Shift Lights, Set At What Max RPM?? - Page 2 - ZR-1 Net Registry Forums

jonszr1 · 01-05-2009

no they arent done . corey did say i had one of thehighest hp cars he had done . in fact the car has 157k on it now . corey would be proably be the best person to share about my car. my callaway 475 super natural made 373 wrhp stk. and ran 12.78 @113.88 stk. after stainless works headers and cat install it has run a best of 12.48 @116.47. the black car also has 4.10s the callaway has 3,92s . i am going to change out the headers and exhaust from the black car and put on the callaway and see what the difference is for fun . the jeal headers seem to have longer and more equal length pipes . other than that i dont know what to say other than that is the results that we got .hope this helps

jonszr1 · 01-05-2009

the spin tec guys did an awsome job on the exhaust . they used 23/4 in pipe instead of 3 in saying unless i made a bunch more power 3 in would take alot of low end out of the car their exhaust made 22 more hp than the flowmaster system .

Robm3 · 01-05-2009

Quote:

Originally Posted by Jeffvette

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

Jeff,
It's a G50/OO, 1st, 2nd and 3rd are lengthened 4th and 5th as standard, this was done before I brought the car though.

Not sure what the ratios are, have a sheet somewhere but suspect it's in a box in the loft with a load of invoices my wife can never see!!

I do find the 5th gear a little short and thinking of getting 4th and 5th changed upwards to suit though.

Standard is:G50/00 3.5 2.059 1.409 1.074 0.861

Funny enough I was just looking at a shift light that worked on a combination of speedo and gear selection, Could be adjusted for different shift times depending on gear, sounds good but a little complicated for me to fit.

01-05-2009

Robin, it really depends upon your gearing where you need to shift. See if you can get the ratios and we can go from there.

tpepmeie · 01-05-2009

Quote:

Originally Posted by 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.

This isn't the first time we've been through this conversation on Brad's car. He even posted up the dyno sheet here once I think. Two things I can remember, 1) Corey's #'s are corrected to STD, I think. and 2) there was an anomoly at the end of the run when the throttle was shut which spiked the indicated RWHP to the 409.9. Going from memory, but I think that was the essence of the discussion.

Back to your regularly scheduled programming.

EDIT: my memory is slightly failing. Here is the thread. Wasn't Brad's car, but I would guess same phenomenon would be seen in his graph. we know it is corrected to STD, not SAE.
http://forums.*************.com/c4-z...on-a-dyno.html

xlr8nflorida · 01-05-2009

Quote:

Originally Posted by tpepmeie

This isn't the first time we've been through this conversation on Brad's car. He even posted up the dyno sheet here once I think. Two things I can remember, 1) Corey's #'s are corrected to STD, I think. and 2) there was an anomoly at the end of the run when the throttle was shut which spiked the indicated RWHP to the 409.9. Going from memory, but I think that was the essence of the discussion.

Back to your regularly scheduled programming.

I'm just saying it seems odd, like they are not corrected numbers but what do I know

1990 quasar blue · 01-06-2009

They are corrected but, to STD not SAE. STD numbers read a little higher than SAE. I always thought that they sounded high too but, you can't argue with 120 MPH trap speeds.

jonszr1 · 01-06-2009

you are right they are corrected to std. but there is no spike at the end . i need someone that can give me a fax number that will post the sheet for me .the car does seem very strong running between 119-120.5 even when the das are 2500+. the spin tec custom exhaust i had done was the icing on the cake .it is loud but when she runs that good who cares

xlr8nflorida · 01-07-2009

I guess when i say corrected I mean SAE.

Those are the numbers I use when I talk about RWHP.

Either way, the #'s are respectable.

jonszr1 · 01-07-2009

is there a way to correct them to sae. on the sheet is temp and humidity?????/

01-05-2009	#11
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,407	Re: Shift Lights, Set At What Max RPM?? no they arent done . corey did say i had one of thehighest hp cars he had done . in fact the car has 157k on it now . corey would be proably be the best person to share about my car. my callaway 475 super natural made 373 wrhp stk. and ran 12.78 @113.88 stk. after stainless works headers and cat install it has run a best of 12.48 @116.47. the black car also has 4.10s the callaway has 3,92s . i am going to change out the headers and exhaust from the black car and put on the callaway and see what the difference is for fun . the jeal headers seem to have longer and more equal length pipes . other than that i dont know what to say other than that is the results that we got .hope this helps

01-05-2009	#12
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,407	Re: Shift Lights, Set At What Max RPM?? the spin tec guys did an awsome job on the exhaust . they used 23/4 in pipe instead of 3 in saying unless i made a bunch more power 3 in would take alot of low end out of the car their exhaust made 22 more hp than the flowmaster system .

01-05-2009	#14
Jeffvette Guest Posts: n/a	Re: Shift Lights, Set At What Max RPM?? Robin, it really depends upon your gearing where you need to shift. See if you can get the ratios and we can go from there.

01-06-2009	#17
1990 quasar blue Join Date: Feb 2004 Location: Ma Posts: 404	Re: Shift Lights, Set At What Max RPM?? They are corrected but, to STD not SAE. STD numbers read a little higher than SAE. I always thought that they sounded high too but, you can't argue with 120 MPH trap speeds. __________________ 1990 ZR1 #2574 Medium Quasar Blue Metallic 1 of 19

01-06-2009	#18
jonszr1 Join Date: Sep 2006 Location: lone pine and mammoth lakes Posts: 1,407	Re: Shift Lights, Set At What Max RPM?? you are right they are corrected to std. but there is no spike at the end . i need someone that can give me a fax number that will post the sheet for me .the car does seem very strong running between 119-120.5 even when the das are 2500+. the spin tec custom exhaust i had done was the icing on the cake .it is loud but when she runs that good who cares

01-07-2009	#19
xlr8nflorida Join Date: May 2008 Location: USA Posts: 1,096	Re: Shift Lights, Set At What Max RPM?? I guess when i say corrected I mean SAE. Those are the numbers I use when I talk about RWHP. Either way, the #'s are respectable. Last edited by xlr8nflorida; 01-07-2009 at 12:06 AM.