Shabib67

Hey guys i wanted to know the differences between these turbos. I know there is already info out there on the R85 and GT40R but what about the Gotham Racing 74 Turbo. They claim that it can make 10psi by 3600rpms. Any specs on what kind of turbo it is. I am looking for a turbo that will make full boost before 4500rpm but will have sick top end. Im trying to run with the big boy (supras,vipers,z06) on the highway and want a turbo that isnt lag crazy but can pull like hell up top. Also for the GT40R kits which store has the best kit. Seems like everyone likes the A-Spec tuning one but i see that rx7store.net also has a gt40r kit.

Shabib67

Correction Gotham Racing also has a GT40R racing kit which is more expensive than the GR 74 yet the GR 74 makes more power???

Zero R

iTrader: (1)

I may have something very nice for you PM sent.

1wide7

iTrader: (1)

whats all this secret stuff dont hold out on us Zero R

Zero R

iTrader: (1)

Damn you guys are quick..... not holding out on anyone. I will be posting more on it in my section later today. Just don't want to get into a vendor pissing match It will offer exactly what he described.

-S-

Shabib67

Zero R does indeed have something very interesting to share. Might blow peoples minds away to tell the truth.

FourtyOunce

iTrader: (15)

care to share Zero R? Im shopping around for a new setup for next year.

Zero R

iTrader: (1)

Something tells me you wouldn't be interested, but shoot me PM with your goals for next year, but I think you'll want something different from this.

BLitzed33

Just going from experience, the R85 is not laggy for a non ball bearing turbo, I make full 27 lbs by 4500 rpms and it carries through nicely to 8500 rpm's with a nice flat torque curve.

Zero R

iTrader: (1)

https://www.rx7club.com/showthread.p...39#post6159039


-S-

Zero R

iTrader: (1)

27psi by 4500 on that turbo for non-BB is not bad at all

-S-

Shabib67

Bump for any info on the Gotham Racing 74 turbo.

FourtyOunce

iTrader: (15)

i wouldnt? how come? i guess i have to write you an explanation of my goals at lenght ....

GoodfellaFD3S

iTrader: (213)

The best place to get info is from the source. Call 817 788 8726 and ask to speak to steve or alex.

rxpwr

i say gt40r is pretty sick

mr2foryou

I say so too!!!

rxpwr

i have a third gen single set up should dyno at about 490 whp gt40r turbo.

mr2foryou

How much boost and what kind of gas? What kind of ports and fuel system are you running? I am hoping for 550-600whp on 27-30 psi and c16.

Dee

ErnieT

iTrader: (2)

Just get yourself the GT42R and you'll smoke any of the turbo kits you mentioned. It will spool up to 30psi by 4800rpms and 15psi by 4300ish, depending on porting, timing, etc...You'll have a highway killer.

rxpwr

pump gas 15psi rx7 store fuel system large port power fc comander intercooler racing cluth koyo rad bltz waste gate ect.

rxpwr

for street use this set up is awsome there will be very little out there that can come close or faster remember on pump gas not bad.

rxpwr

currently on standby. 79 corolla 1700pounds -mods 95 supra inline turbo charged 1000 whp street killer pretty much fastes giant out there recent victim 04 vyper super charged poor guy felt bad for um.

mr2foryou

rxpwr: good luck.

Original thread starter: I would say go with the GT42R like ErnieT stated and be done with it.

Dee