with the 4.10's is still a challenge.

[jonszr1]

first ?is your motor mostly stk except headers . if it is i would set the shift light at 6500 . as i have found that to be the best rpm to create the fastest times at the strip . if you have or get ported inj housings and plenum you can raise it too 6800. if you are drag racing you might find as i have that short shifting first to second @6300 to iimprove ets 1.5-.2 tenths due to the fact you dont spin the tires like when you take it to 6800. chris was telling me you were wondering where you could get some mods done .porting of the inj housings and plenum are a good start . then i would suggest corey henderson. he did an excellent job on mine .his ph is 210 867 6286 . he could also do your heads ,if you either have someone who has knowledge of timming the cams after it is done

[Robm3]

Originally Posted by jonszr1

first ?is your motor mostly stk except headers . if it is i would set the shift light at 6500 . as i have found that to be the best rpm to create the fastest times at the strip . if you have or get ported inj housings and plenum you can raise it too 6800. if you are drag racing you might find as i have that short shifting first to second @6300 to iimprove ets 1.5-.2 tenths due to the fact you dont spin the tires like when you take it to 6800. chris was telling me you were wondering where you could get some mods done .porting of the inj housings and plenum are a good start . then i would suggest corey henderson. he did an excellent job on mine .his ph is 210 867 6286 . he could also do your heads ,if you either have someone who has knowledge of timming the cams after it is done

My engine is basically stock 'cept the headers and intake. I don't do drag racing but lots of trackdays instead. I'm not really keen to have the Top shift light on at max revs but 6500 sound sensible.
Is Corey in the UK? Sounds like a US number to me?
Thanks for the info anyhow...

[Aurora40]

Edit: ignore me, I assumed this was a ZR-1 we were talking about.

[jonszr1]

Originally Posted by Robm3

My engine is basically stock 'cept the headers and intake. I don't do drag racing but lots of trackdays instead. I'm not really keen to have the Top shift light on at max revs but 6500 sound sensible.
Is Corey in the UK? Sounds like a US number to me?
Thanks for the info anyhow...

yes it is a us phone number but i will bet if you called him and set it up with him he could do a fairly fast turn around for you he could even give you a prom to match what he has done porting wise . to give you an example of his porting excellance my car made 372rwhp before he ported my inj housings and plenum and after with his tunning made 409.9 wrhp a 38 hp increase . if you have a fax number i would be more than happy to send you a copy of the actuall dyno sheet for you to look at . i think your shift redline of 6300 to 6500 would promote a long and happy engine life . i do just love your car i will bet it is almost impossible to get out of . very nice job . i am am wishfull that one day i could do one for myself

[xlr8nflorida]

Originally Posted by jonszr1

yes it is a us phone number but i will bet if you called him and set it up with him he could do a fairly fast turn around for you he could even give you a prom to match what he has done porting wise . to give you an example of his porting excellance my car made 372rwhp before he ported my inj housings and plenum and after with his tunning made 409.9 wrhp a 38 hp increase . if you have a fax number i would be more than happy to send you a copy of the actuall dyno sheet for you to look at . i think your shift redline of 6300 to 6500 would promote a long and happy engine life . i do just love your car i will bet it is almost impossible to get out of . very nice job . i am am wishfull that one day i could do one for myself

409 with just PP of injector housings and plenum, something is awry?

[jonszr1]

before the porting the car had jeal headers fidanza flywheel and haibeck prom . corey dynod just before we took it apart to port then when he was done he put it on the dyno and tuned the car for best output . if you have a fax number you would pm me i would be more than happy to send you a copy of the dyno sheet from when he did it .or you can call corey yourself and he will confirm my numbers. just ask him what brads car did . his ph is 210 867 6286. car now makes 431 rwhp with the change from the flowmaster system that was on the car then to the custom spin tec system with a dr gas xpipe that is on the car now .also there are vids of the black car on utube just type in joeshmoe12301230 in the search box . car has run a best of 11.78@119.85mph but sadly dont have vids of that run . but the mph is a testament as to coreys fine work which is in the vids. those vids were done in aug when the temps at famoso were in the 90s and the da was in the 2700 ft range

[xlr8nflorida]

I believe you have the dyno sheets but those numbers just don't make sense to me unless you just have a beastly LT-5 from the factory.

Are your heads done?

You should be in the 400-410 range. Maybe you just have a really strong LT-5.

Robin, what are the ratios in the transmission & differential?